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Engine with Installation Components
21

Upd:2014-08-13 6686 7742100 -21 -13875

MD21B, AQD21B
 HeavyManuals.com
Engine with Installation Components
21

REF QTY DESCRIPTION SEE SEC.

1 1 cylinder block
MD21B, AQD21B 13873
2 1 crankshaft and related parts

MD21B, AQD21B 13874

3 1 camshaft and valve mechanism

MD21B, AQD21B 13876

4 1 cylinder head
MD21B, AQD21B 13869
5 1 lubricating system
MD21B, AQD21B 13870
6 1 engine mounts
MD21B, AQD21B 13871
MD21B/110S 13872

7742100- 21- 13875 6686 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Cylinder Block: A
21
MD21B

34 35 29 30
20 25 26

44
1 43 45
33 32 42
35 31 41

6 46
2

13
4
5 22
21
3
10
23
24
14
19
9 8
28
13 27
7 15

12
30
17 11 29
18

16
18

37

36

39

47

40
38

Upd:2014-08-13 4152 7742100 -21 -13873

MD21B, AQD21B
 HeavyManuals.com
Cylinder Block: A
21
MD21B

REF PART NO. QTY DESCRIPTION NOTES

1 (826827) 1 Cylinder block Obsolete part
2 (826662) 1 Plug Obsolete part
3 (826663) 1 Plug Obsolete part
4 (826664) 4 Plug Obsolete part
5 (818002) 4 Domed washer Obsolete part
6 (818003) 1 Domed washer Obsolete part
7 (818047) 1 Plug Obsolete part
8 (818227) 1 Shaft Obsolete part
9 (818491) 1 Plug Obsolete part
10 (818492) 1 Pin Obsolete part
11 818016 2 Gasket
12 (818498) 2 Locating pin Obsolete part
13 (818495) 2 Base Obsolete part
14 (826758) 2 Guide sleeve Obsolete part
15 (818497) 4 Locating pin Obsolete part
16 818500 10 Screw Replaced by 1ea 829999,1ea 830000,1 C 840160,1ea 818177, 1ea
818178., Repl by 840649
(840649) 10 Screw Obsolete part
17 818499 10 Spring washer Not included in 829999., Repl by 840649
18 5 bearing cap Not included in 829999.
19 818017 2 Sealing
20 (818493) 2 Stud Obsolete part
21 813615 1 Reduction nipple MO-3218827/XXXX
947899 1 Reduction nipple M0 3218828/XXXX-
22 957178 1 Gasket M0-3218827/XXXX
957175 1 Gasket M0 3218828/XXXX-
23 16218 1 Elbow nipple
24 82744 1 Shut-off cock Used on crankshaft 826834.
25 (819118) 1 Flange Obsolete part
26 819119 1 Gasket
27 (826600) 1 Gasket Obsolete part
28 826514 1 Gasket
29 955271 4 Hexagon screw
30 941906 4 Spring washer
31 (818456) 2 Hatch Obsolete part
32 818457 2 Gasket
33 955269 10 Hexagon screw
34 955781 2 Hexagon nut
35 941906 12 Spring washer
36 (826925) 1 Intermediate plate Obsolete part
37 818240 1 Gasket
38 (946514) 1 Hexagon screw Obsolete part
39 (946515) 2 Hexagon screw Obsolete part
40 (826845) 4 Washer Obsolete part
41 818273 1 Gasket
42 (826736) 1 Flywheel housing Obsolete part
43 826765 1 Gasket See group 4A
44 (959667) 1 Hexagon screw L=50mm see group 4A, Obsolete part
(959671) 2 Hexagon screw L=70mm see group 4A, Obsolete part
45 940280 3 Spring washer See group 4A
46 1 lift eye See group 4A
47 (826844) 1 Screw Obsolete part
(946514) 1 Hexagon screw M0 3114784/XXXX-, Obsolete part

7742100- 21- 13873 4152 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Cylinder Block: B
21
AQD21B

34 35 29 30
20 25 26

44
1 43 45
33 32 42
35 31 41

6 46
2

13
4
5 22
21
3
10
23
24
14
19
9 8
28
13 27
7 15

12
30
17 11 29
18

16
18

37

36

39

47

40
38

Upd:2014-08-13 4152 7742100 -21 -13873B

MD21B, AQD21B
 HeavyManuals.com
Cylinder Block: B
21
AQD21B

REF PART NO. QTY DESCRIPTION NOTES

1 (826827) 1 Cylinder block Obsolete part
2 (826662) 1 Plug Obsolete part
3 (826663) 1 Plug Obsolete part
4 (826664) 4 Plug Obsolete part
5 (818002) 4 Domed washer Obsolete part
6 (818003) 1 Domed washer Obsolete part
7 (818047) 1 Plug Obsolete part
8 (818227) 1 Shaft Obsolete part
9 (818491) 1 Plug Obsolete part
10 (818492) 1 Pin Obsolete part
11 818016 2 Gasket
12 (818498) 2 Locating pin Obsolete part
13 (818495) 2 Base Obsolete part
14 (826758) 2 Guide sleeve Obsolete part
15 (818497) 4 Locating pin Obsolete part
16 818500 10 Screw Replaced by 1ea 829999,1ea 830000,1 C 840160,1ea 818177, 1ea
818178., Repl by 840649
(840649) 10 Screw Obsolete part
17 818499 10 Spring washer Not included in 829999., Repl by 840649
18 5 bearing cap Not included in 829999.
19 818017 2 Sealing
20 (818493) 2 Stud Obsolete part
21 813615 1 Reduction nipple MO-3218827/XXXX
947899 1 Reduction nipple M0 3218828/XXXX-
22 957178 1 Gasket M0-3218827/XXXX
957175 1 Gasket M0 3218828/XXXX-
23 16218 1 Elbow nipple
24 82744 1 Shut-off cock Used on crankshaft 826834.
25 (819118) 1 Flange Obsolete part
26 819119 1 Gasket
27 (826600) 1 Gasket Obsolete part
28 826514 1 Gasket
29 955271 4 Hexagon screw
30 941906 4 Spring washer
31 (818456) 2 Hatch Obsolete part
32 818457 2 Gasket
33 955269 10 Hexagon screw
34 955781 2 Hexagon nut
35 941906 12 Spring washer
36 (826925) 1 Intermediate plate Obsolete part
37 818240 1 Gasket
38 (946514) 1 Hexagon screw Obsolete part
39 (946515) 2 Hexagon screw Obsolete part
40 (826845) 4 Washer Obsolete part
41 818273 1 Gasket
42 (826736) 1 Flywheel housing Obsolete part
43 826765 1 Gasket See group 4A
44 (959667) 1 Hexagon screw L=50mm see group 4A, Obsolete part
(959671) 2 Hexagon screw L=70mm see group 4A, Obsolete part
45 940280 3 Spring washer See group 4A
46 1 lift eye See group 4A
47 (826844) 1 Screw Obsolete part
(946514) 1 Hexagon screw M0 3114784/XXXX-, Obsolete part

7742100- 21- 13873B 4152 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Cylinder Block: MD21B/110S
21

34 35 29 30
20 25 26

44
1 43 45
33 32 42
35 31 41

6 46
2

13
4
5 22
21
3
10
23
24
14
19
9 8
28
13 27
7 15

12
30
17 11 29
18

16
18

37

36

39

47

40
38

Upd:2014-08-13 4152 7742100 -21 -13873C

MD21B, AQD21B
 HeavyManuals.com
Cylinder Block: MD21B/110S
21

REF PART NO. QTY DESCRIPTION NOTES

1 (826827) 1 Cylinder block Obsolete part
2 (826662) 1 Plug Obsolete part
3 (826663) 1 Plug Obsolete part
4 (826664) 4 Plug Obsolete part
5 (818002) 4 Domed washer Obsolete part
6 (818003) 1 Domed washer Obsolete part
7 (818047) 1 Plug Obsolete part
8 (818227) 1 Shaft Obsolete part
9 (818491) 1 Plug Obsolete part
10 (818492) 1 Pin Obsolete part
11 818016 2 Gasket
12 (818498) 2 Locating pin Obsolete part
13 (818495) 2 Base Obsolete part
14 (826758) 2 Guide sleeve Obsolete part
15 (818497) 4 Locating pin Obsolete part
16 818500 10 Screw Replaced by 1ea 829999,1ea 830000,1 C 840160,1ea 818177, 1ea
818178., Repl by 840649
(840649) 10 Screw Obsolete part
17 818499 10 Spring washer Not included in 829999., Repl by 840649
18 5 bearing cap Not included in 829999.
19 818017 2 Sealing
20 (818493) 2 Stud Obsolete part
21 947899 1 Reduction nipple M0 3218828/XXXX-
22 957175 1 Gasket M0 3218828/XXXX-
23 16218 1 Elbow nipple
24 82744 1 Shut-off cock Used on crankshaft 826834.
25 (819118) 1 Flange Obsolete part
26 819119 1 Gasket
27 (826600) 1 Gasket Obsolete part
28 826514 1 Gasket
29 955271 4 Hexagon screw
30 941906 4 Spring washer
31 (818456) 2 Hatch Obsolete part
32 818457 2 Gasket
33 955269 10 Hexagon screw
34 955781 2 Hexagon nut
35 941906 12 Spring washer
36 (826925) 1 Intermediate plate Obsolete part
37 818240 1 Gasket
38 (946514) 1 Hexagon screw Obsolete part
39 (946515) 2 Hexagon screw Obsolete part
40 (826845) 4 Washer Obsolete part
43 826765 1 Gasket See group 4A
46 1 lift eye See group 4A
47 (946514) 1 Hexagon screw M0 3114784/XXXX-, Obsolete part

7742100- 21- 13873C 4152 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Crankshaft and Related Parts: MD21B/110S
21
MD21B, AQD21B

7 11A
8
6 8 3
2
9
11
4
10
11
5

13
12
14 20
19
12 20
18
17
15

37
36

21
23 22
30
14 29 31
16

25 19
24
19

28 34
33
32
27 35 26

Upd:2014-08-13 5569 7742100 -21 -13874

MD21B, AQD21B
 HeavyManuals.com
Crankshaft and Related Parts: MD21B/110S
21
MD21B, AQD21B

REF PART NO. QTY DESCRIPTION NOTES

1 829530 1 Cylinder liner kit
2 (829254) 4 Cylinder liner kit MO-3119179/XXXX, Obsolete part
(829532) 4 Piston MO3119180/XXXX-, Obsolete part
3 4 cylinder liner
4 (818001) 4 Sealing ring Not included in 829532., Obsolete part
5 4 piston
6 875377 4 Piston ring kit
7 4 compression ring
8 8 compression ring
9 4 oil scraper ring
10 (826841) 4 Piston pin Std D, Obsolete part
(826842) 4 Piston pin Over size 0,05mm, Obsolete part
(826843) 4 Piston pin Over size 0,010mm, Obsolete part
11 914515 8 Snap ring
11A (829520) X Adjusting washer kit 1ea 829520 consists of 4 shims., Obsolete part
12 (829308) 4 Connecting rod Repl early type marked: 5-4-3-2-1-A-B.If other marking is stamped
4ea 829308 have to be used., Marked 2, Obsolete part
13 (818029) 4 Bushing Std D, Obsolete part
(818277) 4 Bushing Over size 0,3mm, Obsolete part
14 (826835) 8 Screw Obsolete part
15 875302 1 Bearing shell kit Std D
(875303) 1 Bearing shell kit Under size 0,30mm, Obsolete part
875304 1 Bearing shell kit Under size 0,50mm
(875305) 1 Bearing shell kit Under size 0,80mm, Obsolete part
16 1 Replaced by 1ea 829999,1ea 830000,1 C 840160,1ea 818177, 1ea
818178.
(829999) 1 Crankshaft Obsolete part
17 (818177) 1 Bushing Not included in 829999., Obsolete part
18 818178 1 Sealing ring Not included in 829999.
19 (875306) 1 Bearing shell kit Std D, Obsolete part
(875307) 1 Bearing shell kit Under size 0,30mm, Obsolete part
(875308) 1 Bearing shell kit Under size 0,50mm, Obsolete part
(875309) 1 Bearing shell kit Under size 0,80mm, Obsolete part
20 (818262) 2 Washer Std D, Obsolete part
(818015) 2 Washer Over size 0,20mm, Obsolete part
21 (818223) 2 Key MO-3122138, Obsolete part
(947397) 2 Key MO3122139-, Obsolete part
22 (818030) 1 Gear Obsolete part
23 (818179) 1 Pulley Std, Obsolete part
24 (829036) 1 Lock nut Used on crankshaft 826834., (818019), Obsolete part
25 (15181) 1 Lock washer MO-3106775/XXXX, Obsolete part
26 (819296) 1 V-belt pulley Spec VERSION, Obsolete part
27 955300 4 Hexagon screw Spec VERSION
28 (826703) 1 Flywheel Obsolete part
29 (826708) 1 Gear ring Obsolete part
30 826768 6 Screw
31 (826769) 1 Lock washer Obsolete part
32 841892 1 Absorber AQD21A/250 and MD21A, MD21B with Volvo Penta reduction
reverse gear., (829476)
841893 1 Absorber AQD21A/270, AQD21A/280, AQD21B/280., (824991)
(841894) 1 Absorber MD21A/110S, MD21B/110S, MD21A, MD21B with BorgWarner
reverse gear and MS3 reverse gear., (829132), Obsolete part
33 941907 6 Spring washer
34 (102701) 6 Hexagon screw Obsolete part
35 941907 4 Spring washer
36 (830000) 1 Screw Used on crankshaft 829999., Obsolete part
37 (840160) 1 Spacer sleeve Used on crankshaft 829999., Obsolete part

7742100- 21- 13874 5569 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Camshaft and Valve Mechanism: MD21B/110S
21
MD21B, AQD21B

23

30 22
24
31 35 37
36 15
33
20
34 14
32A 26 29
32 27
25 12

18 28
21
19
11

13

16

17
10 9

6 7
5
4
2
41 44
59 42
60
57 55 43
38 39

40 48
3

58 46

45

49
47
51
50
54
53

52
56

Upd:2014-08-13 5352 7742100 -21 -13876

MD21B, AQD21B
 HeavyManuals.com
Camshaft and Valve Mechanism: MD21B/110S
21
MD21B, AQD21B

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (829838) 1 Camshaft Obsolete part
2 (818210) 1 Bearing flange Obsolete part
3 (818032) 1 Gear Obsolete part
4 (818223) 1 Key Obsolete part
5 955295 2 Hexagon screw
6 941907 2 Spring washer
7 (818248) 8 Tappet Obsolete part
8 (826781) 4 Inlet valve Obsolete part
9 826782 4 Exhaust valve
10 818061 8 Protecting ring
11 826783 8 Valve spring
12 (826784) 8 Valve spring Obsolete part
13 (818064) 8 Washer Obsolete part
14 826785 8 Washer
15 3848256 16 Valve collet
16 valve guide 13869
17 (818077) 8 Push rod Obsolete part
18 826787 8 Rocker arm MO-3130871/216681., Replaced by 4ea 840754 rocker arm
(right) + 4ea 840753 rocker arm (left) MO 3130872/216682-
19 (818070) 8 Screw Obsolete part
20 818071 8 Nut
21 829044 8 Bushing
22 826855 1 Shaft MO-3130871/216681., Repl by 840755
(840755) 1 Rocker arm shaft Obsolete part, MO 3130872/216682-.
23 (826520) 2 Plug Obsolete part
24 (818290) 1 Oil distributor Obsolete part
25 818069 1 Gasket
26 (818209) 1 Lock screw Obsolete part
27 190990 1 Gasket
28 (829222) 4 Bearing bracket Obsolete part
29 (818202) 4 Stud Obsolete part
30 (826521) 4 Nut Obsolete part
31 941908 4 Spring washer
32 (829328) 2 Bearing cap Obsolete part
32A (829329) 2 Support Obsolete part
33 955301 2 Hexagon screw
34 941907 2 Spring washer
35 (818285) 2 Spring Obsolete part
36 (818284) 2 Spring Obsolete part
37 (826795) 1 Washer Obsolete part
38 (818031) 1 Gear Obsolete part
39 (818218) 1 Bushing Obsolete part
40 (818219) 1 Washer Obsolete part
41 (942817) 1 Snap ring Obsolete part
42 (818227) 1 Shaft 13873 Obsolete part
43 (818491) 1 Plug 13873 Obsolete part
44 (818492) 1 Pin 13873 Obsolete part
45 (829305) 1 Gear Obsolete part
46 (826589) 1 Locating pin Obsolete part
47 (826576) 3 Screw Obsolete part
48 941907 3 Spring washer
49 (829065) 1 Companion flange Obsolete part, MO-XXXX/103386
(829277) 1 Companion flange Obsolete part, MOXXXX/103387-
50 955294 3 Hexagon screw MO-XXXX/103386
959219 3 Hex. socket screw MOXXXX/103387-
51 941907 3 Spring washer
52 1 timing gear cover Replaced by 1ea 829493, 1ea 833521, 1ea 957181.
MO-XXXX/103386
(829493) 1 Timing gear casing Obsolete part, MOXXXX/103387-
53 190798 1 Plug MO-XXXX/103386
1 rev. counter sender MOXXXX/103387-

7742100- 21- 13876 5352 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Camshaft and Valve Mechanism: MD21B/110S
21
MD21B, AQD21B

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

See group 3
54 957182 1 Gasket MO-XXXX/103386
1 o-ring MOXXXX/103387-
See group 3
55 818242 1 Gasket
56 (818034) 1 Sealing ring Obsolete part
57 947422 5 Hexagon screw L=50mm
58 (946481) 2 Hexagon screw Obsolete part, L=45mm
59 818071 6 Nut
60 (826845) 11 Washer Obsolete part

7742100- 21- 13876 5352 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Cylinder Head: MD21B/110S
21
MD21B, AQD21B

31
26
29 27
28
30
24

25 20 21 22

17 8
1 9
23 7
23
23 6
2 18 13

12
5

10
14

15
16

3
11

19

Upd:2014-08-13 4970 7742100 -21 -13869

MD21B, AQD21B
 HeavyManuals.com
Cylinder Head: MD21B/110S
21
MD21B, AQD21B

REF PART NO. QTY DESCRIPTION NOTES

1 1 MO-3124096/XXXX

(829856) 1 Cylinder head Obsolete part, MO

3124097/XXXX-3130871/216681.
(840641) 1 Cylinder head Obsolete part, MO
3130872/216682-.
2 8 valve guide Std
818053 8 Guide, valve guide Replaced by 818053., (818052)
Over size 0,13mm
818053 8 Guide Over size 0,29mm
(818054) 8 Guide Obsolete part, Over size 0,59mm
3 4 valve seat, intake Std
(818280) 4 Seat, valve seat Obsolete part, Over size 0,21mm
MO-3113975/XXXX
(829230) 4 Seat ring, valve seat Obsolete part, Over size 0,21mm
MO 3113976/XXXX-
(818281) 4 Valve seat, valve seat Obsolete part, Over size 0,51mm
MO-3113975/XXXX
(829231) 4 Seat ring, valve seat Obsolete part, Over size 0,51mm
MO 3113976/XXXX-
4 4 valve seat, exhaust Std
(818312) 4 Valve seat, valve seat Obsolete part, Over size 0,21mm
MO-3113975/XXXX
(829232) 4 Seat ring, valve seat Obsolete part, Over size 0,21mm
MO 3113976/XXXX-
(818313) 4 Valve seat, valve seat Obsolete part, Over size 0,51mm
MO-3113975/XXXX
(829233) 4 Valve seat, valve seat Obsolete part, Over size 0,51mm
MO 3113976/XXXX-
5 (818043) 2 Expansion plug Obsolete part,
MO-3120663/XXXX
6 (829784) 2 Cover Obsolete part,
MO3120664/XXXX-
7 (829785) 2 Gasket Obsolete part,
MO3120664/XXXX-
8 (946515) 6 Hexagon screw Obsolete part, MO
3120664/XXXX-
9 941907 6 Spring washer MO 3120664/XXXX-
10 941400 1 Expansion plug (814044)
11 (818045) 1 Expansion plug Obsolete part
12 (818046) 4 Plug Obsolete part
13 (818047) 1 Plug Obsolete part
14 4 emulsion housing Std
(826852) 4 Valve seat, emulsion housing Obsolete part, Over size 0,11mm
MO-3120663/XXXX
(829786) 4 Precombustion chambe, emulsion Obsolete part, Over size 0,11mm
housing
MO3120664/XXXX-
(826853) 4 Valve seat, emulsion housing Obsolete part, Over size 0,56mm
MO-3120663/XXXX
(829787) 4 Mixing chamber, emulsion housing Obsolete part, Over size 0,56mm
MO3120664/XXXX-
15 (826516) 4 Lock pin Obsolete part,
MO-3120663/XXXX
MO-3120663/XXXX
16 (829788) 4 Ball Obsolete part,
MO3120664/XXXX-
17 953058 8 Stud
18 (818202) 4 Stud Obsolete part
19 829214 1 Gasket MO-3119179/XXXX
829531 1 Gasket MO3119180/XXXX-
20 818049 7 Screw MO-3130871/216681.
7742100- 21- 13869 4970 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Cylinder Head: MD21B/110S
21
MD21B, AQD21B

REF PART NO. QTY DESCRIPTION NOTES

(840758) 7 Screw Obsolete part, MO
3130872/216682-., L=118mm
21 818050 7 Screw MO-3130871/216681.
(840757) 7 Screw Obsolete part, MO
3130872/216682-., L=109mm
22 (818048) 8 Screw Obsolete part,
MO-3130871/216681.
840756 8 Screw MO 3130872/216682-., L=91mm
23 818221 22 Washer MO-3130871/216681.
840650 22 Washer MO 3130872/216682-.
24 (829288) 1 Valve cover Obsolete part
25 819756 1 Gasket MO-3111829/XXXX
(829285) 1 Gasket Obsolete part,
MO3111830/XXXX-
26 (826643) 4 Lock nut Obsolete part
27 829063 4 Gasket
28 955894 4 Washer
29 (418954) 1 Vent cover Obsolete part
30 940096 1 Gasket
31 (826997) 1 Hose Obsolete part

7742100- 21- 13869 4970 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Lubricating System: MD21B/110S
21
MD21B, AQD21B

34 33

32

35
38

33

23
22

31
24

16 25
17
26
10 18 20
21 5
19
27 8 9
11
6

30 2 4 3

13
1
11
13
28 12
28
29 14
7
36
15

37

Upd:2014-08-13 4910 7742100 -21 -13870

MD21B, AQD21B
 HeavyManuals.com
Lubricating System: MD21B/110S
21
MD21B, AQD21B

REF PART NO. QTY DESCRIPTION NOTES

1 1 Oil pump Replaced by 1ea 840267 1ea 829556 1ea 829558 2ea
955274.
comp.not spec.
840267 1 Oil pump MO 3119298/XXXX-3130871/216681., Repl by 840647
840647 1 Oil pump MO 3130872/216682-.
components
2 (829060) 1 Set screw Obsolete part
3 941696 1 Cap nut
4 907132 1 Gasket
5 (818211) 1 Plug Obsolete part
6 (826848) 1 Set Obsolete part
7 1 oil sump Replaced by 1ea 840265,1ea 16374,3ea 957179,1ea
840266, 1ea 941686.
MO-3119297/XXXX
1 oil sump Replaced by 1ea 840265,1ea 16374,3ea 957179,1ea
840266, 1ea 941686., MO-3127923/XXXX
(840265) 1 Sump Obsolete part, MO3127924/XXXX-
8 15301 1 Gasket MO-3127923/XXXX
957179 1 Gasket MO3127924/XXXX-
9 (16376) 1 Plug Obsolete part, MO-3127923/XXXX
(16374) 1 Plug Obsolete part, MO3127924/XXXX-
10 818035 1 Gasket MO-3130871/216681., Repl by 840648
840648 1 Gasket MO 3130872/216682-.
11 (946515) 20 Hexagon screw Obsolete part
12 818071 2 Nut
13 (826845) 20 Washer Obsolete part
14 (818274) 1 Oil strainer Obsolete part, MO-3119297/XXXX
15 (829556) 1 Oil strainer Obsolete part, MO3119298/XXXX-
16 955268 3 Hexagon screw MO-3119297/XXXX
17 941906 3 Spring washer MO 3119298/XXXX-
18 (826771) 1 Oil pipe Obsolete part, MO-3119297/XXXX
19 (826511) 1 Nut Obsolete part, MO-3119297/XXXX
20 (826512) 1 Double ferrule Obsolete part, MO-3119297/XXXX
21 (826504) 1 Connector section Obsolete part, MO-3119297/XXXX
22 418432 1 Oil filter Early type
3581621 1 Oil filter Late type
23 (781732) 1 Nipple Obsolete part, Early type
829160 1 Nipple Late type
24 (829183) 1 Oil dipstick Obsolete part
25 818061 1 Protecting ring Early type
945615 1 O-ring Late type
26 (829182) 1 Tube Obsolete part
27 957178 1 Gasket
28 957181 2 Gasket MO-3127923/XXXX
957179 2 Gasket MO3127924/XXXX-
29 26013 1 Hollow screw MO-3127923/XXXX
941686 1 Hollow screw MO3127924/XXXX-
30 (826873) 1 Tube Obsolete part, MO-XXXX/82092
(829269) 1 Oil draining pipe Obsolete part, MO-3127923/XXXX
(840266) 1 Oil draining pipe Obsolete part, MO3127924/XXXX-
31 (826645) 1 Oil bilge pump Obsolete part, MO-XXXX/82092
1 oil bilge pump kit MO XXXX/82093-
See group 9
32 (826518) 1 Tube Obsolete part
33 11992 4 Gasket
34 (826519) 2 Screw Obsolete part
35 (818276) 1 Hose attachment Obsolete part
36 (829558) 1 Gasket Obsolete part, MO3119298/XXXX-
37 955274 2 Hexagon screw MO3119298/XXXX-
38 1 oil cooler and installation See group 2B
components

7742100- 21- 13870 4910 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Engine Suspension: A
21
AQD21B

10
11 9
13
14
13

15
12

4
17
16
5

7
2

Upd:2014-08-13 6695 7742100 -21 -13871

MD21B, AQD21B
 HeavyManuals.com
Engine Suspension: A
21
AQD21B

REF PART NO. QTY DESCRIPTION NOTES

1 (875261) 1 Engine bracket Obsolete part
2 (817919) 1 Support member Obsolete part
3 (905548) 3 Screw Obsolete part
4 (818073) 1 Protecting plate Obsolete part
5 (818072) 2 Rubber cushion Obsolete part
6 955296 4 Hexagon screw
7 960143 2 Washer
8 963107 2 Lock nut

7742100- 21- 13871 6695 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Engine Suspension: B
21
MD21B

10
11 9
13
14
13

15
12

4
17
16
5

7
2

Upd:2014-08-13 6695 7742100 -21 -13871B

MD21B, AQD21B
 HeavyManuals.com
Engine Suspension: B
21
MD21B

REF PART NO. QTY DESCRIPTION NOTES

9 1 bracket Replaced by 1ea 840539 bracket (8 holes), 9ea 941907 6ea 955297, 2ea
955298., P
(840539) 1 Bracket MO 202502-3130302/215732., Obsolete part
(840612) 1 Engine bracket MO 3130303/215733-., Obsolete part
(841386) 1 Bracket MO-3130302/215732., S.B, Obsolete part
10 955298 5 Hexagon screw
955298 2 Hexagon screw For bracket 829839 with 8 holes., Foraquamatic drive unit and Duoprop drive
unit.
955298 4 Hexagon screw MO 3130303/215733-.
955299 1 Hexagon screw MO-3130302/215732.
955297 6 Hexagon screw For bracket 829839 with 8 holes., Foraquamatic drive unit and Duoprop drive
unit.
11 941907 6 Spring washer
941907 9 Spring washer For bracket 829839 with 8 holes., Foraquamatic drive unit and Duoprop drive
unit.
120265 4 Washer MO 3130303/215733-.
941907 4 Spring washer MO 3130303/215733-.
12 834827 4 Rubber element
13 955805 8 Hexagon nut
14 829892 16 Lock washer
15 (841405) 1 Bracket P, Obsolete part
(841459) 1 Bracket S.B, Obsolete part
16 955341 4 Hexagon screw
17 940280 4 Spring washer

7742100- 21- 13871B 6695 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Engine Suspension: MD21B/110S
21

13 19
11
20

18
3
4 10

17
1
7
8

15
11
16
12
5
14
6 9 20
21

22

23

Upd:2014-08-13 5321 7742100 -21 -13872

MD21B, AQD21B
 HeavyManuals.com
Engine Suspension: MD21B/110S
21

REF PART NO. QTY DESCRIPTION NOTES

1 (851390) 1 Engine bracket S.B, Obsolete part
(851391) 1 Engine bracket P, Obsolete part
2 851467 2 Rubber element
3 955805 2 Hexagon nut
4 941912 2 Spring washer
5 955318 4 Hexagon screw
6 942336 4 Spring washer
7 959222 6 Hex. socket screw (955297)
8 941907 6 Spring washer
9 (851393) 2 Absorber Obsolete part
10 (851389) 2 Damper stop Obsolete part
11 955318 10 Hexagon screw
12 942336 4 Spring washer
13 941908 6 Spring washer
14 (851275) 1 Bracket Obsolete part
15 955318 2 Hexagon screw
16 942336 2 Spring washer
17 (851468) 1 Rubber cushion Obsolete part
18 (851314) 1 Bracket See group 4C, Obsolete part
19 946034 1 Lock nut
20 940280 2 Spring washer
21 955338 1 Hexagon screw
22 (851283) 1 Engine bed Obsolete part
23 850353 1 Cover plate

7742100- 21- 13872 5321 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Fuel System: MD21B/110S
23
MD21B, AQD21B

53B

53C
53D

53D

53A

53D

15 54
14
53
16 55

61
60 59
55
36
37
38 43 39
34 44
40
10 35 41
27
32 42
24 29 31
24 30
56
38A
33
47 48 51
22 52
24
45 46 50
57 24
27 25 27

26 26
24 28 49
13

24 26
26
12 23 21
1

2
17

12 13 13

13 13 12 58

18

8
19 9 3
4
20 6
5
11 6
7

Upd:2014-08-13 6385 7742100 -23 -13888

MD21B, AQD21B
 HeavyManuals.com
Fuel System: MD21B/110S
23
MD21B, AQD21B

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (829764) 1 Fuel filter, filter Obsolete part
13886
2 826550 1 Feed pump, fuel pump
13889
3 (818448) 1 Push rod Obsolete part
4 (818451) 1 O-ring Obsolete part
5 (818446) 1 Spacer flange Obsolete part
6 818447 2 Gasket
7 924060 2 Stud
8 955782 2 Hexagon nut
9 941907 2 Spring washer
10 (829902) 1 Tube Obsolete part
11 845646 1 Fuel hose (819054)
12 (818436) 2 Hollow screw Obsolete part, Early type
(818436) 3 Hollow screw Obsolete part, Late type
13 48588 4 Gasket Early type
48588 6 Gasket Late type
14 942400 1 Clamp
15 955295 1 Hexagon screw
16 820506 1 Spacer sleeve
17 (829375) 1 Fuel hose Obsolete part, Early type
845646 1 Fuel hose Late type
18 829146 1 Fitting
19 190962 2 Nipple
20 954322 2 Fitting nut
21 (829880) 1 Fuel pipe Obsolete part, Early type
(840353) 1 Fuel pipe Obsolete part, Late type
22 826798 1 Check valve
23 (829372) 1 Tap Obsolete part
24 18817 7 Gasket
25 (826802) 1 Hollow screw Obsolete part
26 957176 4 Gasket
27 818435 3 Hollow screw
28 (829879) 1 Fuel pipe Obsolete part
29 (826857) 4 Injector Obsolete part, MO-3130781/216681.
840644 4 Injector MO 3130872/216682-.
30 (826574) 4 Nozzle Obsolete part, Included in 826857.
31 (826914) 4 Pipe connection Obsolete part, Included in 826857.
32 (826740) 4 Gasket Obsolete part, Included in 826857.
33 817899 4 Gasket
34 (829134) 4 Flange Obsolete part
35 953058 8 Stud
36 955782 8 Hexagon nut
37 941907 8 Spring washer
38 120265 8 Washer
38A (840646) 1 Delivery pipe kit Obsolete part, MO 3130872/216682-.
39 (826858) 1 Tube Obsolete part, MO-3130781/216681., Cyl
NO.1
40 (826859) 1 Tube Obsolete part, MO-3130781/216681., Cyl
NO.2
41 (826860) 1 Tube Obsolete part, MO-3130781/216681., Cyl
NO.3
42 (826861) 1 Tube Obsolete part, MO-3130781/216681., Cyl
NO.4
43 956967 8 Ferrule MO-3130781/216681.
44 941521 8 Fitting nut MO-3130781/216681.
45 (818093) 2 Clamp Obsolete part
46 955228 2 Hexagon screw
47 955779 2 Hexagon nut
48 941904 2 Spring washer
49 (818092) 2 Clamp Obsolete part
50 955228 3 Hexagon screw
7742100- 23- 13888 6385 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Fuel System: MD21B/110S
23
MD21B, AQD21B

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

51 955779 3 Hexagon nut
52 941904 3 Spring washer
53 (829862) 1 Leak-off line Obsolete part, MO-3130781/216681.
53A (840759) 1 Leak-off line Obsolete part, MO 3130872/216682-.
53B (840751) 3 Leak-off line Obsolete part, MO 3130872/216682-.
53C (840752) 1 Rubber cap Obsolete part, MO 3130872/216682-.
53D 840761 9 Hose clamp MO 3130872/216682-.
54 (826539) 4 Screw Obsolete part
55 18811 8 Gasket
56 994555 1 Hose clamp MO-3130781/216681.
57 X bolt See group 2B
58 1 fuel injection pump 13885
and installation components
833971 1 Water separator 13887
connecting comps fuel filter - fuel See group 9
tank

59 404279 2 Attaching clamp

60 955272 1 Hexagon screw
61 963105 1 Lock nut

7742100- 23- 13888 6385 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Fuel Feed Pump
23

7
8

1 4
3
5
6
2 9

10

11
14
12
13
13
12 14
11 15
16
17

18

19

20

21
22
23
25
26

28 24

29

27
28

Upd:2014-08-13 4795 7742100 -23 -13889

MD21B, AQD21B
 HeavyManuals.com
Fuel Feed Pump
23

REF PART NO. QTY DESCRIPTION NOTES

1 826550 1 Feed pump
2 1 cover
3 1 cap
4 (829737) 1 Sieve kit Obsolete part
5 829300 1 Gasket
6 1 strainer
7 1 bolt
8 1 washer
9 6 bolt
10 6 washer
11 2 valve seat
12 2 valve
13 2 valve spring
14 2 retainer
15 1 nut
16 1 washer
17 1 washer
18 1 diaphragm
19 1 washer
20 1 spring
21 1 sleeve
22 1 washer
23 1 shaft
24 1 housing
25 1 lever
26 1 rivet
27 1 rivet
28 2 washer
29 1 lever
826550 1 Feed pump Repair kit replaced by complete pump 826550., (826217)

7742100- 23- 13889 4795 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Fuel Injection Pump with Installation Components: MD21B/110S
23
MD21B, AQD21B

23 32
28 27
25

28
8
2 26
3 25
10 9 29
36 33

24

31
35

30

4
7 1

34

6 5 11 15
22 18
12
13 14 20 19

17
21
16 22

19

Upd:2014-08-13 2157 7742100 -23 -13885

MD21B, AQD21B
 HeavyManuals.com
Fuel Injection Pump with Installation Components: MD21B/110S
23
MD21B, AQD21B

REF PART NO. QTY DESCRIPTION NOTES

1 (826760) 1 Injection pump MO-3130781/216681., Obsolete part
(840645) 1 Injection pump MO 3130872/216682-., Obsolete part
components
2 818234 1 Gasket
3 1 adapter Included in fuel injection pump.
4 1 gasket Included in fuel injection pump.
5 959240 2 Hex. socket screw
6 955895 2 Washer
7 941908 2 Spring washer
8 (100338) 1 Hexagon screw See group 2B, Obsolete part
9 955783 1 Hexagon nut See group 2B
10 955895 1 Washer See group 2B
11 3 stud Included in fuel injection pump.
12 955782 3 Hexagon nut Included in fuel injection pump.
13 3 spacer plate Included in fuel injection pump.
14 941907 3 Spring washer Included in fuel injection pump.
15 (826742) 1 Bracket Included in fuel injection pump., Obsolete part
16 955782 1 Hexagon nut Included in fuel injection pump.
17 941907 1 Spring washer Included in fuel injection pump.
18 (826846) 1 Bracket Obsolete part
19 955295 2 Hexagon screw
20 941907 1 Spring washer
21 955782 1 Hexagon nut
22 955894 2 Washer
23 (826529) 1 Support plate Included in fuel injection pump., See group 2D, Obsolete part
24 (826532) 1 Screw Included in fuel injection pump., Obsolete part
25 (818421) 1 Lever Included in fuel injection pump., MO 201055- are 840521 lever + 841275
cube + 946035 lock nut + 955271 screw + 955892 washer installed.,
Obsolete part
26 (826532) 1 Screw Included in fuel injection pump., Obsolete part
27 (826534) 1 Return spring Included in fuel injection pump., Obsolete part
28 (826535) 1 Lever Included in fuel injection pump., Obsolete part
29 (826525) 1 Screw Included in fuel injection pump., Obsolete part
30 (826527) 1 Drain cock Included in fuel injection pump., Obsolete part
31 (826526) 1 Drain cock Included in fuel injection pump., Obsolete part
32 814078 1 Cube MO-201054
841275 1 Cube MO 201055-
33 17276 1 Split pin See group 2D
34 (826913) 3 Screw Included in fuel injection pump., Obsolete part
35 (826886) 1 Hollow screw Included in fuel injection pump., Obsolete part
(826536) 1 Gasket kit Included in fuel injection pump., Obsolete part
36 (826530) 1 Banjo nipple Included in fuel injection pump., Obsolete part

7742100- 23- 13885 2157 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Fuel Filter: 875542
23

2
15
16 3 1
3A

5 6
4

8
10

14

14A

9
13

12

11

13

12

Upd:2014-08-13 6683 7742100 -23 -13886

MD21B, AQD21B
 HeavyManuals.com
Fuel Filter: 875542
23

REF PART NO. QTY DESCRIPTION NOTES

1 875542 1 Fuel filter Repl by 829764
2 192545 1 Hexagon screw
3 242605 1 Washer
4 1 filter cover
5 242359 2 Plug
6 242360 2 Washer
7 236628 1 Filter insert
8 1695001 1 Sealing ring
9 1695000 2 Sealing ring (236633)
10 236629 1 Rubber ring
11 1 base plate
12 826648 1 Plug
13 6643249 1 Gasket (242610)
14 818407 1 Reservoir Glas-Glass
15 (180723) 1 Screw Obsolete part
16 907132 1 Gasket

7742100- 23- 13886 6683 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Fuel Filter: 829764
23

2
15
16 3 1
3A

5 6
4

8
10

14

14A

9
13

12

11

13

12

Upd:2014-08-13 6683 7742100 -23 -13886B

MD21B, AQD21B
 HeavyManuals.com
Fuel Filter: 829764
23

REF PART NO. QTY DESCRIPTION NOTES

1 (829764) 1 Fuel filter Obsolete part
2 (6648590) 1 Centre bolt Obsolete part
3 (6648589) 1 Washer Obsolete part
3A 236570 1 O-ring
4 1 filter cover
5 242359 2 Plug
6 242360 2 Washer
7 236628 1 Filter insert
8 1695001 1 Sealing ring
9 1695000 1 Sealing ring (236633)
10 236629 1 Rubber ring
12 826648 1 Plug
13 6643249 1 Gasket (242610)
14A 1 housing
15 (180723) 1 Screw Obsolete part
16 957173 1 Gasket

7742100- 23- 13886B 6683 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Water Separator
23

1 3

4
2 5

6
7

9
14
15
16
10

11

12

13

Upd:2014-08-13 4183 7742100 -23 -13887

MD21B, AQD21B
 HeavyManuals.com
Water Separator
23

REF PART NO. QTY DESCRIPTION NOTES

1 833971 1 Water separator
2 1 housing
3 192545 1 Hexagon screw
4 955893 1 Washer
5 236570 1 O-ring
6 242360 2 Washer
7 242359 2 Plug
8 1695000 2 Sealing ring (236633)
9 829666 1 Filter insert
10 1 ring
11 1 housing
12 6643249 1 Gasket (242610)
13 826648 1 Plug
14 957176 2 Gasket
15 191397 2 Nipple For pipe with D=5/16''.
941438 2 Nipple For pipe with D=3/8''.
16 954322 2 Fitting nut For pipe with D=5/16''.
954323 2 Fitting nut For pipe with D=3/8''.

7742100- 23- 13887 4183 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Cooling System, Induction- and Exhaust Manifold: A
26
AQD21B

19
23
22
21 18A
20
24

25 25

28 18 30

30 25
27
25

26
13
29 31
14

15
16

27 14 32
17

10
6
9

12
3

7
8
11

Upd:2014-08-13 6383 7742100 -26 -13881

MD21B, AQD21B
 HeavyManuals.com
Cooling System, Induction- and Exhaust Manifold: A
26
AQD21B

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 1 circulation pump and installation components 13884

2 1 heat exchanger with thermostat and installation components 13883

3 1 sea water pump and installation components 13877

4 1 oil cooler with installation components 13882

5 1 sea water filter and installation components 13882

6 959437 2 Hex. socket screw

7 (423187) 2 Ring retainer Obsolete part
8 831617 2 Sealing ring
9 994559 2 Hose clamp
10 952971 X Hose L=50mm
11 (829878) 1 Tube Obsolete part
12 418412 1 Sealing ring
13 (180293) 1 Elbow nipple Obsolete part
14 961668 1 Hose clamp
15 952972 X Hose L=500mm
16 (825818) 1 Hose nipple Obsolete part
17 192134 1 Plug
31

7742100- 26- 13881 6383 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Cooling System, Induction- and Exhaust Manifold: B
26
MD21B

19
23
22
21 18A
20
24

25 25

28 18 30

30 25
27
25

26
13
29 31
14

15
16

27 14 32
17

10
6
9

12
3

7
8
11

Upd:2014-08-13 6383 7742100 -26 -13881B

MD21B, AQD21B
 HeavyManuals.com
Cooling System, Induction- and Exhaust Manifold: B
26
MD21B

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 1 circulation pump and installation components 13884

2 1 heat exchanger with thermostat and installation 13883

components

3 1 sea water pump and installation components 13877

4 1 oil cooler with installation components 13882

5 1 sea water filter and installation components 13882

6 959437 2 Hex. socket screw

7 (423187) 2 Ring retainer Obsolete part
8 831617 2 Sealing ring
9 994559 2 Hose clamp
10 952971 X Hose L=50mm
11 (829878) 1 Tube Obsolete part
12 418412 1 Sealing ring
13 (180293) 1 Elbow nipple Obsolete part
18 (828538) 1 Vacuum valve kit Obsolete part,
(828490)
18A (828534) 1 Vacuum valve Obsolete part
19 1 cover
20 947282 1 Gasket
21 1 screw union
22 828424 1 Gasket
23 1 Diaphragm
24 1 union pipe
25 961667 4 Hose clamp
26 (829925) 1 Attaching plate Obsolete part
27 952633 1 Clamp
28 955271 1 Hexagon screw
29 963105 1 Lock nut
30 952971 X Hose
31 1 induction- and exhaust manifold 13880

32 1 water cooled exhaust line See group 9

1 water cooled exhaust muffler See group 9

7742100- 26- 13881B 6383 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Cooling System, Induction- and Exhaust Manifold: MD21B/110S
26

19
23
22
21 18A
20
24

25 25

28 18 30

30 25
27
25

26
13
29 31
14

15
16

27 14 32
17

10
6
9

12
3

7
8
11

Upd:2014-08-13 6383 7742100 -26 -13881C

MD21B, AQD21B
 HeavyManuals.com
Cooling System, Induction- and Exhaust Manifold: MD21B/110S
26

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 1 circulation pump and installation components 13884

2 1 heat exchanger with thermostat and installation 13883

components

3 1 sea water pump and installation components 13877

4 1 oil cooler with installation components 13882

5 1 sea water filter and installation components 13882

6 959437 2 Hex. socket screw

7 (423187) 2 Ring retainer Obsolete part
8 831617 2 Sealing ring
9 994559 2 Hose clamp
10 952971 X Hose L=50mm
11 (829878) 1 Tube Obsolete part
12 418412 1 Sealing ring
13 (180293) 1 Elbow nipple Obsolete part
18 (828538) 1 Vacuum valve kit Obsolete part,
(828490)
18A (828534) 1 Vacuum valve Obsolete part
19 1 cover
20 947282 1 Gasket
21 1 screw union
22 828424 1 Gasket
23 1 Diaphragm
24 1 union pipe
25 961667 4 Hose clamp
26 (829925) 1 Attaching plate Obsolete part
27 952633 1 Clamp
28 955271 1 Hexagon screw
29 963105 1 Lock nut
30 952971 X Hose
31 1 induction- and exhaust manifold 13880

32 1 water cooled exhaust line See group 9

1 water cooled exhaust muffler See group 9

7742100- 26- 13881C 6383 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Oil Cooler and Sea Water Filter with Installation Components: A
26
MD21B

8
13

12

22 11
1
10

2 20
3 21 9

16
14

7 5 4 16 15

17

19
18

Upd:2014-08-13 5408 7742100 -26 -13882

MD21B, AQD21B
 HeavyManuals.com
Oil Cooler and Sea Water Filter with Installation Components: A
26
MD21B

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (829630) 1 Oil cooler, oil cooler Obsolete part
13879
2 817730 1 Gasket
3 945653 2 Gasket
4 955303 2 Hexagon screw L=65mm
955297 1 Hexagon screw L=25mm
5 941907 3 Spring washer
6 1 screw union See group 2A
7 418412 1 Sealing ring
8 842924 1 Strainer
9 1 housing
10 842723 1 Strainer
11 842724 1 Sealing
12 842982 1 Pressure plate
13 842722 1 Cover
14 842744 2 Sealing ring
15 829715 1 Connection pipe
21147599 1 Connection pipe Spec. 867598, 867599
16 (829716) 1 Connection pipe Obsolete part
(840526) 1 Connection pipe Obsolete part, Spec. 867598, 867599
17 829691 1 Retainer
18 955270 1 Hexagon screw
19 941906 1 Spring washer
20 955296 4 Hexagon screw
21 941907 4 Spring washer
22 X hose See group 4A

7742100- 26- 13882 5408 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Oil Cooler and Sea Water Filter with Installation Components: B
26
AQD21B

8
13

12

22 11
1
10

2 20
3 21 9

16
14

7 5 4 16 15

17

19
18

Upd:2014-08-13 5408 7742100 -26 -13882B

MD21B, AQD21B
 HeavyManuals.com
Oil Cooler and Sea Water Filter with Installation Components: B
26
AQD21B

REF PART NO. QTY DESCRIPTION NOTES

1 (829630) 1 Oil cooler, oil cooler Obsolete part
2 817730 1 Gasket
3 945653 2 Gasket
4 955303 2 Hexagon screw L=65mm
955297 1 Hexagon screw L=25mm
5 941907 3 Spring washer
6 1 screw union See group 2A
7 418412 1 Sealing ring
8 842924 1 Strainer
9 1 housing
10 842723 1 Strainer
11 842724 1 Sealing
12 842982 1 Pressure plate
13 842722 1 Cover
14 842744 2 Sealing ring
15 829715 1 Connection pipe
16 (829716) 1 Connection pipe Obsolete part
17 829691 1 Retainer
18 955270 1 Hexagon screw
19 941906 1 Spring washer
20 955296 4 Hexagon screw
21 941907 4 Spring washer
22 X hose See group 4A

7742100- 26- 13882B 5408 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Oil Cooler and Sea Water Filter with Installation Components:
26 MD21B/110S

8
13

12

22 11
1
10

2 20
3 21 9

16
14

7 5 4 16 15

17

19
18

Upd:2014-08-13 5408 7742100 -26 -13882C

MD21B, AQD21B
 HeavyManuals.com
Oil Cooler and Sea Water Filter with Installation Components:
MD21B/110S 26

REF PART NO. QTY DESCRIPTION NOTES

1 (829630) 1 Oil cooler, oil cooler Obsolete part
2 817730 1 Gasket
3 945653 2 Gasket
4 955303 2 Hexagon screw L=65mm
955297 1 Hexagon screw L=25mm
5 941907 3 Spring washer
6 1 screw union See group 2A
7 418412 1 Sealing ring
8 842924 1 Strainer
9 1 housing
10 842723 1 Strainer
11 842724 1 Sealing
12 842982 1 Pressure plate
13 842722 1 Cover
14 842744 2 Sealing ring
15 829715 1 Connection pipe
16 (829716) 1 Connection pipe Obsolete part
17 829691 1 Retainer
18 955270 1 Hexagon screw
19 941906 1 Spring washer
20 955296 4 Hexagon screw
21 941907 4 Spring washer
22 X hose See group 4A

7742100- 26- 13882C 5408 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Heat Exchanger with Thermostat and Installation Components:
26 MD21B/110S

MD21B, AQD21B

29
30
32

28

27

63
65 64

33
31

47 21
48
49 53 51
58 45 46 42
22
40
41

38 43

19 23
44
20
61
37

36 18
59 60
37 37

39
50 17
55
52
37

55 16
54
35
34 9
1
8
15
26
25
24
10
11
12
10

6 14
7 13
2

62
56

5
57

4
56
7
6

Upd:2014-08-13 5409 7742100 -26 -13883

MD21B, AQD21B
 HeavyManuals.com
Heat Exchanger with Thermostat and Installation Components:
MD21B/110S 26
MD21B, AQD21B

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (829868) 1 Heat exchanger Obsolete part
2 (829971) 1 End cover Obsolete part
3 829972 1 Gasket
4 (829973) 1 End cover Obsolete part
5 (829974) 1 Gasket Obsolete part
6 2
7 941907 2 Spring washer
8 (829870) 1 Riser Obsolete part
9 411168 1 Gasket
10 430020 4 Sealing ring
11 831897 2 Connection pipe
12 831914 2 Spacer sleeve
13 955305 2 Hexagon screw
14 941907 2 Spring washer
15 955894 2 Washer
16 1 Thermostat
17 416033 1 Sealing ring
18 (829869) 1 Thermostat housing Obsolete part
19 (833496) 1 Plug Obsolete part
20 957191 1 Gasket
21 955304 2 Hexagon screw
22 941907 2 Spring washer
23 829917 1 Hose coupling
24 955301 2 Hexagon screw
25 941907 2 Spring washer
26 (829961) 1 Bracket Obsolete part
27 (829980) 1 Bracket Obsolete part
28 (829981) 1 Tensioning band Obsolete part
29 942001 1 Hex. socket screw
30 955892 1 Washer
31 1276040 1 Expansion tank
32 844624 1 Pressure cap
33 942700 X Hose
34 (829877) 1 Tube Obsolete part
35 418411 1 Sealing ring
36 943369 X Rubber hose (836789)
37 994559 4 Hose clamp
38 (829876) 1 Tube Obsolete part
39 952971 X Hose L=50mm
40 (829925) 1 Attaching plate Obsolete part
41 952633 1 Clamp
42 955271 1 Hexagon screw
43 963105 1 Lock nut
44 418412 1 Sealing ring
45 (829871) 1 End cover Obsolete part
46 819727 1 Gasket 13880
47 800475 1 Plug
48 800476 1 Zinc electrode
49 (829964) 1 Bracket Obsolete part
50 955351 1 Hexagon screw L=90mm
51 955784 1 Hexagon nut
52 955328 1 Hexagon screw L=80mm
955319 1 Hexagon screw L=35mm
53 940280 1 Spring washer
54 955318 3 Hexagon screw L=30mm
55 941908 5 Spring washer
56 994559 2 Hose clamp
57 952971 X Hose L=50mm
58 (829965) 1 Cardboard tube Obsolete part
59 959222 2 Hex. socket screw
60 941907 2 Spring washer

7742100- 26- 13883 5409 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Heat Exchanger with Thermostat and Installation Components:
MD21B/110S 26
MD21B, AQD21B

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

61 955782 2 Hexagon nut
62 955318 1 Hexagon screw 13877
63 (829978) 2 Stud 13884 Obsolete part
64 960142 2 Washer
65 (826643) 2 Lock nut Obsolete part

7742100- 26- 13883 5409 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Circulation Pump and Installation Components: MD21B/110S
26
MD21B, AQD21B

14
12 15
17

16

2
9
13
15
17

8
11

10
4

13
3
15
17

Upd:2014-08-13 5652 7742100 -26 -13884

MD21B, AQD21B
 HeavyManuals.com
Circulation Pump and Installation Components: MD21B/110S
26
MD21B, AQD21B

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (826870) 1 Water pump Obsolete part
2 1 housing
3 826867 1 Pump shaft
4 181574 1 Ball bearing
5 181862 1 Ball bearing (181575)
6 826866 1 Washer kit
7 (818402) 1 Deflector ring Obsolete part
8 (826871) 1 Impeller Obsolete part
9 (826868) 1 Pulley Obsolete part
10 817776 1 Key
11 (945542) 1 Lock nut Obsolete part
12 819689 1 Gasket
13 (829978) 4 Stud Obsolete part
13883
14 (829979) 1 Stud Obsolete part
15 960147 5 Washer
16 817918 1 Gasket
17 (949782) 5 Lock nut Obsolete part
(875372) Repair kit Obsolete part

7742100- 26- 13884 5652 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Sea Water Pump with Installation Components: MD21B/110S
26
MD21B, AQD21B

9
8

16

12

13

6 3
2
7
1

6 15

14
5
4

11

10

Upd:2014-08-13 3724 7742100 -26 -13877

MD21B, AQD21B
 HeavyManuals.com
Sea Water Pump with Installation Components: MD21B/110S
26
MD21B, AQD21B

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 831178 1 Sea water pump, water pump
Bulletin P-26-6-5 P-26-6-5-EN New seawater pump kits
1 12779
2 925066 1 O-ring
3 831009 1 Cross piece
4 (829388) 1 Anchorage Obsolete part
5 955318 1 Hexagon screw L=30mm
955317 1 Hexagon screw L=25mm
6 941908 3 Spring washer
7 955328 1 Hexagon screw
8 (190503) 1 Washer Obsolete part
9 955783 1 Hexagon nut
10 955271 2 Hexagon screw
11 941906 2 Spring washer
12 925256 1 O-ring
13 (829277) 1 Companion flange Obsolete part, See group 2A
14 959219 3 Hex. socket screw
15 941907 3 Spring washer
16 1 timing gear cover See group 2A

7742100- 26- 13877 3724 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Sea Water Pump
26

8 1

15 5
2

19

7
4
16
9 14 18

12
13 12 10
17
11
9 14

Upd:2014-08-13 26663 7742100 -26 -12779

MD21B, AQD21B
 HeavyManuals.com
Sea Water Pump
26

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 831178 1 Sea water pump
Bulletin P-26-6-5 P-26-6-5-EN New seawater pump kits
2 (21951380) 1 Wear kit Obsolete part
3 (831180) 1 Cardboard tube Obsolete part
4 827010 1 Cam
5 Gasket
6 808285 1 Screw
7 1 Washer
8 826239 1 Pin
9 2 Bushing
10 (21951435) 1 Shaft kit Obsolete part
11 1 Shaft
12 827247 2 Sealing ring
13 960166 1 O-ring
14 2 Bushing
15 875575 1 Impeller kit replaced by next part number
21951350 1 Impeller kit
16 Impeller
17 808007 1 Woodruff key
18 21951318 1 Screw kit
19 804776 6 Screw

7742100- 26- 12779 26663 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Oil Cooler: 829630
26

13

2
12
9

10

5 6
3 4

7
11 8

Upd:2014-08-13 3460 7742100 -26 -13879

MD21B, AQD21B
 HeavyManuals.com
Oil Cooler: 829630
26

REF PART NO. QTY DESCRIPTION NOTES

1 (829630) 1 Oil cooler Obsolete part
2 1 housing
3 (819096) 1 Valve peg Obsolete part
4 (819095) 1 Spring Obsolete part
5 957176 1 Gasket
6 (829212) 1 Plug Obsolete part
7 824514 1 Insert
8 925092 2 O-ring
9 824522 1 Centre bolt
10 955983 1 O-ring
11 (829272) 1 End plate Obsolete part
12 (829084) 1 End plate Obsolete part
13 180759 1 Plug

7742100- 26- 13879 3460 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Induction- and Exhaust Manifold: A
26
AQD21B

14
27 15

16

30
19

9
22
7 6

25 23 25 8
24

12
21 11
17
26

5
1
12
10
2

18 3
4

20

29
13

28

29

Upd:2014-08-13 5412 7742100 -26 -13880

MD21B, AQD21B
 HeavyManuals.com
Induction- and Exhaust Manifold: A
26
AQD21B

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (817639) 1 Exhaust pipe Obsolete part
2 192212 2 Expansion plug
3 (819134) 2 Protecting sleeve Obsolete part
4 82744 1 Shut-off cock
5 180759 1 Plug
6 820271 3 Gasket
7 815844 2 Gasket
8 941588 4 Stud
9 953049 6 Stud
10 946036 4 Lock nut
11 946036 6 Lock nut
12 955894 10 Washer
13 819727 1 Gasket
14 (826917) 1 Muffler Obsolete part
15 955311 2 Hexagon screw
16 955894 2 Washer
18 818360 1 Exhaust riser
19 952078 1 Plug
20 (817847) 1 Exhaust pipe Spec VERSION, Obsolete part
21 819727 1 Gasket
22 4 (955317)
23 (924089) 1 Stud Obsolete part
24 963107 1 Lock nut
25 941908 5 Spring washer
26 (180293) 1 Elbow nipple 13881 Obsolete part
27 (826997) 1 Hose Obsolete part, See group 2A
28 952980 X Hose L=170mm
29 943480 2 Hose clamp (951797)
30 (829826) 1 Gasket Obsolete part
827259 1 Decal

7742100- 26- 13880 5412 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Induction- and Exhaust Manifold: B
26
MD21B

14
27 15

16

30
19

9
22
7 6

25 23 25 8
24

12
21 11
17
26

5
1
12
10
2

18 3
4

20

29
13

28

29

Upd:2014-08-13 5412 7742100 -26 -13880B

MD21B, AQD21B
 HeavyManuals.com
Induction- and Exhaust Manifold: B
26
MD21B

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (817639) 1 Exhaust pipe Obsolete part
2 192212 2 Expansion plug
3 (819134) 2 Protecting sleeve Obsolete part
4 82744 1 Shut-off cock
5 180759 1 Plug
6 820271 3 Gasket
7 815844 2 Gasket
8 941588 4 Stud
9 953049 6 Stud
10 946036 4 Lock nut
11 946036 6 Lock nut
12 955894 10 Washer
13 819727 1 Gasket
14 (826917) 1 Muffler Obsolete part
15 955311 2 Hexagon screw
16 955894 2 Washer
17 818359 1 Exhaust riser
19 952078 1 Plug
20 (817847) 1 Exhaust pipe Spec VERSION, Obsolete part
21 819727 1 Gasket
22 4 (955317)
23 (924089) 1 Stud Obsolete part
24 963107 1 Lock nut
25 941908 5 Spring washer
26 (180293) 1 Elbow nipple 13881 Obsolete part
27 (826997) 1 Hose Obsolete part, See group 2A
28 952980 X Hose L=170mm
29 943480 2 Hose clamp (951797)
30 (829826) 1 Gasket Obsolete part
827259 1 Decal

7742100- 26- 13880B 5412 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Induction- and Exhaust Manifold: MD21B/110S
26

14
27 15

16

30
19

9
22
7 6

25 23 25 8
24

12
21 11
17
26

5
1
12
10
2

18 3
4

20

29
13

28

29

Upd:2014-08-13 5412 7742100 -26 -13880C

MD21B, AQD21B
 HeavyManuals.com
Induction- and Exhaust Manifold: MD21B/110S
26

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (817639) 1 Exhaust pipe Obsolete part
2 192212 2 Expansion plug
3 (819134) 2 Protecting sleeve Obsolete part
4 82744 1 Shut-off cock
5 180759 1 Plug
6 820271 3 Gasket
7 815844 2 Gasket
8 941588 4 Stud
9 953049 6 Stud
10 946036 4 Lock nut
11 946036 6 Lock nut
12 955894 10 Washer
13 819727 1 Gasket
14 (826917) 1 Muffler Obsolete part
15 955311 2 Hexagon screw
16 955894 2 Washer
17 818359 1 Exhaust riser
19 952078 1 Plug
20 (817847) 1 Exhaust pipe Spec VERSION, Obsolete part
21 819727 1 Gasket
22 4 (955317)
23 (924089) 1 Stud Obsolete part
24 963107 1 Lock nut
25 941908 5 Spring washer
26 (180293) 1 Elbow nipple 13881 Obsolete part
27 (826997) 1 Hose Obsolete part, See group 2A
28 952980 X Hose L=170mm
29 943480 2 Hose clamp (951797)
30 (829826) 1 Gasket Obsolete part
827259 1 Decal

7742100- 26- 13880C 5412 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Engine Speed Control and Stop Control: MD21B/110S
27
MD21B, AQD21B

6
2
8
9
7
4 3

13 14

11
12
10

15
16
18

17

19

Upd:2014-08-13 2946 7742100 -27 -13890

MD21B, AQD21B
 HeavyManuals.com
Engine Speed Control and Stop Control: MD21B/110S
27
MD21B, AQD21B

REF PART NO. QTY DESCRIPTION NOTES

1 (829242) 1 Bracket Obsolete part
(840533) 1 Bracket MO 201005-, Obsolete part
2 819068 1 Washer
3 21471054 1 Bracket
4 X control cable See group 9
5 X control See group 9
6 950021 2 Cross recessed screw
7 956076 2 Cross recessed screw
8 814078 1 Cube MO-201054., See group 2C
841275 1 Cube MO 201055-., See group 2C
9 17276 1 Split pin See group 2C
10 (818470) 1 Push pull control Obsolete part
11 (829241) 1 Handle Obsolete part
12 955857 2 Hexagon nut
13 955950 2 Toothed washer
14 955844 1 Hexagon nut
15 829070 1 Cable lock 5/16'' - 18UNC
16 (950363) 1 Lock nut 5/16'' - 18UNC, Obsolete part
17 (818472) 1 Lock Obsolete part
18 956059 1 Cross recessed screw
19 (826529) 1 Support plate See group 2C, Obsolete part

7742100- 27- 13890 2946 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Electrical System and Instrument: MD21B/110S
30
MD21B, AQD21B

31
8
1 33

34
32
7
5
35
2
4
6 39
40

3 7 25

26
24 29

19 27
20
12 12A
12A
13 21

18
14 23
14A 28
17 16 22
15

52
57
11
54 55

53
56

10

41 45
48
9
47 49
43 44
30
42 4651 50

38
37

36

37A

Upd:2014-08-13 6375 7742100 -30 -13900

MD21B, AQD21B
 HeavyManuals.com
Electrical System and Instrument: MD21B/110S
30
MD21B, AQD21B

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 829712 1 Starter motor, starter motor 12V
Bulletin 44-12 44-12-EN Starter Motor for MD21/32
1 13897
(829649) 1 Starter motor, starter motor 24V, Obsolete part
13896
2 (826770) 1 Bracket Obsolete part
3 955339 1 Hexagon screw
4 963108 1 Lock nut
5 955317 3 Hexagon screw
6 955315 1 Hexagon screw
7 960148 4 Washer
8 955782 1 Hexagon nut
955780 1 Hexagon nut
9 alternator and installation 12V, 24V
components
13891

10 (823234) 1 Relay, charging relay Obsolete part, 24V

13891
11 (958236) 3 Cross recessed screw Obsolete part, 24V
12 824823 1 Fuse box
12A (831837) 2 Screw Obsolete part, MO-3130871/216681.
13 870670 1 Relay 12V
239883 1 Relay 24V
14 (958236) 2 Cross recessed screw Obsolete part
14A 960138 2 Washer
15 (829347) 1 Bracket Obsolete part
16 (946514) 2 Hexagon screw Obsolete part
17 941907 2 Spring washer
18 829637 1 Resistor MO-3130871/216681., 12V
(829638) 1 Resistor Obsolete part, 24V
19 827151 1 Temperature sensor
20 957181 1 Gasket
21 1266085 1 Pressure switch (672910)
22 1502028 1 Tachometer sensor
23 960169 1 O-ring
24 829857 4 Glow plug MO-3130871/216681., 12V
840643 4 Glow plug MO 3130872/216682-., 12V
(870681) 4 Glow plug Obsolete part, 24V
25 (829799) 3 Cable Obsolete part
26 (829858) 4 Protective cap Obsolete part
27 (829369) 1 Cable trunk Obsolete part
28 948210 X Cable tie (827353)
29 (843213) X Extension cable'verl Obsolete part, L=2500mm
843214 X Cable trunk L=7000mm
extension cable lift device See group 9

30 X cables and cable terminals 13899

31 (829442) 1 Instrument panel Obsolete part, For twin installation use 2ea
single instrument panels., 12V
13898
(829443) 1 Instrument panel Obsolete part, For twin installation use 2ea
single instrument panels., 24V
13898
32 (840013) 1 Instrument panel Obsolete part, Extra
33 (839128) 1 Plastic plug Obsolete part
34 944540 4 Screw
35 (827940) 1 Alarm kit Obsolete part, 12V, see group 9
(827941) 1 Alarm kit Obsolete part, 24V, see group 9
36 870980 1 Main switch
37 243700 1 Handle
7742100- 30- 13900 6375 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Electrical System and Instrument: MD21B/110S
30
MD21B, AQD21B

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

37A 955783 2 Hexagon nut
38 (821042) 1 Sign Obsolete part
39 955780 4 Hexagon nut
40 941905 4 Spring washer
41 (834397) 1 Voltmeter Obsolete part
42 (834374) 1 Voltmeter Obsolete part
43 19923 1 Bulb
44 808175 1 Lamp socket
45 (834398) 1 Instrument Obsolete part
46 (834376) 1 Instrument Obsolete part
47 19923 1 Bulb
48 808175 1 Lamp socket
49 881432 1 Sensor
50 834391 1 T-nipple
51 191026 1 Plug
52 (834401) 1 Rudder indicator Obsolete part
53 (834383) 1 Rudder indicator Obsolete part
54 19923 1 Bulb
55 808175 1 Lamp socket
56 837772 1 Position sensor
57 (834400) 1 Tank gauge, tank gauge drinking Obsolete part, See group 9
water

(834399) 1 Tank gauge, fuel Obsolete part, See group 9

7742100- 30- 13900 6375 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Alternator and Installation Components: MD21B/110S
30
MD21B, AQD21B

4
10

7 2 9
6 8

24 25

26

21

1A
23 16
22 18 20
17 19
14

14
13
11 15
12

Upd:2014-08-13 6377 7742100 -30 -13891

MD21B, AQD21B
 HeavyManuals.com
Alternator and Installation Components: MD21B/110S
30
MD21B, AQD21B

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 841380 1 Alternator 12V, MO-200254
13893
841770 1 Alternator MO 200255-3130302/215732., 14V
Bulletin 49-04 49-04-EN Alternators
1 13895
827303 1 Alternator, alternator 24V
13892
841765 1 Alternator MO 3130303/215733-., 14A
13894
1A 841811 1 Pulley MO 200255-3130302/215732.
2 (819911) 1 Bracket Obsolete part
3 (829387) 1 Bracket 24V, Obsolete part
4 (823234) 1 Relay 24V, Obsolete part
5 (958236) 3 Cross recessed screw 24V, Obsolete part
6 955295 3 Hexagon screw
7 (15287) 1 Washer Obsolete part
8 941907 1 Spring washer
9 955700 1 Hexagon screw
10 950375 1 Lock nut
11 807185 1 Tensioner
12 955298 1 Hexagon screw
13 191172 1 Washer
14 963106 2 Lock nut
15 955295 1 Hexagon screw
16 (826874) 1 Bracket Obsolete part
(829889) 1 Bracket For instrument panel 841094 and 841095., Obsolete
part
17 955295 1 Hexagon screw
1 bolt For instrument panel 841094 and 841095., See
group 2A
18 941907 1 Spring washer
955894 1 Washer For instrument panel 841094 and 841095., See
group 2A
19 (946514) 1 Hexagon screw See group 2A, Obsolete part
20 17896 1 Spring washer See group 2A
21 829207 1 V-belt
22 829311 1 Tab 24V
23 1 nut
24 940199 1 Hexagon screw
25 941907 1 Spring washer
26 X cables and cable terminals 13899

7742100- 30- 13891 6377 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Alternator: 827303
30

3 7 11

1 13
14
9

12

6
5
2

10

21 22

20
19

17

15

16

23

18
20

Upd:2014-08-13 4264 7742100 -30 -13892

MD21B, AQD21B
 HeavyManuals.com
Alternator: 827303
30

REF PART NO. QTY DESCRIPTION NOTES

1 827303 1 Alternator 24V 25A
2 (827565) 1 Cover Obsolete part
3 (827566) 1 Mounting kit Obsolete part
4 (825531) 1 Gasket Obsolete part
5 (825532) 1 Diode retainer For charging of 2 batteries use double diode set 825970., Obsolete part
6 (825566) 1 Set Obsolete part
7 (825527) 1 Carbon holder Obsolete part
8 (352749) 1 Repair kit Obsolete part
9 1 housing
10 (1560922) 1 Seal Obsolete part
11 (827568) 1 Screw kit Obsolete part
12 1 stator
13 (827563) 1 Diode retainer +, Obsolete part
14 (1517037) 1 Diode retainer (827569), Obsolete part
15 (827040) 1 Rotor Obsolete part
16 1 ball bearing
17 181800 1 Ball bearing
18 (825526) 1 Washer Obsolete part
19 1 housing
20 (465033) 1 Guide Obsolete part
21 (820460) 1 Fan Obsolete part
22 820459 1 Pulley
23 (1560928) 1 Mounting kit (825565), Obsolete part

7742100- 30- 13892 4264 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Alternator: 841380
30

4
5

19

16

17 18

2
3
9 7

10 11 8
15

12

14

13

Upd:2014-08-13 3945 7742100 -30 -13893

MD21B, AQD21B
 HeavyManuals.com
Alternator: 841380
30

REF PART NO. QTY DESCRIPTION NOTES

1 841380 1 Alternator 14V 35A
2 (831845) 1 End plate Obsolete part
3 181601 1 Ball bearing
4 (465033) 1 Guide Obsolete part
5 831846 1 Screw kit
6 1 rotor and stator
7 181797 1 Ball bearing
8 (831847) 1 End plate Obsolete part
9 (831848) 1 Protecting cover Obsolete part
10 (841575) 1 Diode kit For charging of 2 batteries,use charge distributor 831793, Obsolete part
11 (831851) 1 Screw kit Obsolete part
12 (831854) 1 Cover Obsolete part
13 (831855) 1 Fan Obsolete part
14 (834646) 1 Pulley Obsolete part
15 (831857) 1 Mounting kit For alternator with cast alloy fan., Obsolete part
16 (841688) 1 Governor Obsolete part
17 (955243) 2 Hexagon screw Obsolete part
18 941905 2 Spring washer
19 829311 1 Tab

7742100- 30- 13893 3945 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Alternator: 841765
30

1
18

2
3

6
7
5

10

9
15

16

14

11
8

17
20
21
22
23
12
13

19

Upd:2014-08-13 6263 7742100 -30 -13894

MD21B, AQD21B
 HeavyManuals.com
Alternator: 841765
30

REF PART NO. QTY DESCRIPTION NOTES

1 841765 1 Alternator
2 1 rotor
3 1 stator
4 840620 1 Mounting kit
5 840621 1 Fan
6 1 housing
7 840623 1 Ball bearing
8 1 housing
9 (840625) 1 Mounting kit Obsolete part
10 840626 1 Screw kit
11 840628 1 Diode retainer
12 (840629) 1 Bearing race Obsolete part
13 (840630) 1 Ball bearing Obsolete part
14 (840631) 1 Protecting casing Obsolete part
15 840633 1 Governor
16 840632 1 Brush retainer
17 840624 1 Nut set
18 841765 1 Alternator
19 840638 1 Junction block Not included in alternator 841765., For charging of 2 batteries.
20 955781 1 Hexagon nut Not included in alternator 841765.
21 949607 1 Spring washer Not included in alternator 841765.
22 955780 1 Hexagon nut Not included in alternator 841765.
23 941905 1 Spring washer Not included in alternator 841765.

7742100- 30- 13894 6263 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Alternator: 841770
30

4
5

19

16

17 18

2
3
9 7

10 11 8
15

12

20

14

13

Upd:2014-08-13 5665 7742100 -30 -13895

MD21B, AQD21B
 HeavyManuals.com
Alternator: 841770
30

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 841770 1 Alternator 14V 35A
Bulletin 49-04 49-04-EN Alternators
2 (831845) 1 End plate Obsolete part
3 181601 1 Ball bearing (831853)
4 (465033) 1 Guide Obsolete part
5 831846 1 Screw kit
6 1 rotor and stator
7 181797 1 Ball bearing
8 (831847) 1 End plate Obsolete part
9 (831848) 1 Protecting cover Obsolete part
10 (841575) 1 Diode kit For charging of 2 batteries,use charge distributor 831793,
Obsolete part
11 (831851) 1 Screw kit Obsolete part
12 (831854) 1 Cover Obsolete part
13 (831855) 1 Fan Obsolete part
14 (834646) 1 Pulley Obsolete part
15 (831857) 1 Mounting kit Obsolete part
16 (841688) 1 Governor Obsolete part
17 (955243) 2 Hexagon screw Obsolete part
18 941905 2 Spring washer
19 829311 1 Tab
20 955899 1 Washer

7742100- 30- 13895 5665 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Starter: 829649
30

31 30 33 32
27

6
11
10 31 29 34

28
34
7

2
8 3
4 5

9 23
22
24

34
16

12
34 19

18 17 15

26
25

34
20 14
13
21

Upd:2014-08-13 4626 7742100 -30 -13896

MD21B, AQD21B
 HeavyManuals.com
Starter: 829649
30

REF PART NO. QTY DESCRIPTION NOTES

1 (829649) 1 Starter motor Obsolete part
2 1 housing
3 4 pole terminal
4 (829701) 1 Field winding Obsolete part
5 (956130) 4 Cross recessed screw Obsolete part
6 (829696) 1 Drive bearing Obsolete part
7 (6645040) 1 Bushing Obsolete part
8 (6645020) 1 Engagement lever (829697), Obsolete part
9 6645036 1 Screw
10 829698 1 Washer
11 244110 1 Nut
12 (829699) 2 Screw Obsolete part
13 (86287) 2 Washer Obsolete part
14 955781 2 Hexagon nut
15 (829694) 1 Intermediate bearing Obsolete part
16 (829708) 1 Bushing Obsolete part
17 (829695) 1 Starter pinion Obsolete part
18 (829709) 2 Bushing Obsolete part
19 (829693) 1 Anchor Obsolete part
20 829704 1 Bearing shield
21 6644949 1 Bearing bushing
22 (1257687) 1 Brush retainer (829702), Obsolete part
23 4 Spring
24 (829706) 1 Carbon brush set Obsolete part
25 (829705) 1 Protecting casing Obsolete part
26 (233173) 2 Screw Obsolete part
27 6643967 1 Starter solenoid (829700)
28 (1328131) 3 Screw (6645031), Obsolete part
29 955791 3 Hexagon nut
30 955783 1 Hexagon nut
31 941908 2 Spring washer
32 956058 1 Cross recessed screw (241418)
33 (240499) 1 Washer (241601), Obsolete part
34 829707 1 Small parts kit

7742100- 30- 13896 4626 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Starter: 829712
30

1
11

21
10
27

18 24

12 25
14 20 9
28 15

26
19
13
16
6 23
22 3

17 2
8
7

5 4

Upd:2014-08-13 4577 7742100 -30 -13897

MD21B, AQD21B
 HeavyManuals.com
Starter: 829712
30

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 829712 1 Starter motor
Bulletin 44-12 44-12-EN Starter Motor for MD21/32
2 (834797) 1 Rotor Obsolete part
3 (829010) 1 Repair kit Obsolete part
4 (834798) 1 Starter pinion Obsolete part
5 (829012) 1 Set Obsolete part
6 834799 1 Washer
7 (829013) 1 Bearing housing Obsolete part
8 818147 1 Bushing
9 (829015) 1 Bearing Obsolete part
10 829016 1 Carbon brush set
11 (834807) 4 Spring kit Obsolete part
12 818162 1 Bushing
13 (826964) 1 Bellows Obsolete part
14 829023 1 Engagement lever
15 829028 1 Gasket
16 (834800) 1 Screw kit Obsolete part
17 829024 1 Shaft
18 1 housing
19 818157 4 Screw
20 (834801) 1 Field winding Obsolete part
21 (834802) 1 Isolation kit Obsolete part
22 (834803) 1 Intermediate bearing Obsolete part
23 834806 1 Bushing
24 (829017) 1 Protecting cover Obsolete part
25 826986 1 Gasket
26 829031 1 Nut set
27 834804 1 Actuator solenoid
28 834805 1 Gasket

7742100- 30- 13897 4577 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Instrument Panel: 829442
30

13
16

13
15
3

17
2 18

21 19

11 10
9

6 7 14 15

12

8 13

20

Upd:2014-08-13 5364 7742100 -30 -13898

MD21B, AQD21B
 HeavyManuals.com
Instrument Panel: 829442
30

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (829442) 1 Instrument panel Obsolete part
2 (829441) 1 Instrument panel Obsolete part
3 (836470) 1 Tachometer Obsolete part
4 (841233) 1 Thermometer (831475), Obsolete part
5 870621 1 Starter switch
6 (241383) 2 Key State key code when ordering, Early type replaced by
1ea 870621., Marked eE, Obsolete part
Bulletin P-36-4-1 P-36-4-1-EN Deleted Part No's for Keys
7 (827767) 1 Collar Obsolete part
8 (829169) 1 Nut Obsolete part
9 (875819) 1 Switch (837725), Obsolete part
10 843002 1 Nut (831526)
11 837726 1 Knob
12 827766 3 Lens
13 19923 5 Bulb
14 819350 3 Sleeve
15 808175 4 Lamp socket
16 (808174) 1 Lamp socket Obsolete part
17 944540 4 Screw
18 (833985) 1 Capacitor Obsolete part
19 (829415) 1 Cable trunk Obsolete part
X cables and cable 13899
terminals
20 948210 X Cable tie (827353)
21 845071 1 Plug

7742100- 30- 13898 5364 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Instrument Panel: 829443
30

13
16

13
15
3

17
2 18

21 19

11 10
9

6 7 14 15

12

8 13

20

Upd:2014-08-13 5364 7742100 -30 -13898B

MD21B, AQD21B
 HeavyManuals.com
Instrument Panel: 829443
30

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (829443) 1 Instrument panel Obsolete part
2 (829441) 1 Instrument panel Obsolete part
3 (836471) 1 Tachometer Obsolete part
4 (831477) 1 Thermometer Obsolete part
5 870621 1 Starter switch
6 (241383) 2 Key State key code when ordering, Early type replaced by
1ea 870621., Marked eE, Obsolete part
Bulletin P-36-4-1 P-36-4-1-EN Deleted Part No's for Keys
7 (827767) 1 Collar Obsolete part
8 (829169) 1 Nut Obsolete part
9 (875819) 1 Switch (837725), Obsolete part
10 843002 1 Nut (831526)
11 837726 1 Knob
12 827766 3 Lens
13 182059 5 Bulb
14 819350 3 Sleeve
15 808175 5 Lamp socket
17 944540 4 Screw
19 (829415) 1 Cable trunk Obsolete part
X cables and cable 13899
20 948210 X Cable tie (827353)
21 845071 1 Plug

7742100- 30- 13898B 5364 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Cables and Cable Terminals
30

1 2 3 4

6 7 8
5

9 10 11 12

13 14 15 16

17 18 19 20

21

22 24 26

23 25 27

28 29

Upd:2014-08-13 4852 7742100 -30 -13899

MD21B, AQD21B
 HeavyManuals.com
Cables and Cable Terminals
30

REF PART NO. QTY DESCRIPTION NOTES

1 cable
954443 X Electric cable, 5 sq mm black
954444 X Electric cable, 5 sq mm brown
954445 X Electric cable, 5 sq mm red
(954446) X Electric cable, 5 sq mm yellow Obsolete part
(954447) X Electric cable, 5 sq mm green Obsolete part
(954448) X Electric cable, 5 sq mm blue Obsolete part
(954449) X Electric cable, 5 sq mm grey Obsolete part
(954450) X Electric cable, 5 sq mm ivory Obsolete part
(961795) X Electric cable, 5 sq mm ivory/ blue Obsolete part

954451 X Electric cable, 5 sq mm black

(954452) X Electric cable, 5 sq mm brown Obsolete part
(954453) X Electric cable, 5 sq mm red Obsolete part
(954455) X Electric cable, 5 sq mm green Obsolete part
(954456) X Electric cable, 5 sq mm blue Obsolete part
(954458) X Electric cable, 5 sq mm ivory Obsolete part
X
954461 X Electric cable
(954464) X Electric cable Obsolete part
(954465) X Electric cable Obsolete part
954467 X Electric cable
954469 X Electric cable
(954471) X Electric cable Obsolete part
X
X
X
954485 X Electric cable
X
(954500) X Electric cable Obsolete part
954502 X Electric cable
2 (185501) X Hose D=9mm, i.d=8mm, Obsolete part
(185504) X Hose D=11,5mm, i.d=8mm, Obsolete part
(185506) X Hose Obsolete part, D=6mm, i.d=5mm
(185507) X Hose Obsolete part, D=11mm, i.d=10mm
(185508) X Hose Obsolete part, D=16mm, i.d=14mm
(185509) X Outer casing Obsolete part, D=19mm, i.d=15mm
3 948210 X Cable tie (827353) nylon
(335146) X Cable tie Obsolete part, Al
4 X
942659 X Terminal block
942660 X Terminal block
(942558) X Terminal block Obsolete part
(942661) X Terminal block Obsolete part
(942662) X Terminal block Obsolete part
5 182010 X Coupling piece Max 15mm²
190128 X Coupling piece Max 15mm²
190476 X Coupling piece Max 15mm²
(941412) X Coupling piece Obsolete part, Max 20mm²
6 (956924) X Cable terminal Obsolete part, Pour section cable 0,5-1,5
millimetre-carre, I.d=3,7mm D=5,6mm
7 881516 X Cable terminal Pour section cable 0,5-1,5 millimetre-carre, I.d=3,5mm
D=5,5mm
881492 X Cable terminal For cable area 1,5-2,5mm²., I.d=4,3mm D=8,7mm
881493 X Cable terminal For cable area 1,5-2,5mm²., I.d=5,2mm D=8,7mm
881508 X Cable terminal For cable area 1,5-2,5mm²., I.d=6,7mm D=11,9mm
881494 X Cable terminal For cable area 1,5-2,5mm²., I.d=8,3mm D=11,9mm
881504 X Cable terminal For cable area 1,5-2,5mm²., I.d=10,5mm D=15,9mm
881506 X Cable terminal For cable area 3,0-6,0mm²., I.d=4,3mm D=9,5mm
881495 X Cable terminal For cable area 3,0-6,0mm²., I.d=5,2mm D=9,5mm
881496 X Cable terminal For cable area 3,0-6,0mm²., I.d=6,7mm D=12,7mm

7742100- 30- 13899 4852 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Cables and Cable Terminals
30

REF PART NO. QTY DESCRIPTION NOTES

881497 X Cable terminal For cable area 3,0-6,0mm²., I.d=8,3mm D=12,7mm
881498 X Cable terminal For cable area 3,0-6,0mm²., I.d=10,5mm D=15,4mm
881500 X Cable terminal For cable area 10,5-16,0mm²., I.d=5,2mm D=15,9mm
881501 X Cable terminal For cable area 10,5-16,0mm²., I.d=6,7mm D=15,9mm
881502 X Cable terminal For cable area 10,5-16,0mm²., I.d=8,3mm D=15,9mm
881507 X Cable terminal For cable area 10,5-16,0mm²., I.d=10,5mm D=15,9mm
(949591) X Cable terminal Obsolete part, For cable area 6,5-10,5mm²., I.d=4,3mm
D=8mm
8 881483 X Cable terminal For cable area 1,5-2,5mm²., L=7,7mm b=7,6mm
881484 X Cable terminal For cable area 3,0-6,0mm²., L=7,7mm b=7,6mm
9 881485 X Cable terminal For cable area 1,5-2,5mm²., L=7,7mm b=7,6mm
881486 X Cable terminal D70B spec.867060. TD70B spec.867066. D70B
spec.867055 alt., L=7,7mm b=7,6mm
X For cable area 0,75-2,0mm²., L=7,7mm b=7,6mm
10 X Pour section cable 0,5-1,5 millimetre-carre, L=6,2mm
b=5,6mm
11 881491 X Cable terminal For cable area 1,5-2,5mm²., L=7,7mm b=7,6mm
12 881487 X Cable terminal For cable area 1,5-2,5mm²., L=15,7mm b=6,3mm
881488 X Cable terminal For cable area 3,0-6,0mm²., L=15,7mm b=6,3mm
13 881518 X Cable terminal For cable area 1,5-2,5mm²., L=10mm b=6,3mm
14 (881509) X Cable terminal Obsolete part, For cable area 1,5-2,5mm²., I.d=4,4mm
D=9,8mm
(881505) X Cable terminal Obsolete part, For cable area 1,5-2,5mm²., I.d=5,2mm
D=8,7mm
(881511) X Cable terminal Obsolete part, For cable area 3,0-6,0mm²., I.d=4,4mm
D=8mm
15 942429 X Cable terminal For cable area 1,5-2,5mm²., I.d=1,8mm L=14,4mm
X For cable area 3,0-6,0mm²., D=2,6mm L=20,6mm
16 956956 X Splice Pour section cable 0,5-1,5 millimetre-carre, L=26mm
956958 X Splice For cable area 1,5-2,5mm²., L=26mm
956960 X Splice For cable area 3,0-6,0mm²., L=28mm
17 829311 X Tab I.d=5,2mm b=6,35mm
18 959046 X Housing I.d=9mm
19 76614 X Rubber collar
(841234) X Rubber collar Obsolete part
20 673580 X Terminal cap
21 941269 X Plug D=25mm
22 958213 X Housing
23 958212 X Housing
24 (941104) X Housing Obsolete part
25 (941105) X Housing Obsolete part
26 945830 X Housing
27 945831 X Tab housing
28 1214948 X Housing
29 (949181) X Receptacle housing Obsolete part

7742100- 30- 13899 4852 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Connecting Components Reverse Gear Borg Warner
44
MD21B

26
30
28 29 24 32 31
30
29
30 18
31
41 29
42
25
29 30 2
28 26 40
13 11 19 1 27
34
9 8
38
10
8

36
37
13 14 23 35
12

6 7 3
7
5
16
15 17 20
4 39

33

21
22

Upd:2014-08-13 5659 7742100 -44 -13903

MD21B, AQD21B
 HeavyManuals.com
Connecting Components Reverse Gear Borg Warner
44
MD21B

REF PART NO. QTY DESCRIPTION NOTES

1 1 91:1
1 1:1 BW AS3-71CR
1 91:1 BW AS15-71CR
components
2 1 propeller shaft flange See group 9
3 (826738) 1 Flywheel housing Obsolete part
4 826765 1 Gasket See group 2A
5 940142 2 Hexagon screw L=30mm
6 955297 1 Hexagon screw L=25mm
7 955894 3 Washer
8 955318 2 Hexagon screw L=30mm
9 955895 1 Washer
10 1 lift eye See group 2A
11 (959667) 1 Hexagon screw Obsolete part, L=50mm see group 2A
12 (959671) 2 Hexagon screw Obsolete part, L=70mm see group 2A
13 940280 3 Spring washer See group 2A
14 (803921) 1 Gasket Obsolete part
15 (953081) 4 Stud Obsolete part
16 955783 4 Hexagon nut
17 941908 4 Spring washer
18 (829256) 1 Oil cooler Obsolete part
19 180759 2 Plug
20 (829083) 1 Bracket Obsolete part
21 955334 2 Hexagon screw
22 960148 2 Washer
23 943478 2 Hose clamp (951794)
24 (829187) 1 Hose attachment Obsolete part
25 (180293) 1 Elbow nipple Obsolete part, See group 2B
26 (829259) 2 Hose assembly Obsolete part, L=360mm
27 (804533) 1 Nipple Obsolete part
28 941757 2 Elbow nipple
29 956970 4 Ferrule
30 956984 4 Fitting nut
31 941799 X Hose L=1000mm
32 961669 2 Hose clamp
33 1 bracket kit Replaced by 831175 + 17276 + 804312 + 819067 + 819068 + 940191
+ 2ea 950021.
34 X control cable See group 9
35 (829252) 1 Elastic coupling Obsolete part, For reverse gear ratio 2,91:1, predrilled.
36 941909 4 Spring washer
37 940157 4 Hexagon nut
38 959241 6 Hex. socket screw
39 (819153) 1 Rubber coupling Obsolete part, See group 9
40 1 cooling water intake See group 9
41 (13430) X Rubber hose Obsolete part, L=150mm
42 994561 2 Hose clamp (951792)
1 coupling flange See group 9

7742100- 44- 13903 5659 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Connecting Components Reverse Gear MS3 Ratio 1, 91:1
44
MD21B

5 6

13 14

11 12
10

7 9 8
9

19

18

19

17

16

21
2

15

4
1 3
20

Upd:2014-08-13 4905 7742100 -44 -13904

MD21B, AQD21B
 HeavyManuals.com
Connecting Components Reverse Gear MS3 Ratio 1, 91:1
44
MD21B

REF PART NO. QTY DESCRIPTION NOTES

1 850413 1 Reversing gear
components See group 4B
2 (803921) 1 Gasket Obsolete part
3 955318 6 Hexagon screw
4 941908 6 Spring washer
5 (826738) 1 Flywheel housing Obsolete part
6 826765 1 Gasket See group 2A
7 940142 2 Hexagon screw L=30mm
8 955297 1 Hexagon screw L=25mm
9 955894 3 Washer
10 955318 1 Hexagon screw L=30mm
955319 1 Hexagon screw L=35mm
11 955895 1 Washer
12 1 lift eye
13 (959667) 1 Hexagon screw Obsolete part, L=50mm see group 2A
(959671) 2 Hexagon screw Obsolete part, L=70mm see group 2A
14 940280 3 Spring washer See group 2A
15 842913 1 Sealing ring
16 (843333) 1 Coolant pipe Obsolete part
17 955270 2 Hexagon screw
18 (851070) 1 Hose Obsolete part, L=460mm (13430)
19 994560 2 Hose clamp (951791)
20 (819105) 1 Clutch flange Obsolete part, Center drilled., See group 9
1 coupling flange See group 9
21 cooling water intake See group 9

7742100- 44- 13904 4905 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Connecting Components Reverse Gear MS3 Ratio 2, 91:1
44
MD21B

6 7
14 15

11 12 13

8 10
10 9
20
21
20

4 5
22

17
19
18
19
2

23 19 5
1 3
18
19
16

24

Upd:2014-08-13 6394 7742100 -44 -13905

MD21B, AQD21B
 HeavyManuals.com
Connecting Components Reverse Gear MS3 Ratio 2, 91:1
44
MD21B

REF PART NO. QTY DESCRIPTION NOTES

1 (851100) 1 Reversing gear Obsolete part
components See group 4B
2 (803921) 1 Gasket Obsolete part
3 955318 5 Hexagon screw
4 953063 1 Stud
5 941908 6 Spring washer
6 (826738) 1 Flywheel housing Obsolete part
7 826765 1 Gasket See group 2A
8 940142 2 Hexagon screw L=30mm
9 955297 1 Hexagon screw L=25mm
10 955894 3 Washer
11 955318 1 Hexagon screw L=30mm
955319 1 Hexagon screw L=35mm
12 955895 1 Washer
13 1 lift eye
14 (959667) 1 Hexagon screw Obsolete part, L=50mm see group 2A
(959671) 2 Hexagon screw Obsolete part, L=70mm see group 2A
15 940280 3 Spring washer See group 2A
16 (851723) 1 Coolant pipe Obsolete part
17 (851724) 1 Coolant pipe Obsolete part
18 (851725) 2 Hose Obsolete part
19 994561 4 Hose clamp
20 994560 2 Hose clamp
21 (13430) X Rubber hose Obsolete part, L=60mm
22 955783 1 Hexagon nut
23 (819105) 1 Clutch flange Obsolete part, Center drilled., See group 9
1 coupling flange See group 9
24 cooling water intake See group 9

7742100- 44- 13905 6394 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Connecting Components Reverse Gear MS3B
44
MD21B

7
14 15 6

12 13
11

21
16
20 18
19 8 10
10 9
4 5

17 26

25

1 26

5
3
23
24

22
27
24

28

Upd:2014-08-13 5821 7742100 -44 -13906

MD21B, AQD21B
 HeavyManuals.com
Connecting Components Reverse Gear MS3B
44
MD21B

REF PART NO. QTY DESCRIPTION NOTES

1 (852002) 1 Reversing gear Obsolete part
852003 1 Reversing gear Ratio 2,91:1
components See group 4B
2 (803921) 1 Gasket Obsolete part
3 955318 5 Hexagon screw
4 953063 1 Stud
5 941908 6 Spring washer
6 (826738) 1 Flywheel housing Obsolete part
7 826765 1 Gasket See group 2A
8 940142 2 Hexagon screw L=30mm
9 955297 1 Hexagon screw L=25mm
10 955894 3 Washer
11 955318 1 Hexagon screw L=30mm
955319 1 Hexagon screw L=35mm
12 955895 1 Washer
13 1 lift eye
14 (959667) 1 Hexagon screw Obsolete part, L=50mm see group 2A
(959671) 2 Hexagon screw Obsolete part, L=70mm see group 2A
15 940280 3 Spring washer See group 2A
16 (840351) 1 Anchorage Obsolete part
17 955783 1 Hexagon nut
18 952637 1 Clamp
19 955272 1 Hexagon screw
20 960140 1 Washer
21 963105 1 Lock nut
22 (840352) 1 Tube Obsolete part
23 949315 X Rubber hose L=70mm
24 994561 2 Hose clamp
25 (13430) X Rubber hose Obsolete part, L=150mm
26 994560 2 Hose clamp
27 (819105) 1 Clutch flange Obsolete part, Center drilled., See group 9
1 coupling flange See group 9
28 cooling water intake See group 9

7742100- 44- 13906 5821 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Connecting Components: MD21B/110S
44

9 10

2
8 1
7

4
3 5
6

12
11 15

14

13

16

17
18

Upd:2014-08-13 5317 7742100 -44 -13901

MD21B, AQD21B
 HeavyManuals.com
Connecting Components: MD21B/110S
44

REF PART NO. QTY DESCRIPTION NOTES

1 (851346) 1 Flywheel housing Obsolete part
2 826765 1 Gasket
3 (851241) 1 Stub axle Obsolete part
4 850345 1 Gasket
5 955297 1 Hexagon screw L=25mm
6 955894 1 Washer
7 955318 1 Hexagon screw L=30mm
8 1 lift eye
9 940142 2 Hexagon screw L=30mm
955319 1 Hexagon screw L=35mm
10 955895 1 Washer
955894 2 Washer
11 955322 6 Hexagon screw
12 955895 6 Washer
13 21389074 1 Rubber bellows
14 850079 1 Tensioning ring
15 946730 6 Hexagon screw
16 850353 1 Cover plate
17 850396 1 Propeller cone kit See group 4C
18 851773 1 Screw (949325)

7742100- 44- 13901 5317 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Connecting Components AQ Drive Unit 280
44
AQD21B

69
74
68 73
77 75

67

78
73 71 72

72 77 76
92 93 70

90
50
11
80 48 53
44 55
49
79 46 45
6

80 59
434241 81
54
47 58
10 15
37
16 17 50 9A 60 57
18
40
61 19 14

65 62
64 66
53
56 33
87
32 34
37
63 88 35
20 36

22 27
25 26

89

1
39
24 38
82
21 30 23
28 3
31 29
4

17B
2

85 12 17A

51 52 13
83

84
91 8
86 5
7
9

Upd:2014-08-13 6200 7742100 -44 -13902

MD21B, AQD21B
 HeavyManuals.com
Connecting Components AQ Drive Unit 280
44
AQD21B

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 875671 1 Shield
2 839441 1 Steering yoke
3 914169 1 Lubricating nipple
4 839195 1 Ring
Bulletin 48-23 48-23-EN Seal Ring
5 814640 2 Bushing
6 941872 2 Stud
7 897798 2 Shoulder screw
8 897244 2 Washer
9 943152 2 Nut
9A 850653 1 Bushing See group 6
10 832651 1 Bushing
11 832652 1 Bushing
12 (851267) 1 Protective helmet Obsolete part
13 851262 1 Bushing
14 832608 1 Plate
15 804269 2 Drive screw
16 (897744) 1 Plug Obsolete part
17 897745 1 Gasket
17A 852705 1 Pivot pin (851263)
17B 941807 2 Hex. socket screw
18 956568 2 Hex. socket screw See group 9
19 897726 1 Sealing strip
20 959967 4 Hexagon screw
21 925256 1 O-ring
22 (897782) 1 Exhaust grommet Obsolete part
23 850443 1 Exhaust bellows
24 961675 2 Hose clamp
25 843235 1 Exhaust pipe
26 (897744) 1 Plug Obsolete part
27 897745 1 Gasket
28 832598 1 Zinc anode
29 959438 2 Hex. socket screw
30 814301 1 Adjusting pin
31 814357 2 Flange nut
32 897831 2 Pivot pin
33 941873 2 Hex. socket screw
34 941670 2 Washer
35 826941 1 Mounting kit
36 813964 1 Spacer ring
37 813967 2 Rubber ring
38 191844 6 Hexagon screw
39 806624 3 Striker plate
40 875531 1 Rubber cushion
41 832565 2 Gasket
42 960142 2 Washer
43 950364 2 Lock nut
44 (850488) 1 Spindle arm Obsolete part
45 955537 1 Hexagon screw
46 940097 1 Washer
47 826819 1 Grommet
48 950352 2 Lock nut
49 955893 2 Washer
50 925063 1 O-ring
51 1 Hose
52 961668 2 Hose clamp
53 839091 1 Protecting hose
54 952635 1 Clamp
55 X control cable See group 9
56 897745 1 Gasket
57 943426 6 Screw

7742100- 44- 13902 6200 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Connecting Components AQ Drive Unit 280
44
AQD21B

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

58 850418 6 O-ring
59 190878 6 Washer
60 940176 6 Hexagon nut
61 (832641) 1 Spindle Obsolete part
62 11013 1 Ball bearing
63 914533 2 Snap ring
64 914462 1 Snap ring
65 946242 1 Sealing ring
66 958860 1 Sealing ring
67 (832764) 1 Flywheel housing Obsolete part
68 826765 1 Gasket See group 2A
69 (180019) 1 Lubricator Obsolete part
70 940142 2 Hexagon screw L=30mm
71 955297 1 Hexagon screw L=25mm
72 955894 3 Washer
73 955318 1 Hexagon screw S.B L=30mm
955319 1 Hexagon screw P L=35mm
74 955895 1 Washer
75 (959667) 1 Hexagon screw Obsolete part, L=50mm see group 2A
76 (959671) 2 Hexagon screw Obsolete part, L=70mm see group 2A
77 940280 3 Spring washer See group 2A
78 1 lift eye See group 2A
79 952980 X Hose L=170mm
80 943480 4 Hose clamp See group 2B
81 X cable and cable terminals See group 3
terminals
82 925055 4 O-ring
83 851766 1 Hose connection (832846) see group 4C
84 897824 1 Transport lock For transport.
85 944738 1 Plug For transport.
86 (827083) 1 Plastic plug Obsolete part, Used when separate exhaust outlet and
water intake is installed., See group 9
87 (814113) 1 Seal flange Obsolete part, Used when separate exhaust outlet and
water intake is installed., See group 9
88 942336 4 Spring washer Used when separate exhaust outlet and water intake
is installed., See group 9
89 814473 1 Closure Used when separate exhaust outlet and water intake
is installed., See group 9
90 (831237) 1 Seal flange Obsolete part, Used when separate exhaust outlet and
water intake is installed., See group 9
91 961669 1 Hose clamp Used when separate exhaust outlet and water intake
is installed., See group 9
92 941799 X Hose L=450mm
93 994561 2 Hose clamp
875192 1 Gasket kit See group 10

7742100- 44- 13902 6200 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3 Ratio 1, 92:1: 850413
44

1
8 64 65 66
25
99
9
6
23 20
3
7 24 60
4 61 63
100 14 19
15
14
18
5 17

10
10
96

16
93 14
15 62
95 14
13
12
11 11
92 22
21
8 9
2
95
54A 54 54B 57 58 59

51 54
50 27

45

49
94 52
37 53 55
41 84A
42 98 56
43 97 83 80
44
96 81
70 82
22
77 84
40 26
38 71 79
39 68 78
35

27 67 74
28
28A 75
29 69 89
33
36 30 73
76
34 72
48 91
47 88
10
32 101
46 85 90
31 102
87
86

Upd:2014-08-13 5039 7742100 -44 -13907

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3 Ratio 1, 92:1: 850413
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 850413 1 Reversing gear Ratio 1,92:1
2 (850414) 1 Gear housing Obsolete part
3 832668 1 Cover
4 956585 3 Hex. socket screw
5 832669 1 Gasket
6 814643 1 Hollow screw
7 955989 1 O-ring
8 943866 X Shim TH=0.1mm
943867 X Shim TH=0.2mm
943868 X Shim TH=0.4mm
9 183729 2 Ball bearing
10 839027 1 Gear set
11 897312 2 Lock ring
12 850422 1 Spacer ring
13 852433 1 Wear washer (850243)
14 181359 4 Needle roller assemb
15 (897308) 2 Spacer ring Obsolete part
16 897385 1 Shaft
17 951077 1 Snap ring
18 26411 1 Shim
19 813970 1 Spring
20 852548 1 Sliding sleeve
21 850433 1 Snap ring
22 949071 X Shim TH=0.1mm
949072 X Shim TH=0.15mm
949073 X Shim TH=0.35mm
949074 X Shim TH=0.50mm
23 832644 1 Bearing sleeve
24 946179 1 Shim TH=0.1mm
943870 Shim TH=0.2mm
25 1 nut
839332 Nut Alt TH=2,10mm
839333 Nut Alt TH=2,37mm
839334 Nut Alt TH=2,65mm
26 (184165) 1 Roller bearing Obsolete part
27 (850415) 1 Gear set Obsolete part
28 181303 1 Inner ring (183840)
28A 181304 1 Cup (183840)
29 87655 X Shim TH=0.1mm
191840 X Shim TH=0.15mm
87654 X Shim TH=0.35mm
30 925256 1 O-ring
31 (850272) 1 Bearing cover Obsolete part
32 946329 4 Flange screw
33 957173 1 Gasket
34 960628 1 Plug
35 875425 1 Bearing box
36 951940 1 Spring pin
37 183247 1 Roller bearing
38 183668 1 Roller bearing
39 897772 1 Oil deflector
40 925256 1 O-ring
41 941826 X Shim TH=0,05mm
941827 X Shim TH=0.2mm
948230 X Shim TH=0.35mm
42 839253 1 Sealing ring
43 914538 1 Snap ring
44 832675 1 Washer
45 956000 1 O-ring
46 943871 X Shim TH=0,05mm
943872 X Shim TH=0.1mm

7742100- 44- 13907 5039 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3 Ratio 1, 92:1: 850413
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

943873 X Shim TH=0.2mm
47 839013 1 Washer
48 (851293) 1 Screw (945090), Obsolete part
49 850275 1 Stub axle
50 (850276) 1 Intermediate section Obsolete part
51 965185 6 Flange screw
52 925096 1 O-ring
53 (850472) X Adjusting washer TH=0.1mm, Obsolete part
850473 X Adjusting washer TH=0.15mm
(850474) X Adjusting washer TH=0.35mm, Obsolete part
54 183668 2 Roller bearing
54A (851114) 1 Spacer ring BN1805-, Obsolete part
54B 84219 1 Shim BN1805- TH=0,1mm
54 84218 1 Shim BN1805- TH=0,35mm
55 (850269) 1 Bearing housing Obsolete part
56 946671 1 Flange screw
57 925256 1 O-ring
58 958879 1 Sealing ring
59 125018 1 O-ring
60 (850270) 1 Cover Obsolete part
61 955297 4 Hexagon screw
62 925069 1 O-ring
63 850417 1 Slip clutch
components
64 (400870) X Shim BN-1804 TH=0,1mm, Obsolete part
(400871) X Shim BN-1804 TH=0,15mm, Obsolete part
(949070) X Shim BN-1804 TH=0,35mm, Obsolete part
65 850471 1 Washer
66 947855 1 Flange lock nut
67 839504 1 Shift mechanism
68 839505 1 Bearing housing
69 897816 1 Eccentric piston
Bulletin P-44-1-7 P-44-1-7-EN Shift mechanism, eccentric piston
70 814603 1 Dog
71 814184 1 Spring
72 897711 1 Hexagon screw
73 897871 X Shim TH=0.2mm
74 958838 1 Sealing ring (941866)
75 951924 1 Spring pin
76 942871 1 Clevis pin
77 925093 1 O-ring
78 955273 4 Hexagon screw
79 941906 4 Spring washer
80 (850350) 1 Cable attachment Obsolete part
81 819068 1 Washer
82 21471054 1 Bracket
83 946577 2 Lock nut (940092)
84 955246 2 Hexagon screw (950022)
84A 940090 2 Washer
85 852363 1 Intermediate lever (834021)
86 955781 2 Hexagon nut
87 955948 2 Toothed washer
88 955270 2 Hexagon screw
89 804312 1 Cube
90 955892 1 Washer
91 17276 1 Split pin
92 (850741) 2 Insert Obsolete part
93 850742 1 End cover
94 (850833) 1 End cover (850743), Obsolete part
95 942353 4 O-ring
96 955276 6 Hexagon screw

7742100- 44- 13907 5039 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3 Ratio 1, 92:1: 850413
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

97 804107 1 Zinc electrode
98 800475 1 Plug
99 839351 1 Oil dipstick
100 955974 1 O-ring
101 897682 1 Gasket
102 814179 1 Plug
875628 Gasket kit

7742100- 44- 13907 5039 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3 Ratio 2, 91:1: 851100
44

8 1 68
26 69
104
6 9
4 24
7 20
105 25
3
14 19 67
15
14
18
5 17

10
100 10

16
96
14 65 66
99 15
14
13
12
11 11
95 22
21
8 9
98 2
58 57 59 62 63 64

54 53 29 57

48
52
97
55 56
44 40 60
45 86 61
46 22 83
47
73 84
85
23
80 87
43
41 101 27
42 102 74 82
38 28 81
103
29 71 70 77
30
31 78 72
32 92
36 75
39 33 76
79
51 94
50 37 91
10
49 35 106
88
34 107 93
90
89

Upd:2014-08-13 27016 7742100 -44 -13908

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3 Ratio 2, 91:1: 851100
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (851100) 1 Reversing gear Ratio 2,91:1, Obsolete part
2 (851145) 1 Gear housing Obsolete part
3 832668 1 Cover
4 956585 3 Hex. socket screw
5 832669 1 Gasket
6 814643 1 Hollow screw
7 955989 1 O-ring
8 943866 X Shim TH=0.1mm
943867 X Shim TH=0.2mm
943868 X Shim TH=0.4mm
9 183729 2 Ball bearing
10 839027 1 Gear set
11 897312 2 Lock ring
12 850422 1 Spacer ring
13 852433 1 Wear washer (850243)
14 181359 4 Needle roller assemb
15 (897308) 2 Spacer ring Obsolete part
16 897385 1 Shaft
17 951077 1 Snap ring
18 26411 1 Shim
19 813970 1 Spring
20 852548 1 Sliding sleeve
21 850433 1 Snap ring
22 949071 X Shim TH=0.1mm
949072 X Shim TH=0.15mm
949073 X Shim TH=0.35mm
949074 X Shim TH=0.50mm
23 (851539) 1 Spacer ring Obsolete part
24 832644 1 Bearing sleeve
25 946179 1 Shim TH=0.1mm
943870 1 Shim TH=0.2mm
26 1 nut
839332 Nut Alt TH=2,10mm
839333 Nut Alt TH=2,37mm
839334 Nut Alt TH=2,65mm
27 181301 1 Inner ring
28 181302 1 Cup
29 (851107) 1 Gear set Obsolete part
30 181303 1 Inner ring, cone
31 181304 1 Cup, cup
32 87655 X Shim TH=0.1mm
191840 X Shim TH=0.15mm
87654 X Shim TH=0.35mm
33 925258 1 O-ring
34 (851144) 1 Bearing cover Obsolete part
35 955318 4 Hexagon screw
36 957173 1 Gasket
37 960628 1 Plug
38 875425 1 Bearing box
39 951940 1 Spring pin
40 183247 1 Roller bearing
41 183668 1 Roller bearing
42 897772 1 Oil deflector
43 925256 1 O-ring
44 941826 X Shim TH=0,05mm
941827 X Shim TH=0.2mm
948230 X Shim TH=0.35mm
45 839253 1 Sealing ring
46 914538 1 Snap ring
47 832675 1 Washer
48 956000 1 O-ring

7742100- 44- 13908 27016 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3 Ratio 2, 91:1: 851100
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

49 943871 X Shim TH=0,05mm
943872 X Shim TH=0.1mm
943873 X Shim TH=0.2mm
50 839013 1 Washer
51 (851293) 1 Screw Obsolete part
52 850275 1 Stub axle
53 (850276) 1 Intermediate section Obsolete part
54 965185 6 Flange screw
55 925267 1 O-ring
56 (851494) X Adjusting washer Obsolete part, TH=0.1mm
851495 X Adjusting washer TH=0.15mm
(851496) X Adjusting washer Obsolete part, TH=0.35mm
57 183668 2 Roller bearing
84218 1 Shim TH=0.35mm
58 (851577) 1 Spacer sleeve Obsolete part
59 84219 1 Shim TH=0.1mm
60 (851143) 1 Bearing housing Obsolete part
61 946671 6 Flange screw
62 925095 1 O-ring
63 958880 1 Sealing ring
64 125018 1 O-ring
65 914540 1 Snap ring
66 925069 1 O-ring
67 850417 1 Slip clutch
components
68 850471 1 Washer
69 947855 1 Flange lock nut
70 839504 1 Shift mechanism
71 839505 1 Bearing housing
72 897816 1 Eccentric piston
Bulletin P-44-1-7 P-44-1-7-EN Shift mechanism, eccentric piston
73 814603 1 Dog
74 814184 1 Spring
75 897711 1 Hexagon screw
76 897871 X Shim TH=0.2mm
77 958838 1 Sealing ring (941866)
78 951924 1 Spring pin
79 942871 1 Clevis pin
80 925093 1 O-ring
81 955273 4 Hexagon screw
82 941906 4 Spring washer
83 (850350) 1 Cable attachment Obsolete part
84 819068 1 Washer
85 21471054 1 Bracket
86 940092 2 Hexagon nut
87 (950022) 2 Cross recessed screw Obsolete part
88 852363 1 Intermediate lever (834021)
89 955781 2 Hexagon nut
90 955948 2 Toothed washer
91 955270 2 Hexagon screw
92 804312 1 Cube
93 955892 1 Washer
94 17276 1 Split pin
95 (851525) 1 Oil cooler Obsolete part
96 (851537) 1 End cover Obsolete part
97 (851538) 1 End cover Obsolete part
98 942353 1 O-ring
99 851531 2 Gasket
100 940326 3 Hex. socket screw
101 955278 2 Hexagon screw
102 804107 1 Zinc electrode

7742100- 44- 13908 27016 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3 Ratio 2, 91:1: 851100
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

103 800475 1 Plug
104 839351 1 Oil dipstick
105 955974 1 O-ring
106 897682 1 Gasket
107 814179 1 Plug
875628 Gasket kit See group 10A

7742100- 44- 13908 27016 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3B: 852102
44

1
8 63
64
25
97
9
6 23 20
3 24
7 61
4 14
98 19
15
14 18
5 17 62

10
10

16
14 62A
62C 62B
15
14
13
12
11 11
22
21
8 9
2 54A
50 50A 91 54B 54 60 58 59 57

52
90 54C
51 45 54D
27

94

49
92 53
22A 95 55
37 77 56
41 93 77A 81 81A
42 96
43
44 79
22
80
68
82
75
40 26
38 69 77
26A
39 76
66
35

27 65 72
78
28
29 73
67
30 33 34 71 87
70 89
36 74
48
47
10 86
32 99 83 88
46 31 100 85
84

Upd:2014-08-13 6660 7742100 -44 -13909

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3B: 852102
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (852102) 1 Reversing gear Ratio 1,93:1, Obsolete part
2 (851673) 1 Gear housing Obsolete part
3 832668 1 Cover
4 956585 3 Hex. socket screw
5 832669 1 Gasket
6 814643 1 Hollow screw
7 955989 1 O-ring
8 943866 X Shim TH=0.1mm
943867 X Shim TH=0.2mm
943868 X Shim TH=0.4mm
9 183729 2 Ball bearing
10 839027 1 Gear set
11 897312 2 Lock ring
12 850422 1 Spacer ring
13 852433 1 Wear washer (850243)
14 181359 4 Needle roller assemb
15 (897308) 2 Spacer ring Obsolete part
16 897385 1 Shaft
17 951077 1 Snap ring
18 26411 1 Shim
19 813970 1 Spring
20 852548 1 Sliding sleeve
21 850433 1 Snap ring
22 949071 X Shim TH=0.1mm
949072 X Shim TH=0.15mm
949073 X Shim TH=0.50mm
949074 X Shim TH=0.50mm
23 832644 1 Bearing sleeve
24 946179 X Shim TH=0.1mm
943870 X Shim TH=0.2mm
25 1 nut
839332 Nut Alt TH=2,10mm
839333 Nut Alt TH=2,37mm
839334 Nut Alt TH=2,65mm
26 181301 1 Inner ring
26A 181302 1 Cup
27 (851715) 1 Drive gear set Obsolete part
28 181303 1 Inner ring
29 181304 1 Cup
30 941835 X Shim TH=0,05mm
87655 X Shim TH=0.1mm
191840 X Shim TH=0.15mm
87654 X Shim TH=0.35mm
31 (851697) 1 Bearing cover Obsolete part
32 946329 4 Flange screw
33 957173 1 Gasket
34 960628 1 Plug
35 875425 1 Bearing box
36 951940 1 Spring pin
37 183247 1 Roller bearing
38 183668 1 Roller bearing
39 897772 1 Oil deflector
40 925256 1 O-ring
41 941826 X Shim TH=0,05mm
941827 X Shim TH=0.2mm
948230 X Shim TH=0.35mm
42 839253 1 Sealing ring
43 914538 1 Snap ring
44 832675 1 Washer
45 956000 1 O-ring
46 943871 X Shim TH=0,05mm

7742100- 44- 13909 6660 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3B: 852102
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

943872 X Shim TH=0.1mm
943873 X Shim TH=0.2mm
47 839013 1 Washer
48 (851293) 1 Screw Obsolete part
49 850275 1 Stub axle
50 (850276) 1 Intermediate section Obsolete part
50A 925257 1 O-ring
51 965185 6 Flange screw
52 925267 1 O-ring
53 (851494) X Adjusting washer TH=0.1mm, Obsolete part
851495 X Adjusting washer TH=0.15mm
(851496) X Adjusting washer TH=0.35mm, Obsolete part
54 183668 1 Roller bearing
54A (851699) 1 Spacer sleeve Obsolete part
54B 852184 X Shim TH=0,05mm
54 84219 X Shim TH=0.1mm
84218 X Shim TH=0.35mm
54C 183328 1 Cup
54D 183327 1 Inner ring
55 (851678) 1 Bearing housing Obsolete part
56 946671 6 Flange screw
57 944530 1 Sealing ring
58 851679 1 Spacer sleeve
59 959026 1 Sealing ring
60 925063 1 O-ring
61 (852072) 1 Slip clutch Obsolete part
62 925069 1 O-ring
62A 925092 1 O-ring
62B 925263 2 O-ring
62C 955299 8 Hexagon screw
63 850471 1 Washer
64 947855 1 Flange lock nut
65 839504 1 Shift mechanism
66 839505 1 Bearing housing
67 897816 1 Eccentric piston
Bulletin P-44-1-7 P-44-1-7-EN Shift mechanism, eccentric piston
68 814603 1 Dog
69 814184 1 Spring
70 897711 1 Hexagon screw
71 897871 X Shim TH=0.2mm
72 958838 1 Sealing ring
73 951924 1 Spring pin
74 942871 1 Clevis pin
75 925093 1 O-ring
76 955273 4 Hexagon screw
77 941906 8 Spring washer
77A 942000 2 Hex. socket screw
78 (850350) 1 Cable attachment Obsolete part
79 819068 1 Washer
80 21471054 1 Bracket
81 946577 2 Lock nut
81A 940090 2 Washer
82 955246 2 Hexagon screw
83 852363 1 Intermediate lever (834021)
84 955781 2 Hexagon nut
85 955948 2 Toothed washer
86 955270 2 Hexagon screw
87 804312 1 Cube
88 955892 1 Washer
89 17276 1 Split pin
90 (851786) 2 Oil cooler Obsolete part

7742100- 44- 13909 6660 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3B: 852102
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

91 (852007) 1 Connection pipe Obsolete part
92 (851730) 1 End plate Obsolete part
93 960169 4 O-ring
94 959207 4 Hex. socket screw
95 804107 2 Zinc electrode
96 800475 2 Plug
97 839351 1 Oil dipstick
98 897682 1 Gasket
99 955974 1 O-ring
100 814179 1 Plug
875628 1 Gasket kit See group 10A

7742100- 44- 13909 6660 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3B: 852001
44

1
8 63
64
25
97
9
6 23 20
3 24
7 61
4 14
98 19
15
14 18
5 17 62

10
10

16
14 62A
62C 62B
15
14
13
12
11 11
22
21
8 9
2 54A
50 50A 91 54B 54 60 58 59 57

52
90 54C
51 45 54D
27

94

49
92 53
22A 95 55
37 77 56
41 93 77A 81 81A
42 96
43
44 79
22
80
68
82
75
40 26
38 69 77
26A
39 76
66
35

27 65 72
78
28
29 73
67
30 33 34 71 87
70 89
36 74
48
47
10 86
32 99 83 88
46 31 100 85
84

Upd:2014-08-13 6660 7742100 -44 -13909B

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3B: 852001
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (852001) 1 Reversing gear Ratio 1,54:1, Obsolete part
2 (851673) 1 Gear housing Obsolete part
3 832668 1 Cover
4 956585 3 Hex. socket screw
5 832669 1 Gasket
6 814643 1 Hollow screw
7 955989 1 O-ring
8 943866 X Shim TH=0.1mm
943867 X Shim TH=0.2mm
943868 X Shim TH=0.4mm
9 183729 2 Ball bearing
10 839027 1 Gear set
11 897312 2 Lock ring
12 850422 1 Spacer ring
13 852433 1 Wear washer (850243)
14 181359 4 Needle roller assemb
15 (897308) 2 Spacer ring Obsolete part
16 897385 1 Shaft
17 951077 1 Snap ring
18 26411 1 Shim
19 813970 1 Spring
20 852548 1 Sliding sleeve
21 850433 1 Snap ring
22 949071 X Shim TH=0.1mm
949072 X Shim TH=0.15mm
949073 X Shim TH=0.50mm
949074 X Shim TH=0.50mm
23 832644 1 Bearing sleeve
24 946179 X Shim TH=0.1mm
943870 X Shim TH=0.2mm
25 1 nut
26 181301 1 Inner ring
26A 181302 1 Cup
27 (851720) 1 Drive gear set Obsolete part
28 181303 1 Inner ring
29 181304 1 Cup
30 941835 X Shim TH=0,05mm
87655 X Shim TH=0.1mm
191840 X Shim TH=0.15mm
87654 X Shim TH=0.35mm
31 (851697) 1 Bearing cover Obsolete part
32 946329 4 Flange screw
33 957173 1 Gasket
34 960628 1 Plug
35 875425 1 Bearing box
36 951940 1 Spring pin
37 183247 1 Roller bearing
38 183668 1 Roller bearing
39 897772 1 Oil deflector
40 925256 1 O-ring
41 941826 X Shim TH=0,05mm
941827 X Shim TH=0.2mm
948230 X Shim TH=0.35mm
42 839253 1 Sealing ring
43 914538 1 Snap ring
44 832675 1 Washer
45 956000 1 O-ring
46 943871 X Shim TH=0,05mm
943872 X Shim TH=0.1mm
943873 X Shim TH=0.2mm
47 839013 1 Washer

7742100- 44- 13909B 6660 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3B: 852001
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

48 (851293) 1 Screw Obsolete part
49 850275 1 Stub axle
50 (850276) 1 Intermediate section Obsolete part
50A 925257 1 O-ring
51 965185 6 Flange screw
52 925267 1 O-ring
53 (851494) X Adjusting washer TH=0.1mm, Obsolete part
851495 X Adjusting washer TH=0.15mm
(851496) X Adjusting washer TH=0.35mm, Obsolete part
54 183668 1 Roller bearing
54A (851699) 1 Spacer sleeve Obsolete part
54B 852184 X Shim TH=0,05mm
54 84219 X Shim TH=0.1mm
84218 X Shim TH=0.35mm
54C 183328 1 Cup
54D 183327 1 Inner ring
55 (851678) 1 Bearing housing Obsolete part
56 946671 6 Flange screw
57 944530 1 Sealing ring
58 851679 1 Spacer sleeve
59 959026 1 Sealing ring
60 925063 1 O-ring
61 (852072) 1 Slip clutch Obsolete part
62 925069 1 O-ring
62A 925092 1 O-ring
62B 925263 2 O-ring
62C 955299 8 Hexagon screw
63 850471 1 Washer
64 947855 1 Flange lock nut
65 839504 1 Shift mechanism
66 839505 1 Bearing housing
67 897816 1 Eccentric piston
Bulletin P-44-1-7 P-44-1-7-EN Shift mechanism, eccentric piston
68 814603 1 Dog
69 814184 1 Spring
70 897711 1 Hexagon screw
71 897871 X Shim TH=0.2mm
72 958838 1 Sealing ring
73 951924 1 Spring pin
74 942871 1 Clevis pin
75 925093 1 O-ring
76 955273 4 Hexagon screw
77 941906 8 Spring washer
77A 942000 2 Hex. socket screw
78 (850350) 1 Cable attachment Obsolete part
79 819068 1 Washer
80 21471054 1 Bracket
81 946577 2 Lock nut
81A 940090 2 Washer
82 955246 2 Hexagon screw
83 852363 1 Intermediate lever (834021)
84 955781 2 Hexagon nut
85 955948 2 Toothed washer
86 955270 2 Hexagon screw
87 804312 1 Cube
88 955892 1 Washer
89 17276 1 Split pin
90 (851786) 2 Oil cooler Obsolete part
91 (852007) 1 Connection pipe Obsolete part
92 (851730) 1 End plate Obsolete part
93 960169 4 O-ring

7742100- 44- 13909B 6660 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3B: 852001
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

94 959207 4 Hex. socket screw
95 804107 2 Zinc electrode
96 800475 2 Plug
97 839351 1 Oil dipstick
98 897682 1 Gasket
99 955974 1 O-ring
100 814179 1 Plug
875628 1 Gasket kit See group 10A

7742100- 44- 13909B 6660 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3B: 852002
44

1
8 63
64
25
97
9
6 23 20
3 24
7 61
4 14
98 19
15
14 18
5 17 62

10
10

16
14 62A
62C 62B
15
14
13
12
11 11
22
21
8 9
2 54A
50 50A 91 54B 54 60 58 59 57

52
90 54C
51 45 54D
27

94

49
92 53
22A 95 55
37 77 56
41 93 77A 81 81A
42 96
43
44 79
22
80
68
82
75
40 26
38 69 77
26A
39 76
66
35

27 65 72
78
28
29 73
67
30 33 34 71 87
70 89
36 74
48
47
10 86
32 99 83 88
46 31 100 85
84

Upd:2014-08-13 6660 7742100 -44 -13909C

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3B: 852002
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (852002) 1 Reversing gear Ratio 1,93:1, Obsolete part
2 (851673) 1 Gear housing Obsolete part
3 832668 1 Cover
4 956585 3 Hex. socket screw
5 832669 1 Gasket
6 814643 1 Hollow screw
7 955989 1 O-ring
8 943866 X Shim TH=0.1mm
943867 X Shim TH=0.2mm
943868 X Shim TH=0.4mm
9 183729 2 Ball bearing
10 839027 1 Gear set
11 897312 2 Lock ring
12 850422 1 Spacer ring
13 852433 1 Wear washer (850243)
14 181359 4 Needle roller assemb
15 (897308) 2 Spacer ring Obsolete part
16 897385 1 Shaft
17 951077 1 Snap ring
18 26411 1 Shim
19 813970 1 Spring
20 852548 1 Sliding sleeve
21 850433 1 Snap ring
22 949071 X Shim TH=0.1mm
949072 X Shim TH=0.15mm
949073 X Shim TH=0.50mm
949074 X Shim TH=0.50mm
23 832644 1 Bearing sleeve
24 946179 X Shim TH=0.1mm
943870 X Shim TH=0.2mm
25 1 nut
26 181301 1 Inner ring
26A 181302 1 Cup
27 (851715) 1 Drive gear set Obsolete part
28 181303 1 Inner ring
29 181304 1 Cup
30 941835 X Shim TH=0,05mm
87655 X Shim TH=0.1mm
191840 X Shim TH=0.15mm
87654 X Shim TH=0.35mm
31 (851697) 1 Bearing cover Obsolete part
32 946329 4 Flange screw
33 957173 1 Gasket
34 960628 1 Plug
35 875425 1 Bearing box
36 951940 1 Spring pin
37 183247 1 Roller bearing
38 183668 1 Roller bearing
39 897772 1 Oil deflector
40 925256 1 O-ring
41 941826 X Shim TH=0,05mm
941827 X Shim TH=0.2mm
948230 X Shim TH=0.35mm
42 839253 1 Sealing ring
43 914538 1 Snap ring
44 832675 1 Washer
45 956000 1 O-ring
46 943871 X Shim TH=0,05mm
943872 X Shim TH=0.1mm
943873 X Shim TH=0.2mm
47 839013 1 Washer

7742100- 44- 13909C 6660 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3B: 852002
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

48 (851293) 1 Screw Obsolete part
49 850275 1 Stub axle
50 (850276) 1 Intermediate section Obsolete part
50A 925257 1 O-ring
51 965185 6 Flange screw
52 925267 1 O-ring
53 (851494) X Adjusting washer TH=0.1mm, Obsolete part
851495 X Adjusting washer TH=0.15mm
(851496) X Adjusting washer TH=0.35mm, Obsolete part
54 183668 1 Roller bearing
54A (851699) 1 Spacer sleeve Obsolete part
54B 852184 1 Shim TH=0,05mm
54 84219 1 Shim TH=0.1mm
84218 1 Shim TH=0.35mm
54C 183328 1 Cup
54D 183327 1 Inner ring
55 (851678) 1 Bearing housing Obsolete part
56 946671 6 Flange screw
57 944530 1 Sealing ring
58 851679 1 Spacer sleeve
59 959026 1 Sealing ring
60 925063 1 O-ring
61 (852072) 1 Slip clutch Obsolete part
62 925069 1 O-ring
62A 925092 1 O-ring
62B 925263 2 O-ring
62C 955299 8 Hexagon screw
63 850471 1 Washer
64 947855 1 Flange lock nut
65 839504 1 Shift mechanism
66 839505 1 Bearing housing
67 897816 1 Eccentric piston
Bulletin P-44-1-7 P-44-1-7-EN Shift mechanism, eccentric piston
68 814603 1 Dog
69 814184 1 Spring
70 897711 1 Hexagon screw
71 897871 X Shim TH=0.2mm
72 958838 1 Sealing ring
73 951924 1 Spring pin
74 942871 1 Clevis pin
75 925093 1 O-ring
76 955273 4 Hexagon screw
77 941906 8 Spring washer
77A 942000 2 Hex. socket screw
78 (850350) 1 Cable attachment Obsolete part
79 819068 1 Washer
80 21471054 1 Bracket
81 946577 2 Lock nut
81A 940090 2 Washer
82 955246 2 Hexagon screw
83 852363 1 Intermediate lever (834021)
84 955781 2 Hexagon nut
85 955948 2 Toothed washer
86 955270 2 Hexagon screw
87 804312 1 Cube
88 955892 1 Washer
89 17276 1 Split pin
90 (851786) 2 Oil cooler Obsolete part
91 (852007) 1 Connection pipe Obsolete part
92 (851730) 1 End plate Obsolete part
93 960169 4 O-ring

7742100- 44- 13909C 6660 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3B: 852002
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

94 959207 4 Hex. socket screw
95 804107 2 Zinc electrode
96 800475 2 Plug
97 839351 1 Oil dipstick
98 897682 1 Gasket
99 955974 1 O-ring
100 814179 1 Plug
875628 1 Gasket kit See group 10A

7742100- 44- 13909C 6660 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3B: 852003
44

1
8 63
64
25
97
9
6 23 20
3 24
7 61
4 14
98 19
15
14 18
5 17 62

10
10

16
14 62A
62C 62B
15
14
13
12
11 11
22
21
8 9
2 54A
50 50A 91 54B 54 60 58 59 57

52
90 54C
51 45 54D
27

94

49
92 53
22A 95 55
37 77 56
41 93 77A 81 81A
42 96
43
44 79
22
80
68
82
75
40 26
38 69 77
26A
39 76
66
35

27 65 72
78
28
29 73
67
30 33 34 71 87
70 89
36 74
48
47
10 86
32 99 83 88
46 31 100 85
84

Upd:2014-08-13 6660 7742100 -44 -13909D

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3B: 852003
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 852003 1 Reversing gear Ratio 2,91:1
2 (851673) 1 Gear housing Obsolete part
3 832668 1 Cover
4 956585 3 Hex. socket screw
5 832669 1 Gasket
6 814643 1 Hollow screw
7 955989 1 O-ring
8 943866 X Shim TH=0.1mm
943867 X Shim TH=0.2mm
943868 X Shim TH=0.4mm
9 183729 2 Ball bearing
10 839027 1 Gear set
11 897312 2 Lock ring
12 850422 1 Spacer ring
13 852433 1 Wear washer (850243)
14 181359 4 Needle roller assemb
15 (897308) 2 Spacer ring Obsolete part
16 897385 1 Shaft
17 951077 1 Snap ring
18 26411 1 Shim
19 813970 1 Spring
20 852548 1 Sliding sleeve
21 850433 1 Snap ring
22 949071 X Shim TH=0.1mm
949072 X Shim TH=0.15mm
949073 X Shim TH=0.50mm
949074 X Shim TH=0.50mm
22A (851539) 1 Spacer ring Obsolete part
23 832644 1 Bearing sleeve
24 946179 X Shim TH=0.1mm
943870 X Shim TH=0.2mm
25 1 nut
26 181301 1 Inner ring
26A 181302 1 Cup
27 (851718) 1 Drive gear set Obsolete part
28 181303 1 Inner ring
29 181304 1 Cup
30 941835 X Shim TH=0,05mm
87655 X Shim TH=0.1mm
191840 X Shim TH=0.15mm
87654 X Shim TH=0.35mm
31 (851739) 1 Bearing cover Obsolete part
32 946329 4 Flange screw
33 957173 1 Gasket
34 960628 1 Plug
35 875425 1 Bearing box
36 951940 1 Spring pin
37 183247 1 Roller bearing
38 183668 1 Roller bearing
39 897772 1 Oil deflector
40 925256 1 O-ring
41 941826 X Shim TH=0,05mm
941827 X Shim TH=0.2mm
948230 X Shim TH=0.35mm
42 839253 1 Sealing ring
43 914538 1 Snap ring
44 832675 1 Washer
45 956000 1 O-ring
46 943871 X Shim TH=0,05mm
943872 X Shim TH=0.1mm
943873 X Shim TH=0.2mm

7742100- 44- 13909D 6660 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3B: 852003
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

47 839013 1 Washer
48 (851293) 1 Screw Obsolete part
49 850275 1 Stub axle
50 (850276) 1 Intermediate section Obsolete part
50A 925257 1 O-ring
51 965185 6 Flange screw
52 925267 1 O-ring
53 (851494) X Adjusting washer TH=0.1mm, Obsolete part
851495 X Adjusting washer TH=0.15mm
(851496) X Adjusting washer TH=0.35mm, Obsolete part
54 183668 1 Roller bearing
54A (851699) 1 Spacer sleeve Obsolete part
54B 852184 1 Shim TH=0,05mm
54 84219 1 Shim TH=0.1mm
84218 1 Shim TH=0.35mm
54C 183328 1 Cup
54D 183327 1 Inner ring
55 (851678) 1 Bearing housing Obsolete part
56 946671 6 Flange screw
57 944530 1 Sealing ring
58 851679 1 Spacer sleeve
59 959026 1 Sealing ring
60 925063 1 O-ring
61 (852072) 1 Slip clutch Obsolete part
62 925069 1 O-ring
62A 925092 1 O-ring
62B 925263 2 O-ring
62C 955299 8 Hexagon screw
63 850471 1 Washer
64 947855 1 Flange lock nut
65 839504 1 Shift mechanism
66 839505 1 Bearing housing
67 897816 1 Eccentric piston
Bulletin P-44-1-7 P-44-1-7-EN Shift mechanism, eccentric piston
68 814603 1 Dog
69 814184 1 Spring
70 897711 1 Hexagon screw
71 897871 X Shim TH=0.2mm
72 958838 1 Sealing ring
73 951924 1 Spring pin
74 942871 1 Clevis pin
75 925093 1 O-ring
76 955273 4 Hexagon screw
77 941906 8 Spring washer
77A 942000 2 Hex. socket screw
78 (850350) 1 Cable attachment Obsolete part
79 819068 1 Washer
80 21471054 1 Bracket
81 946577 2 Lock nut
81A 940090 2 Washer
82 955246 2 Hexagon screw
83 852363 1 Intermediate lever (834021)
84 955781 2 Hexagon nut
85 955948 2 Toothed washer
86 955270 2 Hexagon screw
87 804312 1 Cube
88 955892 1 Washer
89 17276 1 Split pin
90 (851786) 2 Oil cooler Obsolete part
91 (852007) 1 Connection pipe Obsolete part
92 (851730) 1 End plate Obsolete part

7742100- 44- 13909D 6660 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Reverse Gear MS3B: 852003
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

93 960169 4 O-ring
94 959207 4 Hex. socket screw
95 804107 2 Zinc electrode
96 800475 2 Plug
97 839351 1 Oil dipstick
98 897682 1 Gasket
99 955974 1 O-ring
100 814179 1 Plug
875628 1 Gasket kit See group 10A

7742100- 44- 13909D 6660 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Aquamatic Drive Unit
44

Upd:2014-08-13 3508 7742100 -44 -13913

MD21B, AQD21B
 HeavyManuals.com
Aquamatic Drive Unit
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 1 PZ-2890112., Replaced by 1ea 851317, 1ea 851267.,
Ratio 1,61:1
839402 1 Protecting cap PZ-2890112., Replaced by 1ea 851318, 1ea 851267.,
Ratio 2,15:1
850354 1 Drive Included in complete drive unit, PZ-2898014., Included in
AQ drive unit 850354, 850356., Ratio 1,61:1
850356 1 Drive Included in complete drive unit, PZ-2898014., 804227
and 804218 replaced by 826341., Ratio 2,15:1
851317 1 Drive PZ 2898015-., Replaced by 852161., Ratio 1,61:1
852161 1 Drive Ratio 1,61:1
851318 1 Drive PZ 2898015-., Ratio 2,15:1
2 1 Included in AQ drive unit 839400, 839401, 839402.,
Replaced by 1ea 851340, 1ea 851267.
13914
850460 1 Upper gear Replaced by 1ea 851317, 1ea 851267., Replaced by
1ea 851340, 1ea 851267.
13914
851340 1 Upper gear Included in drive unit 851317, 851318, 852161.
13914
3 1 interm housing 13915
4 1 lower gear unit 13916
875192 1 Gasket kit See group 10

7742100- 44- 13913 3508 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
S-Drive Unit
44

Upd:2014-08-13 5319 7742100 -44 -13910

MD21B, AQD21B
 HeavyManuals.com
S-Drive Unit
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (851332) 1 Drive Ratio2,15:1, Obsolete part
2 (851483) 1 Upper gear 13911 Obsolete part
3 (851485) 1 Lower gear 13912 Obsolete part
875591 1 Gasket kit See group 10

7742100- 44- 13910 5319 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Upper Gear Unit S-Drive Unit 110S: MD21B/110S
44

42 1
43 5

41 6
7
38 40

30 27
44
8
26
19

9 35
34
36
33
37
36 37
36
9 37
36 3 16 4
32 9 17
13 14
10
12

28
25 24
29 15
71
30
69
39

31 40
38
41
21
70
20
11
18
22 23
77 75
10
76 2 9 52 58 59
73 56
74 72 54

57

61 55
60
53 46

49 47
48
50 45
51

67
78 66 68
66A
74
62 65
64 63
73

Upd:2014-08-13 6140 7742100 -44 -13911

MD21B, AQD21B
 HeavyManuals.com
Upper Gear Unit S-Drive Unit 110S: MD21B/110S
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (851483) 1 Upper gear Ratio 2,15:1, Obsolete part
2 (850058) 1 Gear housing Obsolete part
3 (961638) 1 Grooved pin Obsolete part
4 (832189) 1 Support washer Obsolete part
5 (850060) 1 Cover Obsolete part
6 (804342) 1 Screw Obsolete part
7 804344 1 Gasket
8 (832140) 1 Washer Obsolete part
9 (832127) 1 Gear set Obsolete part
10 (181290) 2 Ball bearing Obsolete part
11 (832920) 1 Bearing box Obsolete part
12 (832128) X Intermediate ring Obsolete part, TH=11,850mm
(832129) X Intermediate ring Obsolete part, TH=11,875mm
(832130) X Intermediate ring Obsolete part, TH=11,900mm
(832131) X Intermediate ring Obsolete part, TH=11,925mm
(832132) X Intermediate ring Obsolete part, TH=11,950mm
(832133) X Intermediate ring Obsolete part, TH=11,975mm
(832134) X Intermediate ring Obsolete part, TH=12,000mm
X Intermediate ring TH=12,025mm
(851732) X Intermediate ring Obsolete part, TH=12,050mm
(851733) X Intermediate ring Obsolete part, TH=12,075mm
(851734) X Intermediate ring Obsolete part, TH=12,100mm
13 907025 1 Lock washer
14 (832923) 1 Lock nut Obsolete part
15 832952 1 Gasket
16 (832921) 1 Bearing cover Obsolete part
17 958856 1 Sealing ring
18 955995 1 O-ring
19 (851241) 1 Stub axle Obsolete part
20 (946292) 1 Hex. socket screw Obsolete part
21 (850203) 1 Washer Obsolete part
22 925094 1 O-ring
23 (804301) X Adjusting washer Obsolete part, TH=0,05mm
(804221) X Adjusting washer Obsolete part, TH=0,10mm
(804394) X Adjusting washer Obsolete part, TH=0.20mm
24 959224 5 Hex. socket screw L=35mm
959222 1 Hex. socket screw L=25mm
25 941907 6 Spring washer
26 (813949) 1 Bearing sleeve Obsolete part
27 951953 1 Spring pin
28 (850336) 1 Anchorage Obsolete part
29 (959194) 4 Hex. socket screw Obsolete part
30 181287 2 Ball bearing
31 (850290) 1 Shaft Obsolete part
32 850303 1 Sliding sleeve
33 914456 1 Snap ring
34 (850987) 1 Shim Obsolete part
35 813970 1 Spring
36 181268 4 Needle roller assemb
37 813939 3 Spacer ring
38 850761 2 Pin
39 87655 X Shim TH=0,10mm
191840 X Shim TH=0.15mm
40 813941 2 Spacer ring TH=5.0mm
(813971) 2 Spacer ring Obsolete part, TH=5,1mm
(813972) 2 Spacer ring Obsolete part, TH=5,2mm
(813973) 2 Spacer ring Obsolete part, TH=5,3mm
(813974) 2 Spacer ring Obsolete part, TH=5,4mm
41 814030 2 Lock ring
42 959224 4 Hex. socket screw
43 (948486) X Shim Obsolete part, TH=0,05mm

7742100- 44- 13911 6140 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Upper Gear Unit S-Drive Unit 110S: MD21B/110S
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

(948487) X Shim Obsolete part, TH=0,10mm
(948488) X Shim Obsolete part, TH=0.20mm
44 925257 1 O-ring
45 852363 1 Intermediate lever (834021)
46 955270 2 Hexagon screw
47 955948 2 Toothed washer
48 955781 2 Hexagon nut
49 804312 1 Cube
50 955892 1 Washer
51 907834 1 Split pin
52 839505 1 Bearing housing
53 897816 1 Eccentric piston
Bulletin P-44-1-7 P-44-1-7-EN Shift mechanism, eccentric piston
54 897711 1 Hexagon screw
55 814184 1 Spring
56 897871 X Shim TH=0.20mm
57 839646 1 Dog
58 942871 1 Clevis pin
59 951924 1 Spring pin
60 958838 1 Sealing ring (941866)
61 925093 1 O-ring
62 (850350) 1 Cable attachment Obsolete part
63 21471054 1 Bracket
64 819068 1 Washer
65 955246 2 Hexagon screw
66 946577 2 Lock nut
66A 940090 2 Washer
67 941906 4 Spring washer
68 955272 4 Hexagon screw
69 (850207) 1 Oil dipstick Obsolete part
70 (850209) 1 Tube Obsolete part
71 925054 1 O-ring
72 (851314) 1 Bracket Obsolete part
73 960148 4 Washer
74 955318 4 Hexagon screw
75 952076 1 Plug (946559)
76 852230 1 Tap
77 801197 1 Hose attachment
78 (850759) 1 Hose clamp Obsolete part

7742100- 44- 13911 6140 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Lower Gear Unit S-Drive Unit 110S: MD21B/110S
44

1 27

5
12 6
13 7

30
31

29

28

10

11

26 37
25 36

21

15

20
16
23
18
32
35
19
17 41
14 38A 40

22

39
3 38

34

33
24

Upd:2014-08-13 5941 7742100 -44 -13912

MD21B, AQD21B
 HeavyManuals.com
Lower Gear Unit S-Drive Unit 110S: MD21B/110S
44

REF PART NO. QTY DESCRIPTION NOTES

1 (851485) 1 Lower gear Obsolete part
2 (851486) 1 Lower gear Obsolete part
3 (851473) 1 Bearing housing Obsolete part
4 (850071) 1 Countershaft Obsolete part
5 914459 1 Snap ring
6 (26413) X Shim TH=0.1mm, Obsolete part
26411 X Shim TH=1.0mm
7 18559 1 Ball bearing
8 (804303) X Adjusting washer Obsolete part, TH=0,05mm
(34615) X Shim Obsolete part, TH=0,10mm
9 (806620) 1 Roller bearing Obsolete part
10 181288 1 Needle bearing
11 (851286) 1 Gear set Obsolete part
12 382005 1 Disc spring
13 (946363) 1 Lock nut Obsolete part
14 897426 2 Sealing ring
15 851301 1 Propeller shaft
16 181287 1 Ball bearing
17 906635 1 Round nut
18 87655 X Shim TH=0,10mm
191840 X Shim TH=0.15mm
19 907025 1 Lock washer
20 (897341) 1 Thrust ring Obsolete part
21 183390 1 Needle roller bushin
22 925257 2 O-ring
23 963706 2 Hex. socket screw
24 832965 1 Ring
25 804262 1 Plug
26 804261 1 Gasket
27 850304 1 Splined sleeve
28 963711 6 Hex. socket screw
29 942551 6 Washer
30 21389074 1 Rubber bellows
31 960238 1 O-ring
32 875812 1 Zinc ring kit
33 1 zinc ring (850073)
34 851287 1 O-ring
35 963695 4 Hex. socket screw
36 953031 6 Stud
37 955781 6 Hexagon nut
38 850396 1 Propeller cone kit See group 4A
38A 850888 1 Plastic washer
39 851773 1 Screw (949325) see group 4A
40 949807 1 Split pin Replaced by 1ea 851340 and 1ea 853561
41 852044 1 Castle nut Replaced by 1ea 851340 and 1ea 853561

7742100- 44- 13912 5941 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Upper Gear Unit AQ Drive Unit 280
44

7 8
1
70 9

41 76
71 51

38 77 42

39
40 79

23 47 48
11 73
72
10
75
11
6
2 5

43
34 33

44
78 45
3 66 46
36
62
37 55 63
35 65 56
11
57
53 58
17 59 64 54 61 60

21 52
20 47 48
19
18
74 12 49
22 14
50 40

35B
35A 39
16
15
38
17

13
69

25
67
27 24

68

26
28

31
32
29
30

Upd:2014-08-13 5368 7742100 -44 -13914

MD21B, AQD21B
 HeavyManuals.com
Upper Gear Unit AQ Drive Unit 280
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 1 Included in AQ drive unit 839400, 839401, 839402.,
Replaced by 1ea 851340, 1ea 851267.,
PZ-2890112
850460 1 Upper gear Included in AQ drive unit 850354, 850356.,
Replaced by 1ea 851340, 1ea 851267.,
PZ-2898014
851340 1 Upper gear Included in drive unit 851317, 851318, 852161.,
PZ2898015-
2 (832674) 1 Housing Obsolete part
3 941814 2 Stud 13915
4 832667 1 Gear housing cover
5 814179 1 Plug
6 897682 1 Gasket
7 941807 3 Hex. socket screw
8 814643 1 Hollow screw
9 955989 1 O-ring
10 832669 1 Gasket
11 839027 1 Gear set
12 875425 1 Bearing box
13 951940 1 Spring pin
14 183247 1 Roller bearing
15 183668 1 Roller bearing
16 897772 1 Oil deflector
17 925256 2 O-ring
18 941826 X Shim TH=0.50mm
941827 X Shim TH=0.2mm
948230 X Shim TH=0.35mm
19 839253 1 Sealing ring
20 914538 1 Snap ring
21 832675 1 Washer
22 956000 1 O-ring
23 943871 X Shim TH=0,05mm
943872 X Shim TH=0.1mm
943873 X Shim TH=0.2mm
24 839028 1 Joint
Bulletin P-44-1-5 P-44-1-5-EN U-joints
25 897774 1 Fork
Bulletin P-44-1-5 P-44-1-5-EN U-joints
26 839026 1 Fork
27 897706 1 Intermediate section
28 897707 2 Cross piece
29 (897776) 4 Lock ring Obsolete part
30 8 needle bearing
31 8 protector ring
32 8 cork ring
33 (851293) 1 Screw (945090), Obsolete part
34 839013 1 Washer
35 (832573) 1 Tensioning ring Obsolete part, Included in AQ drive unit 839400,
839401, 839402., PZ-2890112
(839589) 1 Tensioning ring Included in AQ drive unit 850354, 850356.,
PZ-2898014, Obsolete part
851265 1 Tensioning ring Included in drive unit 851317, 851318, 852161.,
PZ2898015-
35A 852705 1 Pivot pin (851263) PZ2898015-
35B 941807 2 Hex. socket screw PZ2898015-
36 956590 4 Hex. socket screw
37 942598 4 Washer
38 183729 2 Ball bearing
39 832644 2 Bearing sleeve
40 943869 X Shim TH=0,05mm
946179 X Shim TH=0.1mm
943870 X Shim TH=0.2mm
7742100- 44- 13914 5368 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Upper Gear Unit AQ Drive Unit 280
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

41 943866 X Shim TH=0.1mm
943867 X Shim TH=0.2mm
943868 X Shim TH=0.4mm
42 897385 1 Shaft
43 814601 1 Sliding sleeve
Bulletin P-44-1-8 P-44-1-8-EN Shift mechanism, shift cone and shoe
Bulletin P-44-1-18 P-44-1-18-EN Shift Cone
44 813970 1 Spring
45 26411 1 Shim
46 951077 1 Snap ring
47 181359 4 Needle roller assemb
48 (897308) 2 Spacer ring Obsolete part
49 897313 1 Spacer ring
50 897312 2 Lock ring
51 839332 1 Nut TH=2,00mm
839333 1 Nut TH=2,37mm
839334 1 Nut TH=2,65mm
52 839504 1 Shift mechanism
53 839505 1 Bearing housing
54 897816 1 Eccentric piston
Bulletin P-44-1-7 P-44-1-7-EN Shift mechanism, eccentric piston
55 814603 1 Dog
56 814184 1 Spring
57 (60309) 2 Ball PZ-2829528, Obsolete part
58 (839136) 2 Spring PZ-2829528, Obsolete part
59 (941338) X Locking wire PZ-2829528 L=300mm, Obsolete part
60 897711 1 Hexagon screw
61 897871 X Shim TH=0.2mm
62 958838 1 Sealing ring (941866)
63 951924 1 Spring pin
64 942871 1 Clevis pin
65 925093 1 O-ring
66 940169 4 Hexagon screw
67 875256 1 Bellows
68 853012 1 Hose clamp
69 853012 1 Hose clamp
70 839351 1 Oil dipstick
71 955974 1 O-ring
72 (814687) 1 Sign Obsolete part
73 804269 2 Drive screw
74 832716 1 Shoulder screw Included in folding propeller., PZ-2890112 1/2''
839696 1 Shoulder screw Early type of spline sleeve is replaced by shaft
852527 + spline sleeve 852534., PZ-2898014 M18
75 832570 1 Protecting cover
76 (897873) 1 Latch Obsolete part
77 943218 1 Cross recessed screw
78 941816 1 Cross recessed screw
79 839465 1 Sign

7742100- 44- 13914 5368 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Intermediate Housing AQ Drive Unit 280
44

31

33 30

34

32 35

11 27
29
7

8
44 28

20

57 21
14 26
18
16
19

43B 3

58 37
38
6

10
5
15 24 36
25 21
38

43 17
51 2
39
53
52
42 4
54
48
13
47 46
42
50 49 12
53
40

41
40 13
55
56

49 45
46 22

23

Upd:2014-08-13 5973 7742100 -44 -13915

MD21B, AQD21B
 HeavyManuals.com
Intermediate Housing AQ Drive Unit 280
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 832682 1 Intermediate housing
2 897829 1 Gear yoke
3 814397 1 Coupling rod
4 897447 1 Shaft
5 897511 2 Washer
6 17253 1 Split pin
7 925259 1 O-ring
8 943866 X Shim TH=0.1mm
943867 X Shim TH=0.2mm
943868 X Shim TH=0.4mm
9 875365 1 Fork
10 940194 1 Lubricating nipple
11 814388 1 Bushing
12 183391 1 Needle roller bearin
13 181620 2 Sealing ring
14 941807 2 Hex. socket screw
15 814390 2 Plastic washer
16 941885 2 Lock nut
17 897448 1 Control rod
18 813954 1 Fork
19 940190 1 Hexagon nut
20 192662 1 Split pin
21 17253 2 Split pin
22 814386 1 Steering knuckle
23 941820 1 O-ring
24 897696 1 Washer
25 941809 1 Hex. socket screw
26 941808 2 Hex. socket screw
27 851766 1 Hose connection (832846) see group 4A
28 814356 1 Sealing
29 941813 2 Hex. socket screw
30 897644 1 Tube
31 125017 2 O-ring
32 (897457) 1 Cable attachment Obsolete part
33 940168 2 Hexagon screw
34 940191 2 Washer
35 876278 2 Bushing kit
36 804312 1 Cube
37 17276 1 Split pin
38 940191 2 Washer
39 814434 1 Reverse tilt inhibit
40 814391 2 Latch
41 814389 1 Bearing sleeve
42 814422 2 Spacer washer
43 852046 1 Push rod (814421)
43B 1 nut (940197)
44 897722 1 Thrust sleeve
45 814394 1 Lock brace
46 814395 2 Spindle
47 832534 1 Spring
48 814399 1 Shaft
49 943194 1 Washer
50 814392 1 Spring hook
51 814419 1 Shaft
52 814393 1 Spring hook
53 943197 2 Lock nut
54 814398 1 Spindle
55 814396 1 Spring
56 814332 2 Spring
57 941814 2 Stud 13914
58 X control cable See group 9

7742100- 44- 13915 5973 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Intermediate Housing AQ Drive Unit 280
44

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

875361 1 Repair kit, repair kit astern lever

7742100- 44- 13915 5973 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Lower Gear Unit AQ Drive Unit 280
44

52

51

21
20
19
18 1
17
16
13
14
15

12
22

50

4
53
2 10
54 5
7
8
9

3
49 25
48
27
28
24
26
33 32
31 23
34 35
36
37
38
39 6 25
11
47 29 30

45 46
40
42
41
44
43

Upd:2014-08-13 26981 7742100 -44 -13916

MD21B, AQD21B
 HeavyManuals.com
Lower Gear Unit AQ Drive Unit 280
44

REF PART NO. QTY DESCRIPTION NOTES

1 839390 1 Lower gear Ratio 1,61:1
839391 1 Lower gear Ratio 1,89:1
839392 1 Lower gear Ratio 2,15:1
2 875523 1 Housing
3 851567 1 Fin (850012) PZ-2862967
1 steering fin Replaced by 851452, 959440., (850492) PZ2862968-
PZ-28004759
851452 1 Fin PZ28004760-
4 959422 1 Hex. socket screw PZ-2862967
=32mm 1/4''UNC
959421 1 Screw PZ-2862967
L=25mm 1/4''UNC
959439 1 Hex. socket screw PZ2862968-
PZ-28004759 5/16''UNC
959440 1 Hex. socket screw PZ28004760-
5 183497 1 Needle bearing
6 941812 2 Hex. socket screw
7 1 exhaust port Replaced by 850443 (exhaust bellows with check valve).,
PZ-2850005
8 1 rubber lip
9 2 plate
10 6 rivet
11 839389 1 Bearing housing
12 832555 1 Countershaft
13 183374 1 Ball bearing
14 941832 X Shim TH=0,05mm
941833 X Shim TH=0.20mm
15 832191 1 Gasket
16 944970 X Shim TH=1,60mm
17 11072 1 Roller bearing
18 944522 X Shim TH=0,05mm
42981 X Shim TH=0,10mm
42980 X Shim TH=0.20mm
19 897387 1 Tensioning ring
20 907023 1 Lock washer
21 906633 1 Round nut
22 814482 1 Oil strainer
23 875524 1 Propeller shaft
24 183390 1 Needle roller bushin
25 832624 1 Gear set Ratio 1,61:1
(832628) 1 Gear set Ratio 1,89:1, Obsolete part
(832632) 1 Gear set Ratio 2,15:1, Obsolete part
26 948407 X Spring pin
27 814165 1 Washer
28 814164 1 Nut
29 832548 1 Pump rotor
30 914474 1 Snap ring
31 832725 1 Thrust ring
32 953449 6 Stud
33 955825 6 Hexagon nut
34 181366 1 Ball bearing
35 944561 X Shim TH=0,05mm
944562 X Shim TH=0,10mm
851767 X Shim TH=0.20mm
36 907025 1 Lock washer
37 906635 1 Round nut
38 897426 2 Sealing ring
39 925261 2 O-ring
40 875815 1 Zinc ring kit
41 941809 2 Hex. socket screw
42 839423 1 Line cutter

7742100- 44- 13916 26981 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Lower Gear Unit AQ Drive Unit 280
44

REF PART NO. QTY DESCRIPTION NOTES

43 897367 1 Lock washer Early type
44 850889 1 Screw Late type
45 850888 1 Plastic washer Late type
46 1 propeller cone Replaced by 850785, 851261.
850785 1 Spinner
47 851261 1 Spacer washer For propeller with short hub, pz 28015547-
48 839354 1 Plug
49 955974 1 O-ring
50 925256 1 O-ring
51 875183 1 Splined sleeve
52 914508 1 Snap ring
53 853095 1 Washer
54 941810 4 Hex. socket screw

7742100- 44- 13916 26981 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Steering Mechanism, Cable Type
64

2
4
3

30
9B
5
9A 29 28
8A 31 27
32
9 31
10A
33

31
8 32 34 35
31

37
11 36
9 38
10 17 6 13
20 7 16
15
23 12

22 14
23
20

26
21
19
21
24

18
18A 25

Upd:2014-08-13 5051 7742100 -64 -13917

MD21B, AQD21B
 HeavyManuals.com
Steering Mechanism, Cable Type
64

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 850809 1 Steering head
13920
2 (850936) 1 Steering wheel (814138), Obsolete part
3 (839544) 1 Steering lock Obsolete part
13921
4 (839617) 1 Extension cable'verl Obsolete part
5 850810 X Steering cable L=3000mm
850811 X Steering cable
850812 X Steering cable L=3600mm
850813 X Steering cable L=3900mm
850814 X Steering cable L=4200mm
850815 X Steering cable L=4500mm
850816 X Steering cable L=4800mm
850817 X Steering cable L=5100mm
850818 X Steering cable L=5500mm
850820 X Steering cable L=6100mm
850822 X Steering cable L=6700mm
850826 X Steering cable L=7900mm
850828 X Steering cable L=8500mm
6 850771 1 Anchorage (835693)
7 850778 4 Nut (955861)
8 1 bracket Replaced by 1ea bracket 850958, 2ea bolt 955541, 1ea
bushing 850959, 1ea bushing 850960.
8A (850958) 1 Guide bracket Obsolete part
9 942336 2 Spring washer
9A (850960) 1 Bushing Obsolete part
9B (850959) 1 Bushing Obsolete part
10 955542 2 Hexagon screw L=83mm
10A 955541 2 Hexagon screw L=76mm
11 (850478) 1 Link rod Obsolete part, L=318mm
(850479) 1 Link rod Obsolete part, L=195mm
12 940154 1 Hexagon nut
13 (956511) 1 Fork Obsolete part
14 913158 1 Clevis pin
15 940097 1 Washer
16 (907856) 1 Split pin Obsolete part
17 964960 1 Split pin
18 (851385) 1 Link arm Obsolete part
18A 850653 1 Bushing See group 4A
19 914169 1 Lubricating nipple
20 (875772) 2 Ball joint kit Obsolete part
21 851326 2 Nut
22 850736 1 Control rod
23 940152 2 Hexagon nut
24 955906 1 Washer
25 (850489) 1 Stop arm Obsolete part
26 (850488) 1 Spindle arm Obsolete part, See group 4A
27 (850674) 1 Tie rod Obsolete part, Only for twin installation., Adjustable
between 740-1000mm.
(850776) 1 Tie rod Obsolete part, Only for twin installation., Adjustable
between 540-800mm.
28 (956511) 1 Fork Obsolete part
29 913158 1 Clevis pin
30 (907856) 1 Split pin Obsolete part
31 940154 4 Hexagon nut
32 (839577) 2 Rod Obsolete part
33 (839576) 1 Tube Obsolete part, L=560mm
(850775) 1 Tube Obsolete part, Only included in 850776., L=360mm
34 (956511) 1 Fork Obsolete part, Only included in 850674.
35 (907856) 1 Split pin Obsolete part
36 913158 1 Clevis pin
37 (814152) 1 Ball joint Obsolete part, Only included in 850673.
7742100- 64- 13917 5051 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Steering Mechanism, Cable Type
64

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

38 950386 1 Lock nut Only included in 850673.

7742100- 64- 13917 5051 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Steering Mechanism Roto Pilot
64

7 8
5
2 3
9
6
12
1 4

11 10

27 28
29

14
30
40
39
31
22 36 32
34
26 35 33
38 25
41 41 13
42 25 22
41 23 24
43 21 12
41 15 16
37 42 23
47
44
46 18
45
48
17
19
20

Upd:2014-08-13 5330 7742100 -64 -13918

MD21B, AQD21B
 HeavyManuals.com
Steering Mechanism Roto Pilot
64

REF PART NO. QTY DESCRIPTION NOTES

1 (850936) 1 Steering wheel Obsolete part
2 (851056) 1 Steering gear Obsolete part
3 1 steering gear
4 (851057) 1 Cover Obsolete part
5 (851069) 1 Washer Obsolete part
6 940101 3 Hexagon screw
7 941906 3 Spring washer (955892)
8 955781 3 Hexagon nut
9 (851349) 1 Key Obsolete part
10 (948823) 1 Washer Obsolete part
11 940148 1 Hexagon screw
(851016) X Steering cable L=2500mm, Obsolete part
(851017) X Steering cable Obsolete part, L=2750mm
(851018) X Steering cable Obsolete part, L=3000mm
(851019) X Steering cable Obsolete part, L=3250mm
(851020) X Steering cable Obsolete part, L=3500mm
(851021) X Steering cable Obsolete part, L=3750mm
(851022) X Steering cable Obsolete part, L=4000mm
(851023) X Steering cable Obsolete part, L=4250mm
(851024) X Steering cable Obsolete part, L=4500mm
(851025) X Steering cable Obsolete part, L=4750mm
(851026) X Steering cable Obsolete part, L=5000mm
(851027) X Steering cable Obsolete part, L=5250mm
(851028) X Steering cable Obsolete part, L=5500mm
(851029) X Steering cable Obsolete part, L=5750mm
(851030) X Steering cable Obsolete part, L=6000mm
(851031) X Steering cable Obsolete part, L=6500mm
(851032) X Steering cable Obsolete part, L=7000mm
(851033) X Steering cable Obsolete part, L=7500mm
(851034) X Steering cable Obsolete part, L=8000mm
X L=8500mm
X L=9000mm
X L=9500mm
12 (852035) X Steering cable Obsolete part, L=800mm
13 (851059) 1 Steering cylinder Obsolete part, For port mounting.
(851147) 1 Steering cylinder Obsolete part, For starboard mounting.
14 (851094) 1 Spacer sleeve Obsolete part
15 (850961) 1 Washer Obsolete part
16 (955286) 3 Hexagon screw Obsolete part
17 (851385) 1 Link arm Obsolete part
18 914169 1 Lubricating nipple
19 955906 1 Washer
20 850653 1 Bushing See group 4A
21 (850489) 1 Stop arm Obsolete part
22 (875772) 2 Ball joint kit Obsolete part
23 851326 2 Nut
24 850736 1 Control rod
25 940152 2 Hexagon nut
26 (850488) 1 Spindle arm Obsolete part, See group 4A
27 (850958) 1 Guide bracket Obsolete part
28 955541 2 Hexagon screw
29 942336 2 Spring washer
30 (850478) 1 Link rod Obsolete part
31 940154 1 Hexagon nut
32 (956511) 1 Fork Obsolete part
33 913158 1 Clevis pin
34 (907856) 1 Split pin Obsolete part
35 940097 1 Washer
36 964960 1 Split pin
37 (850674) 1 Tie rod Obsolete part, Only for twin installation., Adjustable between
740-1000mm.

7742100- 64- 13918 5330 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Steering Mechanism Roto Pilot
64

REF PART NO. QTY DESCRIPTION NOTES

(851497) 1 Tie rod end kit Obsolete part, Only for twin installation., (850673) AQD40A/280
(850776) 1 Tie rod Obsolete part, Only for twin installation., Adjustable between 540-800mm.
38 (956511) 1 Fork Obsolete part
39 913158 1 Clevis pin
40 (907856) 1 Split pin Obsolete part
41 940154 4 Hexagon nut
42 (839577) 2 Rod Obsolete part
43 (839576) 1 Tube Obsolete part, L=560mm
(850775) 1 Tube Obsolete part, Only included in 850776., L=360mm
44 (956511) 1 Fork Obsolete part
45 (907856) 1 Split pin Obsolete part
46 913158 1 Clevis pin
47 (814152) 1 Ball joint Obsolete part
48 950386 1 Lock nut Only included in 850673.

7742100- 64- 13918 5330 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Steering Mechanism, Fly Bridge Roto Pilot
64

9 10
11 2 1
16 15

7 8 5

3 4
6
22

24
23
13 14
12

19
17 18
25
21 20 28

26
31 29 31
30

27

34

33

32

33

1
31

34

32

Upd:2014-08-13 5985 7742100 -64 -13919

MD21B, AQD21B
 HeavyManuals.com
Steering Mechanism, Fly Bridge Roto Pilot
64

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (851744) 1 Control Obsolete part
2 (851902) 1 Bracket Obsolete part
3 (851903) 1 Shaft Obsolete part
4 (951947) 2 Spring pin Obsolete part
5 (851904) 1 Lever Obsolete part
6 (851901) 1 Compression spring Obsolete part
7 (851940) 1 Hex. socket screw Obsolete part
8 960137 3 Washer
9 955945 1 Toothed washer
10 955779 1 Hexagon nut
11 (851905) 1 Ring Obsolete part
12 (851941) 4 Screw L=20mm alt, Obsolete part
(851942) 4 Screw L=30mm alt, Obsolete part
(851943) 4 Screw L=40mm alt, Obsolete part
13 (955946) 4 Toothed washer Obsolete part
14 955780 4 Hexagon nut
15 (851906) 1 Handle Obsolete part
16 (851997) 1 Screw Obsolete part
17 819068 1 Washer
18 21471054 1 Bracket
19 (955243) 2 Hexagon screw Obsolete part
20 (955946) 2 Toothed washer Obsolete part
21 955780 2 Hexagon nut
22 804312 1 Cube
23 940191 1 Washer
24 17276 1 Split pin
25 (851907) 1 Bracket Obsolete part
26 (851908) 1 Bracket Obsolete part
27 850418 1 O-ring
28 (955243) 1 Hexagon screw Obsolete part
29 (955946) 1 Toothed washer Obsolete part
30 955780 1 Hexagon nut
31 X control cable See group 9
32 (851743) 1 Transfer gear Obsolete part
33 X steering cable 13918
34 X steering cylinder 13918

7742100- 64- 13919 5985 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Steering Head
64

1 23 22

7
4
3
2

23
24

26 25 6

23 22

13

9 22 8
23
12
21
20

10 9
18
1 9 17
14 16
8
9
15
23
9 19

11 8

27

Upd:2014-08-13 27025 7742100 -64 -13920

MD21B, AQD21B
 HeavyManuals.com
Steering Head
64

REF PART NO. QTY DESCRIPTION NOTES

1 850809 1 Steering head
2 1 mounting plate
3 (941462) 4 Screw Obsolete part
4 1 bracket
5 (955655) 4 Hexagon screw Obsolete part
6 (839724) 1 Bushing Obsolete part
7 1 bracket
8 2 housing
9 (828155) 4 Bushing Obsolete part
10 1 gear
11 1 gear
12 1 shaft
13 835059 1 Key
14 (839725) 2 Slide washer Obsolete part
15 1 thrust plate
16 940097 1 Washer
17 (955848) 1 Hexagon nut Obsolete part
18 (955858) 1 Nut Obsolete part
19 (955670) 2 Screw Obsolete part
20 (955668) 1 Hexagon screw Obsolete part
21 (955665) 1 Screw Obsolete part
22 (955949) 4 Toothed washer Obsolete part
23 955847 8 Hexagon nut
24 955894 4 Washer
25 960145 1 Washer
26 940154 1 Hexagon nut
27 (839727) 1 Plastic pipe Obsolete part

7742100- 64- 13920 27025 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Steering Cable Lock
64

15 11
4 14
3

12

5
10

16

13

Upd:2014-08-13 4153 7742100 -64 -13921

MD21B, AQD21B
 HeavyManuals.com
Steering Cable Lock
64

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (839544) 1 Steering lock Obsolete part
2 1 housing
3 (839531) 1 Nut Obsolete part
4 (914450) 1 Snap ring Obsolete part
5 (832476) 1 Lock nut Obsolete part
6 (839523) 1 Lock ring Obsolete part
7 (839512) 1 Lock sleeve Obsolete part
8 (839532) 1 Lock cylinder Obsolete part
9 (831606) 1 Key Indiquer code de clef quand vous ordez, Obsolete part
Bulletin P-36-4-1 P-36-4-1-EN Deleted Part No's for Keys
10 (839543) 1 Gasket Obsolete part
11 (839542) 1 Protecting cover Obsolete part
12 956060 2 Cross recessed screw
13 decal
14 (914448) 1 Snap ring Obsolete part
15 (850221) 2 Washer Obsolete part
16 (839492) 1 Plate Obsolete part

7742100- 64- 13921 4153 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Reduction Kit AQ Drive Unit 280
64

16
15
6
8
9 17
8

7
6
2

14 7 13
12

10 11

5 4 3

Upd:2014-08-13 4663 7742100 -64 -13922

MD21B, AQD21B
 HeavyManuals.com
Reduction Kit AQ Drive Unit 280
64

REF PART NO. QTY DESCRIPTION NOTES

1 (897029) 1 Bracket Obsolete part
2 (897030) 1 Steering rod Obsolete part
3 (804435) 4 Screw Obsolete part
4 955894 4 Washer
5 (950363) 4 Lock nut Obsolete part
6 (814152) 4 Ball joint Obsolete part
7 950386 4 Lock nut
8 940154 4 Hexagon nut
9 (949155) 2 Rod Obsolete part
10 1
11 955897 1 Washer
12 907849 1 Split pin
13 951739 1 Lubricating nipple
14 steering arm See group 4A
15 (814152) 1 Ball joint Obsolete part
16 950386 1 Lock nut
17 steering cable

7742100- 64- 13922 4663 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Electrical Oil Bilge Pump
90

1 3

11 12 13

18
4

19

9 6
7
5 15
8

14 17
10
16

Upd:2014-08-13 4735 7742100 -90 -13946

MD21B, AQD21B
 HeavyManuals.com
Electrical Oil Bilge Pump
90

REF PART NO. QTY DESCRIPTION NOTES

1 843114 1 Oil bilge pump 12V
2 el motor
3 (844014) 2 Carbon brush set Obsolete part
4 (844015) 1 Pump housing Obsolete part
5 844022 1 Impeller kit
6 844017 1 Wear washer
7 844016 1 Wear washer
8 1 o-ring
9 844018 1 Cardboard tube
10 844021 4 Screw
11 1 seal ring
12 1 lock washer
13 (844019) 1 Deflector ring Obsolete part
14 844020 2 Screw
15 843113 1 Cable trunk
16 1 battery terminal Not included in set of tools 821127., + (843111)
1 battery terminal Replaced by 1pc 844280 1pc 844278, (843112)
844280 2 Clip Late type
17 (844279) 1 Isolation Obsolete part, Late type black
(844278) 1 Isolation Obsolete part, Late type red
18 943707 X Hose L=3000mm
19 943471 3 Hose clamp

7742100- 90- 13946 4735 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Cooling Water Intake: 828244
90
MD21B

7
6
7

10
9 8 9
10
9

Upd:2014-08-13 4655 7742100 -90 -13923

MD21B, AQD21B
 HeavyManuals.com
Cooling Water Intake: 828244
90
MD21B

REF PART NO. QTY DESCRIPTION NOTES

1 (828244) 1 Cooling water inlet Obsolete part
2 836876 1 Strainer
3 836879 1 Nut
4 828239 1 Valve
5 (836759) 1 Hose attachment Obsolete part
6 941799 X Hose Not included in 828244.
7 961669 2 Hose clamp Not included in 828244.
8 (829513) 1 T-pipe Not included in 828244., Used when 2ea cooling water intake 828244
are installed., Obsolete part
9 961669 X Hose clamp Not included in 828244., Used when 2ea cooling water intake 828244
are installed.
10 941799 X Hose Not included in 828244., Used when 2ea cooling water intake 828244
are installed.

7742100- 90- 13923 4655 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Cooling Water Intake: 841723
90
MD21B

7
6
7

10
9 8 9
10
9

Upd:2014-08-13 4655 7742100 -90 -13923B

MD21B, AQD21B
 HeavyManuals.com
Cooling Water Intake: 841723
90
MD21B

REF PART NO. QTY DESCRIPTION NOTES

1 841723 1 Cooling water inlet
2 836876 1 Strainer
3 836879 1 Nut
4 828239 1 Valve
5 828696 1 Hose attachment
8 (841771) 1 T-pipe Obsolete part
9 961669 2 Hose clamp
10 949315 X Rubber hose

7742100- 90- 13923B 4655 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Separate Exhaust Outlet and Water Intake: A
90

7
5 6
1

8 4
5

25

2
9

10

11

16
15
14 13 12

17

21 23
18
24

27
22
19
20
26
26
28

29

Upd:2014-08-13 3742 7742100 -90 -13926

MD21B, AQD21B
 HeavyManuals.com
Separate Exhaust Outlet and Water Intake: A
90

REF PART NO. QTY DESCRIPTION NOTES

1 818358 1 Exhaust riser
2 952078 1 Plug
3 952078 1 Plug
4 819727 1 Gasket See group 2B
5 941908 5 Spring washer
6 (941940) 1 Screw Obsolete part
7 (941338) X Locking wire Obsolete part, L=100mm
8 959238 4 Hex. socket screw (955317)
9 943480 2 Hose clamp (951797)
10 952980 X Hose L=300mm
11 943482 2 Hose clamp (951799)
12 (826754) 1 Exhaust riser Obsolete part
13 (814051) 1 Nut Obsolete part
14 (806670) 1 Gasket Obsolete part
15 925073 1 O-ring
16 (818468) 1 Exhaust riser Obsolete part
17 952980 X Hose L=250mm
18 (817887) 1 Exhaust outlet Obsolete part
19 (813995) 1 Strainer Obsolete part
20 804269 4 Drive screw
21 (942295) 1 O-ring Obsolete part
22 814035 1 Nut
23 961669 2 Hose clamp
24 941799 X Hose L=1000mm

7742100- 90- 13926 3742 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Separate Exhaust Outlet and Water Intake: MD21
90

7
5 6
1

8 4
5

25

2
9

10

11

16
15
14 13 12

17

21 23
18
24

27
22
19
20
26
26
28

29

Upd:2014-08-13 3742 7742100 -90 -13926B

MD21B, AQD21B
 HeavyManuals.com
Separate Exhaust Outlet and Water Intake: MD21
90

REF PART NO. QTY DESCRIPTION NOTES

9 943480 2 Hose clamp (951797)
10 952980 X Hose L=300mm
11 961673 2 Hose clamp
12 (818469) 1 Exhaust riser Obsolete part
13 (814051) 1 Nut Obsolete part
14 (806670) 1 Gasket Obsolete part
15 925073 1 O-ring
16 (818468) 1 Exhaust riser Obsolete part
17 952980 X Hose L=250mm
18 (817887) 1 Exhaust outlet Obsolete part
19 (813995) 1 Strainer Obsolete part
20 804269 4 Drive screw
21 (125334) 1 O-ring Obsolete part
22 814035 1 Nut
23 961669 2 Hose clamp
24 941799 X Hose L=1000mm
25 (180293) 1 Elbow nipple Obsolete part, See group 2B
26 961668 2 Hose clamp
27 944386 X Rubber hose
28 836879 1 Nut
29 (829315) 1 Grommet Obsolete part

7742100- 90- 13926B 3742 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Water-cooled Exhaust Riser
90
MD21B

2
9

6 8
7

4
5
6

10

Upd:2014-08-13 6386 7742100 -90 -13934

MD21B, AQD21B
 HeavyManuals.com
Water-cooled Exhaust Riser
90
MD21B

REF PART NO. QTY DESCRIPTION NOTES

1 (840390) 1 Exhaust riser Obsolete part
2 1 exhaust riser
3 (952359) 1 Plug Obsolete part
4 819727 1 Gasket
5 955317 4 Hexagon screw
6 941908 5 Spring washer
7 (924089) 1 Stud Obsolete part
8 963107 1 Lock nut
9 (180293) 1 Elbow nipple See group 2B, Obsolete part
10 exhaust manifold See group 2B

7742100- 90- 13934 6386 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Water Cooled Exhaustline
90
MD21B

2
9
7

1 6

Upd:2014-08-13 3743 7742100 -90 -13942

MD21B, AQD21B
 HeavyManuals.com
Water Cooled Exhaustline
90
MD21B

REF PART NO. QTY DESCRIPTION NOTES

1 (827873) 1 Hull fitting Obsolete part
2 827876 1 Nut
3 828465 X Exhaust hose
4 961673 2 Hose clamp
5 (829315) 1 Grommet MD21A, MD21B for separate water outlet., Obsolete part
6 836879 1 Nut
7 961668 2 Hose clamp
8 944386 X Rubber hose
9 1 elbow nipple See group 2A

7742100- 90- 13942 3743 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Water Cooled Exhaust Muffler with Installation Components
90
MD21B

8
2

Upd:2014-08-13 4393 7742100 -90 -13944

MD21B, AQD21B
 HeavyManuals.com
Water Cooled Exhaust Muffler with Installation Components
90
MD21B

REF PART NO. QTY DESCRIPTION NOTES

1 828065 1 Muffler
2 1 cover
3 961678 1 Hose clamp
4 828060 1 Exhaust hose
5 1 cover
6 828061 1 Retainer
7 961672 X Hose clamp
8 828465 X Exhaust hose (833756)
9 828255 1 Riser

7742100- 90- 13944 4393 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Water Cooled Exhaust Muffler with Installation Components:
90 MB21B/110S

8
2

Upd:2014-08-13 4393 7742100 -90 -13945

MD21B, AQD21B
 HeavyManuals.com
Water Cooled Exhaust Muffler with Installation Components:
MB21B/110S 90

REF PART NO. QTY DESCRIPTION NOTES

1 828065 1 Muffler
2 1 cover
3 961678 4 Hose clamp
4 828060 1 Exhaust hose
5 1 cover
6 828061 2 Retainer
7 961672 X Hose clamp
8 828465 X Exhaust hose (833756)
9 828255 1 Riser

7742100- 90- 13945 4393 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Connecting Components Fuel Filter - Fuel Tank: MD21B/110S
90
MD21B

7 6

1
2 3 4

3
4

4
5

Upd:2014-08-13 3041 7742100 -90 -13947

MD21B, AQD21B
 HeavyManuals.com
Connecting Components Fuel Filter - Fuel Tank: MD21B/110S
90
MD21B

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 954305 X Tube
Bulletin P-23-4-3 P-23-4-3-EN Fuel Line 5/16”, Copper Pipe
2 824599 2 Tap
3 954336 4 Nipple
4 954322 6 Fitting nut
5 (954343) 2 Elbow nipple Obsolete part
6 951189 X Clamp
7 955139 X Cross recessed screw

7742100- 90- 13947 3041 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Tank Meter Kit for Fuel and Drinking Water: 834399
90

6 1

5 3

10

Upd:2014-08-13 3949 7742100 -90 -13948

MD21B, AQD21B
 HeavyManuals.com
Tank Meter Kit for Fuel and Drinking Water: 834399
90

REF PART NO. QTY DESCRIPTION NOTES

1 (834399) 1 Tank gauge For fuel., Obsolete part
2 (834378) 1 Tank gauge Obsolete part
3 19923 1 Bulb
4 808175 1 Lamp socket
5 837999 1 Sensor
6 956078 4 Cross recessed screw L=16mm
956081 1 Cross recessed screw L=25mm
7 834481 5 Gasket
8 89865 1 Gasket
9 834480 1 Flange
10 X cables and cable terminals See group 3

7742100- 90- 13948 3949 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Tank Meter Kit for Fuel and Drinking Water: 834400
90

6 1

5 3

10

Upd:2014-08-13 3949 7742100 -90 -13948B

MD21B, AQD21B
 HeavyManuals.com
Tank Meter Kit for Fuel and Drinking Water: 834400
90

REF PART NO. QTY DESCRIPTION NOTES

1 (834400) 1 Tank gauge For drinking water., Obsolete part
2 (834380) 1 Tank gauge Obsolete part
3 19923 1 Bulb
4 808175 1 Lamp socket
5 834389 1 Tank sensor
6 956078 4 Cross recessed screw L=16mm
956081 1 Cross recessed screw L=25mm
7 834481 5 Gasket
8 89865 1 Gasket
9 834480 1 Flange
10 X cables and cable terminals See group 3

7742100- 90- 13948B 3949 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Control, Side Mount: A
90

12
1

19
9 4
16
8
13

17
10
18
5

11

7
15
2
3

14 20

5
6

Upd:2014-08-13 4806 7742100 -90 -13949

MD21B, AQD21B
 HeavyManuals.com
Control, Side Mount: A
90

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 839515 1 Mounting kit Repl by 851604
2 839518 1 Cover
3 839520 1 Hand lever
5 (946786) 1 Set screw M5, Obsolete part
839693 1 Lock screw M8
6 955142 4 Cross recessed screw
7 839469 1 Control Top-mounted replaced by 851600.,
Side-mounted replaced by 851601.
13952
8 839641 1 Neutral position con Main station.
9 (839619) 1 Cable kit Obsolete part
10 850200 1 Toggle switch
11 X cables and cable terminals See group 3

12 1501832 1 Relay (839367)

13 946177 2 Cross recessed screw
14 947536 2 Hexagon nut
15 1 Coupling piece D21
16 828414 1 Neutral position con Main station.
828378 1 Switch Second station.
17 850200 1 Toggle switch
18 X cables and cable terminals See group 3

19 946177 2 Cross recessed screw

20 947536 2 Hexagon nut

7742100- 90- 13949 4806 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Control, Side Mount: B
90

12
1

19
9 4
16
8
13

17
10
18
5

11

7
15
2
3

14 20

5
6

Upd:2014-08-13 4806 7742100 -90 -13949B

MD21B, AQD21B
 HeavyManuals.com
Control, Side Mount: B
90

REF PART NO. QTY DESCRIPTION NOTES

1 839516 1 Mounting kit For sail boat., Repl by 851605
2 839518 1 Cover
4 839521 1 Hand lever For sail boat.
5 (946786) 1 Set screw M5, Obsolete part
839693 1 Lock screw M8
6 955142 4 Cross recessed screw
7 839469 1 Control Top-mounted replaced by 851600., Side-mounted replaced
by 851601.
8 839641 1 Neutral position con Main station.
9 (839619) 1 Cable kit Obsolete part
10 850200 1 Toggle switch
11 X cables and cable terminals See group 3

12 1501832 1 Relay (839367)

13 946177 2 Cross recessed screw
14 947536 2 Hexagon nut
15 1 Coupling piece D21
16 828414 1 Neutral position con Main station.
828378 1 Switch Second station.
17 850200 1 Toggle switch
18 X cables and cable terminals See group 3

19 946177 2 Cross recessed screw

20 947536 2 Hexagon nut

7742100- 90- 13949B 4806 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Control for Top Installation: A
90

1
2

4
12

15

5
20 10
8

21
16 7

18 22 28
17
27

9
25
26 24

3
19

11

10 14

13
23

Upd:2014-08-13 4805 7742100 -90 -13950

MD21B, AQD21B
 HeavyManuals.com
Control for Top Installation: A
90

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 839470 1 Mounting kit Repl by 851602
2 839472 1 Cover
3 839474 1 Plate
4 839475 1 Hand lever
5 (946786) 1 Set screw M5, Obsolete part
839693 1 Lock screw M8
6 (839480) 1 Bracket Marked 839480, Obsolete part
(839481) 1 Bracket Marked 839481, Obsolete part
7 955244 4 Hexagon screw
8 (955946) 4 Toothed washer Obsolete part
9 947671 2 Hex. socket screw
10 955780 6 Hexagon nut
11 960138 2 Washer
12 947672 2 Hex. socket screw
13 955781 2 Hexagon nut
14 960139 2 Washer
15 839469 1 Control Top-mounted replaced by 851600., TypeNo
A1,colour marked=light blue.
13952
16 839641 1 Neutral position con Main station.
17 (839619) 1 Cable kit Obsolete part
18 850200 1 Toggle switch
19 X cables and cable terminals See group 3

20 1501832 1 Relay (839367)

21 946177 2 Cross recessed screw
22 947536 2 Hexagon nut
23 1 Coupling piece D21
24 828414 1 Neutral position con Main station.
828378 1 Switch Second station.
25 850200 1 Toggle switch
26 X cables and cable terminals See group 3

27 946177 2 Cross recessed screw

28 947536 2 Hexagon nut

7742100- 90- 13950 4805 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Control for Top Installation: B
90

1
2

4
12

15

5
20 10
8

21
16 7

18 22 28
17
27

9
25
26 24

3
19

11

10 14

13
23

Upd:2014-08-13 4805 7742100 -90 -13950B

MD21B, AQD21B
 HeavyManuals.com
Control for Top Installation: B
90

REF PART NO. QTY DESCRIPTION NOTES

1 839471 1 Mounting kit Repl by 851603
2 839477 1 Cover
3 839479 1 Plate
4 839475 2 Hand lever
5 (946786) 2 Set screw M5, Obsolete part
839693 2 Lock screw M8
6 (839480) 2 Bracket Marked 839480, Obsolete part
(839481) 2 Bracket Marked 839481, Obsolete part
7 955244 8 Hexagon screw
8 (955946) 8 Toothed washer Obsolete part
9 947671 2 Hex. socket screw
10 955780 10 Hexagon nut
11 960138 2 Washer
12 947672 4 Hex. socket screw
13 955781 4 Hexagon nut
14 960139 4 Washer
15 839469 2 Control Top-mounted replaced by 851600., TypeNo A1,colour
marked=light blue.
16 839641 2 Neutral position con Main station.
17 (839619) 2 Cable kit Obsolete part
18 850200 2 Toggle switch
19 X cables and cable terminals See group 3

20 1501832 2 Relay (839367)

21 946177 4 Cross recessed screw
22 947536 4 Hexagon nut
23 2 Coupling piece D21
24 828414 2 Neutral position con Main station.
828378 2 Switch Second station.
25 850200 2 Toggle switch
26 X cables and cable terminals See group 3

27 946177 4 Cross recessed screw

28 947536 4 Hexagon nut

7742100- 90- 13950B 4805 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Control, Side Mount
90

11 9
10

8
7
6
20 5
21 19

15
14

18
16
18
17 13
12

11
10

20
21

27
24 25

28

22

29

23
2
3

4
26

Upd:2014-08-13 5917 7742100 -90 -13951

MD21B, AQD21B
 HeavyManuals.com
Control, Side Mount
90

REF PART NO. QTY DESCRIPTION NOTES

1 851740 1 Control
2 1 cover
3 1 cover
4 1
5 1 shaft
6 (839701) 1 Bushing Obsolete part
7 1 link
8 839699 1 Roller
9 1 eccenter
10 (839635) 2 Washer Obsolete part
11 (839637) 2 Screw Obsolete part
12 (839639) 1 Breaker arm Obsolete part
13 (839633) 1 Engagement lever Obsolete part
14 839700 1 Retainer
15 839664 1 Screw
16 (839666) 1 Washer Obsolete part
17 963104 1 Lock nut
18 2
19 839632 1 Button
20 839638 2 Cube
21 17253 2 Split pin
22 839520 1 Hand lever
23 839693 1 Lock screw
24 (3576182) 2 Cover Obsolete part
25 1 decal
26 (3576249) 1 Decal Obsolete part
27 (851936) 4 Rubber expander Obsolete part
28 (851937) 4 Screw Obsolete part
29 (3552006) 1 Allen wrench Obsolete part

7742100- 90- 13951 5917 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Control Mechanism
90

11 1
4 12
5
2
23
3
19

18
17 18
17

16
15
13
6
9 7
10 14

21
22

20
8

Upd:2014-08-13 3590 7742100 -90 -13952

MD21B, AQD21B
 HeavyManuals.com
Control Mechanism
90

REF PART NO. QTY DESCRIPTION NOTES

1 839469 1 Control Top-mounted replaced by 851600., Side-mounted replaced by 851601.
2 1 housing
3 1 shaft
4 (839635) 1 Washer Obsolete part
5 (839637) 1 Screw Obsolete part
6 (839668) 1 Link arm Obsolete part
7 839700 1 Retainer
8 (839667) 1 Washer Obsolete part
9 839664 1 Screw
10 1
11 (839636) 1 Eccentric Obsolete part
12 839699 1 Roller
13 (839633) 1 Engagement lever Obsolete part
14 (839639) 1 Breaker arm Obsolete part
15 (839635) 1 Washer Obsolete part
16 (839637) 1 Screw Obsolete part
17 839638 2 Cube
18 17253 2 Split pin
19 839632 1 Button
20 839640 1 Vibration damper
21 (839666) 1 Washer Obsolete part
22 963104 1 Lock nut
23 (839701) 1 Bushing Obsolete part

7742100- 90- 13952 3590 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Control Cables
90

Upd:2014-08-13 2239 7742100 -90 -13953

MD21B, AQD21B
 HeavyManuals.com
Control Cables
90

REF PART NO. QTY DESCRIPTION NOTES

1 control cable for maneuvering the aquamatic drive unit, the hydraulically
operated reverse gear and also for the
(820254) X Control cable L=1800mm,
Obsolete part
(820255) X Control cable Obsolete part,
L=2100mm
(820257) X Control cable Obsolete part,
L=2700mm
(820258) X Control cable Obsolete part,
L=3000mm
(820259) X Control cable Obsolete part,
L=3300mm
(804457) X Control cable Obsolete part,
L=3600mm
(804458) X Control cable Obsolete part,
L=3900mm
(804419) X Control cable Obsolete part,
L=4200mm
(809997) X Control cable Obsolete part,
L=4500mm
(804315) X Control cable Obsolete part,
L=4800mm
(804364) X Control cable Obsolete part,
L=5100mm
804361 X Control cable L=5500mm
(809998) X Control cable Obsolete part,
L=5900mm
(813913) X Control cable Obsolete part,
L=6100mm
804440 X Control cable L=6400mm
(820260) X Control cable Obsolete part,
L=6700mm
(809999) X Control cable Obsolete part,
L=7000mm
(820261) X Control cable Obsolete part,
L=7300mm
(804316) X Control cable Obsolete part,
L=7500mm
813907 X Control cable L=7900mm
(813908) X Control cable Obsolete part,
L=8500mm
(814022) X Control cable Obsolete part,
L=8800mm
(814023) X Control cable Obsolete part,
L=9500mm
(827719) X Control cable Obsolete part,
L=11300mm
(827720) X Control cable Obsolete part,
L=11600mm
827721 X Control cable L=11900mm
(827722) X Control cable Obsolete part,
L=12200mm
(827723) X Control cable Obsolete part,
L=12500mm
(828050) X Control cable Obsolete part,
L=13100mm
2 control cable for maneuvering Volvo Penta reduction reverse gear.

(820301) X Control cable Obsolete part,

L=2100mm
(820303) X Control cable Obsolete part,
L=2700mm

7742100- 90- 13953 2239 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Control Cables
90

REF PART NO. QTY DESCRIPTION NOTES

(820305) X Control cable Obsolete part,
L=3300mm
(819786) X Control cable Obsolete part,
L=3900mm
(819787) X Control cable Obsolete part,
L=4500mm

7742100- 90- 13953 2239 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Alarm Unit: 827940
90

2
3

Upd:2014-08-13 3024 7742100 -90 -13924

MD21B, AQD21B
 HeavyManuals.com
Alarm Unit: 827940
90

REF PART NO. QTY DESCRIPTION NOTES

1 (827940) 1 Alarm kit 12V, Obsolete part
2 831625 1 Thermo monitor 12V
3 827597 1 Horn unit
4 948210 2 Cable tie (827353)
5 X cables and cable See group 3
terminals

7742100- 90- 13924 3024 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Alarm Unit: 827941
90

2
3

Upd:2014-08-13 3024 7742100 -90 -13924B

MD21B, AQD21B
 HeavyManuals.com
Alarm Unit: 827941
90

REF PART NO. QTY DESCRIPTION NOTES

1 (827941) 1 Alarm kit 24V, Obsolete part
2 (831627) 1 Thermo monitor 24V, Obsolete part
3 827597 1 Horn unit
4 948210 2 Cable tie (827353)
5 X cables and cable See group 3

7742100- 90- 13924B 3024 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Extra Instrument Panel
90

4
3

Upd:2014-08-13 5371 7742100 -90 -13925

MD21B, AQD21B
 HeavyManuals.com
Extra Instrument Panel
90

REF PART NO. QTY DESCRIPTION NOTES

1 (843604) 1 Instrument panel Obsolete part
2 (837539) 1 Instrument plate Obsolete part
3 (842659) 1 Cover washer Obsolete part
4 944540 4 Screw
5 845071 2 Plug

7742100- 90- 13925 5371 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Coupling Flange 5'': 828390
90

6 3 4

2
1

Upd:2014-08-13 4623 7742100 -90 -13927

MD21B, AQD21B
 HeavyManuals.com
Coupling Flange 5'': 828390
90

REF PART NO. QTY DESCRIPTION NOTES

1 828390 1 Clamp coupling 30mm hole for propeller shaft.
2 955693 4 Hexagon screw L=38mm
955691 4 Hexagon screw L=25mm
3 941909 4 Spring washer
4 950375 4 Lock nut
5 948670 8 Hex. socket screw
6 947345 8 Washer

7742100- 90- 13927 4623 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Coupling Flange 5'': 827957
90

6 3 4

2
1

Upd:2014-08-13 4623 7742100 -90 -13927B

MD21B, AQD21B
 HeavyManuals.com
Coupling Flange 5'': 827957
90

REF PART NO. QTY DESCRIPTION NOTES

1 827957 1 Clamp coupling 35mm hole for propeller shaft.
2 955693 4 Hexagon screw L=38mm
955691 4 Hexagon screw L=25mm
3 941909 4 Spring washer
4 950375 4 Lock nut
5 948670 8 Hex. socket screw
6 947345 8 Washer

7742100- 90- 13927B 4623 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Coupling Flange 5'': 828145
90

6 3 4

2
1

Upd:2014-08-13 4623 7742100 -90 -13927C

MD21B, AQD21B
 HeavyManuals.com
Coupling Flange 5'': 828145
90

REF PART NO. QTY DESCRIPTION NOTES

1 828145 1 Clamp coupling 40mm hole for propeller shaft.
2 955693 4 Hexagon screw L=38mm
955691 4 Hexagon screw L=25mm
3 941909 4 Spring washer
4 950375 4 Lock nut
5 948670 8 Hex. socket screw
6 947345 8 Washer

7742100- 90- 13927C 4623 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Coupling Flange 5'': 828147
90

6 3 4

2
1

Upd:2014-08-13 4623 7742100 -90 -13927D

MD21B, AQD21B
 HeavyManuals.com
Coupling Flange 5'': 828147
90

REF PART NO. QTY DESCRIPTION NOTES

1 828147 1 Clamp coupling 45mm hole for propeller shaft.
2 955693 4 Hexagon screw L=38mm
955691 4 Hexagon screw L=25mm
3 941909 4 Spring washer
4 950375 4 Lock nut
5 948670 8 Hex. socket screw
6 947345 8 Washer

7742100- 90- 13927D 4623 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Propeller Shaft Flange 5'': 828388
90

2
1

Upd:2014-08-13 4624 7742100 -90 -13928

MD21B, AQD21B
 HeavyManuals.com
Propeller Shaft Flange 5'': 828388
90

REF PART NO. QTY DESCRIPTION NOTES

1 (828388) 1 Shaft flange 30mm hole for propeller shaft., Obsolete part
2 955692 4 Hexagon screw L=32mm
3 955883 4 Castle nut
4 907834 4 Split pin
5 941909 4 Spring washer
6 907617 1 Taper pin

7742100- 90- 13928 4624 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Propeller Shaft Flange 5'': 829279
90

2
1

Upd:2014-08-13 4624 7742100 -90 -13928B

MD21B, AQD21B
 HeavyManuals.com
Propeller Shaft Flange 5'': 829279
90

REF PART NO. QTY DESCRIPTION NOTES

1 (829279) 1 Clutch flange Obsolete part, 35mm hole for propeller shaft.
2 955692 4 Hexagon screw L=32mm
955691 4 Hexagon screw L=25mm
3 955883 4 Castle nut
4 907834 4 Split pin
5 941909 4 Spring washer
6 907617 1 Taper pin

7742100- 90- 13928B 4624 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Propeller Shaft Flange 5'': 829281
90

2
1

Upd:2014-08-13 4624 7742100 -90 -13928C

MD21B, AQD21B
 HeavyManuals.com
Propeller Shaft Flange 5'': 829281
90

REF PART NO. QTY DESCRIPTION NOTES

1 (829281) 1 Clutch half Obsolete part, 40mm hole for propeller shaft.
2 955692 4 Hexagon screw L=32mm
955691 4 Hexagon screw L=25mm
3 955883 4 Castle nut
4 907834 4 Split pin
5 941909 4 Spring washer
6 907617 1 Taper pin

7742100- 90- 13928C 4624 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Propeller Shaft Flange 5'': 819105
90

2
1

Upd:2014-08-13 4624 7742100 -90 -13928D

MD21B, AQD21B
 HeavyManuals.com
Propeller Shaft Flange 5'': 819105
90

REF PART NO. QTY DESCRIPTION NOTES

1 (819105) 1 Clutch flange Obsolete part, Center drilled.
2 955692 4 Hexagon screw L=32mm
955691 4 Hexagon screw L=25mm
3 955883 4 Castle nut
4 907834 4 Split pin
5 941909 4 Spring washer
6 907617 1 Taper pin

7742100- 90- 13928D 4624 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Propeller, Bronze Zinc Anode: A
90

Upd:2014-08-13 6081 7742100 -90 -13929

MD21B, AQD21B
 HeavyManuals.com
Propeller, Bronze Zinc Anode: A
90

REF PART NO. QTY DESCRIPTION NOTES

1 (871506) 1 Propeller Obsolete part
(817461) 1 Propeller Obsolete part
(817424) 1 Propeller Obsolete part
(871507) 1 Propeller Obsolete part
(816878) 1 Propeller Obsolete part
871509 1 Propeller
(871510) 1 Propeller Obsolete part
(871512) 1 Propeller Obsolete part
817126 1 Propeller
(871518) 1 Propeller Obsolete part
871520 1 Propeller
2 1
(871204) 1 Propeller Obsolete part
(871017) 1 Propeller Obsolete part
(871014) 1 Propeller Obsolete part
(871020) 1 Propeller Obsolete part
871022 1 Propeller
871025 1 Propeller
871034 1 Propeller
1
(871037) 1 Propeller Obsolete part
(871043) 1 Propeller Obsolete part
(871045) 1 Propeller Obsolete part
(871046) 1 Propeller Obsolete part
(871048) 1 Propeller Obsolete part
(871049) 1 Propeller Obsolete part
(871051) 1 Propeller Obsolete part
(871052) 1 Propeller Obsolete part
(871055) 1 Propeller Obsolete part
(871056) 1 Propeller Obsolete part
(871069) 1 Propeller Obsolete part
(871072) 1 Propeller Obsolete part
(871075) 1 Propeller Obsolete part
(871076) 1 Propeller Obsolete part
(871078) 1 Propeller Obsolete part
1
871079 1 Propeller
1
871086 1 Propeller
(871092) 1 Propeller Obsolete part
871107 1 Propeller
(871215) 1 Propeller Obsolete part
(871094) 1 Propeller Obsolete part
(871109) 1 Propeller Obsolete part
(871096) 1 Propeller Obsolete part
871090 1 Propeller
(871527) 1 Propeller Obsolete part
(871098) 1 Propeller Obsolete part
871102 1 Propeller
(871112) 1 Propeller Obsolete part
(871114) 1 Propeller Obsolete part
(871128) 1 Propeller Obsolete part
(871149) 1 Propeller Obsolete part
871150 1 Propeller
(871157) 1 Propeller Obsolete part
871148 1 Propeller
1 Propeller
(871166) 1 Propeller Obsolete part
(871171) 1 Propeller Obsolete part
871193 1 Propeller
(871190) 1 Propeller Obsolete part

7742100- 90- 13929 6081 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Propeller, Bronze Zinc Anode: A
90

REF PART NO. QTY DESCRIPTION NOTES

(871195) 1 Propeller Obsolete part
(871196) 1 Propeller Obsolete part
1
1
3 833913 1 Zinc anode For shaft diam. 25mm.
833913 1 Zinc anode For shaft diam. 30mm.
833915 1 Zinc anode For shaft diam. 35mm.
828140 1 Zinc anode For shaft diam. 40mm.
828140 1 Zinc anode For shaft diam. 45mm.

7742100- 90- 13929 6081 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Propeller, Bronze Zinc Anode: B
90

Upd:2014-08-13 6081 7742100 -90 -13929B

MD21B, AQD21B
 HeavyManuals.com
Propeller, Bronze Zinc Anode: B
90

REF PART NO. QTY DESCRIPTION NOTES

2 (871210) 1 Propeller Obsolete part
1
(871335) 1 Propeller Obsolete part
1
(871213) 1 Propeller Obsolete part
1
1
3 833913 1 Zinc anode For shaft diam. 25mm.
833913 1 Zinc anode For shaft diam. 30mm.
833915 1 Zinc anode For shaft diam. 35mm.
828140 1 Zinc anode For shaft diam. 40mm.
828140 1 Zinc anode For shaft diam. 45mm.

7742100- 90- 13929B 6081 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Propeller, 280 Drive Unit: A
90

Upd:2014-08-13 6082 7742100 -90 -13930

MD21B, AQD21B
 HeavyManuals.com
Propeller, 280 Drive Unit: A
90

REF PART NO. QTY DESCRIPTION NOTES

1 (813279) 1 Propeller Obsolete part
(897626) 1 Propeller Obsolete part
(813282) 1 Propeller Obsolete part
813284 1 Propeller
(813286) 1 Propeller Obsolete part
814626 1 Propeller High speed
(813290) 1 Propeller Obsolete part
814627 1 Propeller High speed
(813364) 1 Propeller Obsolete part
814628 1 Propeller High speed
(850781) 1 Propeller Cup, high speed, Obsolete part
(813304) 1 Propeller Obsolete part
814629 1 Propeller High speed
(850782) 1 Propeller Cup, high speed, Obsolete part
851138 1 Propeller For reverse gear Volvo Penta., High speed
839569 1 Propeller High speed
(850783) 1 Propeller Cup, high speed, Obsolete part
851141 1 Propeller For reverse gear Volvo Penta., High speed
813296 1 Propeller
(813298) 1 Propeller Obsolete part
813316 1 Propeller
(813344) 1 Propeller Obsolete part
814611 1 Propeller High speed
(897471) 1 Propeller Obsolete part
814612 1 Propeller High speed
851124 1 Propeller Long hub., High speed
850864 1 Propeller Long hub., High speed
850866 1 Propeller Long hub., High speed
(852086) 1 Propeller, 25X17 Long hub., Rostfri-Stainless, Obsolete part
851035 1 Propeller Long hub., High speed
(832604) 1 Propeller Obsolete part
851037 1 Propeller Long hub., High speed
(832606) 1 Propeller Obsolete part
851039 1 Propeller Long hub., High speed
(852477) 1 Propeller Long hub., Cup, high speed, Obsolete part
852612 1 Propeller Long hub., High speed
852633 1 Propeller Long hub., High speed
852490 1 Propeller Long hub., High speed

7742100- 90- 13930 6082 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Propeller, 280 Drive Unit: B
90

Upd:2014-08-13 6082 7742100 -90 -13930B

MD21B, AQD21B
 HeavyManuals.com
Propeller, 280 Drive Unit: B
90

REF PART NO. QTY DESCRIPTION NOTES

1 (813280) 1 Propeller Obsolete part
(813283) 1 Propeller Obsolete part
813285 1 Propeller
(813287) 1 Propeller Obsolete part
814631 1 Propeller High speed
(813291) 1 Propeller Obsolete part
814632 1 Propeller High speed
(813365) 1 Propeller Obsolete part
814633 1 Propeller High speed
(813368) 1 Propeller Obsolete part
814634 1 Propeller High speed
851139 1 Propeller For reverse gear Volvo Penta., High speed
839570 1 Propeller High speed
851142 1 Propeller For reverse gear Volvo Penta., High speed
(852137) 1 Local part, 5X21 For reverse gear Volvo Penta., Rostfri-Stainless, Obsolete part
813297 1 Propeller
813317 1 Propeller
(813345) 1 Propeller Obsolete part
814615 1 Propeller High speed
(813301) 1 Propeller Obsolete part
814616 1 Propeller High speed
851125 1 Propeller Long hub., High speed
850865 1 Propeller Long hub., High speed
(852138) 1 Propeller Long hub., Rostfri-Stainless, Obsolete part
850867 1 Propeller Long hub., High speed
(852155) 1 Local part, 25X17 Long hub., Rostfri-Stainless, Obsolete part
851036 1 Propeller Long hub., High speed
(832605) 1 Propeller Obsolete part
851038 1 Propeller Long hub., High speed
(832607) 1 Propeller Obsolete part
851040 1 Propeller Long hub., High speed
(852493) 1 Propeller Long hub., Cup, high speed, Obsolete part
852613 1 Propeller Long hub., High speed
852634 1 Propeller Long hub., High speed
852491 1 Propeller Long hub., High speed

7742100- 90- 13930B 6082 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Trim Tabs: 851350
90

1 2

6
5
7 15

11
14

13
12

9
10

19
10
17

18

16

Upd:2014-08-13 6017 7742100 -90 -13931

MD21B, AQD21B
 HeavyManuals.com
Trim Tabs: 851350
90

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (851350) 1 Trimming raft Obsolete part
2 850957 1 Electromechanical li
13935
3 (850375) 1 Instrument panel Obsolete part
13937
4 956568 4 Hex. socket screw
5 (827267) 2 Ball socket Obsolete part
6 (943793) 2 Spring pin Obsolete part
7 (827268) 2 Locking wire Obsolete part
8 (827544) 2 Push rod Obsolete part
9 (963559) 2 Hexagon screw Obsolete part
10 966170 2 Lock nut
11 (827264) 2 Housing Obsolete part
12 (827269) 2 Gasket Obsolete part
13 (827265) 2 Flange Obsolete part
14 191844 12 Hexagon screw
15 950364 12 Lock nut
16 (827324) 2 Trimming raft Obsolete part
17 (943790) 24 Screw Obsolete part
18 832598 2 Zinc anode
19 (940171) 4 Hexagon screw Obsolete part

7742100- 90- 13931 6017 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Mechanical Lift Device: 850381
90

1
28

38 29 4

42

31
19
32

37 36 12
35
33

34
5

18 2
41 40
39
30 40A

45
6

24 25 12

17
22
44 20
15
13
14 43 3
16
2
26
23 21

11 7
10 9
8
27

Upd:2014-08-13 4981 7742100 -90 -13932

MD21B, AQD21B
 HeavyManuals.com
Mechanical Lift Device: 850381
90

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 850381 1 Electromechanical li Replaced by 850726., 12V early type
(850087) (850381)
2 (839433) 1 Lifting device Obsolete part
3 897658 1 Housing
4 839403 1 Upper section
5 875351 1 Vise rod
6 875352 1 Worm gear kit
7 897664 1 Nut
8 814219 1 Pressure plate
9 814218 1 Tab washer
10 925060 1 O-ring
11 955977 1 O-ring
12 19280 2 Ball bearing
13 181424 1 Ball bearing
14 914515 1 Snap ring
15 (897667) 1 Bushing Obsolete part
16 897762 1 Guide ring
17 914446 1 Snap ring
18 909838 1 Flat key
19 897666 1 Spring
20 839430 1 Electrical motor Replaced by 850046, 850041., 12V early
type
850046 1 Electrical motor 12V later prod
21 (814456) 4 Nut Obsolete part
22 (944596) 1 Pin Obsolete part
23 839275 1 Brush set
(839586) 1 Spare parts kit Obsolete part
24 (150205) 2 Hexagon nut Obsolete part
25 (814456) 2 Nut Obsolete part
26 814304 1 Gasket
27 832153 1 Support ring
28 955995 1 O-ring
29 959327 2 Hex. socket screw
30 (951672) 2 Lock nut Obsolete part
31 839330 1 Cardboard tube
32 946438 1 O-ring
33 955980 2 O-ring
34 (839331) 1 Relay housing Obsolete part
35 1501832 1 Relay 12V (839367)
36 (1504952) 1 Relay Obsolete part, 12V (831725)
37 (897848) 1 Switch Obsolete part
38 (942704) 3 Cross recessed screw Obsolete part
39 (839368) 1 Cable trunk Obsolete part, Early type
(850039) 1 Cable trunk Obsolete part, Late type
40 (850665) 1 Cable trunk Obsolete part
40A 897815 1 Temperature sensor
41 (839370) 1 Cable trunk Obsolete part
43 956568 2 Hex. socket screw See group 4A
44 (839445) 1 Instrument panel, instrument panel Obsolete part, 12V earlier prod
13936
13936
(850375) 1 Instrument panel, instrument panel Obsolete part, 12V later prod
13937
13937
45 839177 X Extension cable'verl Replaced by 839178., L=12500mm
(839178) X Extension cable'verl Obsolete part, L=2500mm
839179 X Cable Replaced by 839180., L=5000mm
839180 X Extension cable'verl L=7000mm

7742100- 90- 13932 4981 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Mechanical Lift Device: 850726
90

1
28

38 29 4

42

31
19
32

37 36 12
35
33

34
5

18 2
41 40
39
30 40A

45
6

24 25 12

17
22
44 20
15
13
14 43 3
16
2
26
23 21

11 7
10 9
8
27

Upd:2014-08-13 4981 7742100 -90 -13932B

MD21B, AQD21B
 HeavyManuals.com
Mechanical Lift Device: 850726
90

REF PART NO. QTY DESCRIPTION NOTES

1 1 12V later prod
2 (839433) 1 Lifting device Obsolete part
3 897658 1 Housing
4 839403 1 Upper section
5 875351 1 Vise rod
6 875352 1 Worm gear kit
7 897664 1 Nut
8 814219 1 Pressure plate
9 814218 1 Tab washer
10 925060 1 O-ring
11 955977 1 O-ring
12 19280 2 Ball bearing
13 181424 1 Ball bearing
14 914515 1 Snap ring
15 (897667) 1 Bushing Obsolete part
16 897762 1 Guide ring
17 914446 1 Snap ring
18 909838 1 Flat key
19 897666 1 Spring
20 850046 1 Electrical motor 12V later prod
21 (814456) 4 Nut Obsolete part
22 (944596) 1 Pin Obsolete part
23 839275 1 Brush set
(839586) 1 Spare parts kit Obsolete part
24 (150205) 2 Hexagon nut Obsolete part
25 (814456) 2 Nut Obsolete part
26 814304 1 Gasket
27 832153 1 Support ring
28 955995 1 O-ring
29 959327 2 Hex. socket screw
30 (951672) 2 Lock nut Obsolete part
31 839330 1 Cardboard tube
32 946438 1 O-ring
33 955980 2 O-ring
34 (839331) 1 Relay housing Obsolete part
35 1501832 1 Relay 12V (839367)
36 (1504952) 1 Relay Obsolete part, 12V (831725)
37 850710 1 Toggle switch
38 955119 3 Cross recessed screw
39 (850718) 1 Cable trunk Obsolete part
40 (850715) 1 Cable trunk Obsolete part
40A 897815 1 Temperature sensor
41 850717 1 Cable trunk
42 850714 2 Cable fixing clamp
43 956568 2 Hex. socket screw See group 4A
44 (850375) 1 Instrument panel, instrument panel Obsolete part, 12V later prod
45 839177 X Extension cable'verl Replaced by 839178., L=12500mm
(839178) X Extension cable'verl Obsolete part, L=2500mm
839179 X Cable Replaced by 839180., L=5000mm
839180 X Extension cable'verl L=7000mm

7742100- 90- 13932B 4981 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Mechanical Lift Device: 839313
90

1
28

38 29 4

42

31
19
32

37 36 12
35
33

34
5

18 2
41 40
39
30 40A

45
6

24 25 12

17
22
44 20
15
13
14 43 3
16
2
26
23 21

11 7
10 9
8
27

Upd:2014-08-13 4981 7742100 -90 -13932C

MD21B, AQD21B
 HeavyManuals.com
Mechanical Lift Device: 839313
90

REF PART NO. QTY DESCRIPTION NOTES

1 1 Replaced by 850046, 850041., 24V early type
2 (839433) 1 Lifting device Obsolete part
3 897658 1 Housing
4 839403 1 Upper section
5 875351 1 Vise rod
6 875352 1 Worm gear kit
7 897664 1 Nut
8 814219 1 Pressure plate
9 814218 1 Tab washer
10 925060 1 O-ring
11 955977 1 O-ring
12 19280 2 Ball bearing
13 181424 1 Ball bearing
14 914515 1 Snap ring
15 (897667) 1 Bushing Obsolete part
16 897762 1 Guide ring
17 914446 1 Snap ring
18 909838 1 Flat key
19 897666 1 Spring
20 839431 1 Engine Replaced by 850382., 24V early type
21 (814456) 4 Nut Obsolete part
22 (944596) 1 Pin Obsolete part
23 839275 1 Brush set
(839586) 1 Spare parts kit Obsolete part
24 (150205) 2 Hexagon nut Obsolete part
25 (814456) 2 Nut Obsolete part
26 814304 1 Gasket
27 832153 1 Support ring
28 955995 1 O-ring
29 959327 2 Hex. socket screw
30 (951672) 2 Lock nut Obsolete part
31 839330 1 Cardboard tube
32 946438 1 O-ring
33 955980 2 O-ring
34 (839331) 1 Relay housing Obsolete part
35 (1501833) 1 Relay Obsolete part, 24V (839434)
36 1504951 1 Relay 24V
37 (897848) 1 Switch Obsolete part
38 (942704) 3 Cross recessed screw Obsolete part
39 (839368) 1 Cable trunk Obsolete part, Early type
(850039) 1 Cable trunk Obsolete part, Late type
40 (850666) 1 Cable trunk Obsolete part
(897896) 1 Switch Obsolete part
41 (839370) 1 Cable trunk Obsolete part
43 956568 2 Hex. socket screw See group 4A
44 (839446) 1 Instrument panel, instrument panel Obsolete part, 24V earlier prod
(850376) 1 Instrument panel, instrument panel Obsolete part, 24V later prod
45 839177 X Extension cable'verl Replaced by 839178., L=12500mm
(839178) X Extension cable'verl Obsolete part, L=2500mm
839179 X Cable Replaced by 839180., L=5000mm
839180 X Extension cable'verl L=7000mm

7742100- 90- 13932C 4981 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Mechanical Lift Device: 850382
90

1
28

38 29 4

42

31
19
32

37 36 12
35
33

34
5

18 2
41 40
39
30 40A

45
6

24 25 12

17
22
44 20
15
13
14 43 3
16
2
26
23 21

11 7
10 9
8
27

Upd:2014-08-13 4981 7742100 -90 -13932D

MD21B, AQD21B
 HeavyManuals.com
Mechanical Lift Device: 850382
90

REF PART NO. QTY DESCRIPTION NOTES

1 850382 1 Electromechanical li 24V later prod
2 (839433) 1 Lifting device Obsolete part
3 897658 1 Housing
4 839403 1 Upper section
5 875351 1 Vise rod
6 875352 1 Worm gear kit
7 897664 1 Nut
8 814219 1 Pressure plate
9 814218 1 Tab washer
10 925060 1 O-ring
11 955977 1 O-ring
12 19280 2 Ball bearing
13 181424 1 Ball bearing
14 914515 1 Snap ring
15 (897667) 1 Bushing Obsolete part
16 897762 1 Guide ring
17 914446 1 Snap ring
18 909838 1 Flat key
19 897666 1 Spring
20 850047 1 Electrical motor 24V later prod
21 (814456) 4 Nut Obsolete part
22 (944596) 1 Pin Obsolete part
23 839275 1 Brush set
(839586) 1 Spare parts kit Obsolete part
24 (150205) 2 Hexagon nut Obsolete part
25 (814456) 2 Nut Obsolete part
26 814304 1 Gasket
27 832153 1 Support ring
28 955995 1 O-ring
29 959327 2 Hex. socket screw
30 (951672) 2 Lock nut Obsolete part
31 839330 1 Cardboard tube
32 946438 1 O-ring
33 955980 2 O-ring
34 (839331) 1 Relay housing Obsolete part
35 (1501833) 1 Relay Obsolete part, 24V (839434)
36 1504951 1 Relay 24V
37 (897848) 1 Switch Obsolete part
38 (942704) 3 Cross recessed screw Obsolete part
39 (850039) 1 Cable trunk Obsolete part, Late type
40 (850666) 1 Cable trunk Obsolete part
(897896) 1 Switch Obsolete part
41 (839370) 1 Cable trunk Obsolete part
43 956568 2 Hex. socket screw See group 4A
44 (850376) 1 Instrument panel, instrument panel Obsolete part, 24V later prod
45 839177 X Extension cable'verl Replaced by 839178., L=12500mm
(839178) X Extension cable'verl Obsolete part, L=2500mm
839179 X Cable Replaced by 839180., L=5000mm
839180 X Extension cable'verl L=7000mm

7742100- 90- 13932D 4981 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Mechanical Lift Device AQ Drive Unit 280, MO-XXXX/180264:
90 850381

1
28

38 29 4

42

31
19
32

37 36 12
35
33

34
5

18 2
41 40
39
30 40A

45
6

24 25 12

17
22
44 20
15
13
14 43 3
16
2
26
23 21

11 7
10 9
8
27

Upd:2014-08-13 4981 7742100 -90 -13933

MD21B, AQD21B
 HeavyManuals.com
Mechanical Lift Device AQ Drive Unit 280, MO-XXXX/180264: 850381
90

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 850381 1 Electromechanical li Replaced by 850726., 12V early type
(850087) (850381)
2 (839433) 1 Lifting device Obsolete part
3 897658 1 Housing
4 839403 1 Upper section
5 875351 1 Vise rod
6 875352 1 Worm gear kit
7 897664 1 Nut
8 814219 1 Pressure plate
9 814218 1 Tab washer
10 925060 1 O-ring
11 955977 1 O-ring
12 19280 2 Ball bearing
13 181424 1 Ball bearing
14 914515 1 Snap ring
15 (897667) 1 Bushing Obsolete part
16 897762 1 Guide ring
17 914446 1 Snap ring
18 909838 1 Flat key
19 897666 1 Spring
20 839430 1 Electrical motor Replaced by 850046, 850041., 12V early
type
850046 1 Electrical motor 12V later prod
21 (814456) 4 Nut Obsolete part
22 (944596) 1 Pin Obsolete part
23 839275 1 Brush set
(839586) 1 Spare parts kit Obsolete part
24 (150205) 2 Hexagon nut Obsolete part
25 (814456) 2 Nut Obsolete part
26 814304 1 Gasket
27 832153 1 Support ring
28 955995 1 O-ring
29 959327 2 Hex. socket screw
30 (951672) 2 Lock nut Obsolete part
31 839330 1 Cardboard tube
32 946438 1 O-ring
33 955980 2 O-ring
34 (839331) 1 Relay housing Obsolete part
35 1501832 1 Relay 12V (839367)
36 (1504952) 1 Relay Obsolete part, 12V (831725)
37 (897848) 1 Switch Obsolete part
38 (942704) 3 Cross recessed screw Obsolete part
39 (839368) 1 Cable trunk Obsolete part, Early type
(850039) 1 Cable trunk Obsolete part, Late type
40 (850665) 1 Cable trunk Obsolete part
40A 897815 1 Temperature sensor
41 (839370) 1 Cable trunk Obsolete part
43 956568 2 Hex. socket screw See group 4A
44 (839445) 1 Instrument panel, instrument panel Obsolete part, 12V earlier prod
13936
13936
(850375) 1 Instrument panel, instrument panel Obsolete part, 12V later prod
13937
13937
45 839177 X Extension cable'verl Replaced by 839178., L=12500mm
(839178) X Extension cable'verl Obsolete part, L=2500mm
839179 X Cable Replaced by 839180., L=5000mm
839180 X Extension cable'verl L=7000mm

7742100- 90- 13933 4981 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Mechanical Lift Device AQ Drive Unit 280, MO-XXXX/180264:
90 850726

1
28

38 29 4

42

31
19
32

37 36 12
35
33

34
5

18 2
41 40
39
30 40A

45
6

24 25 12

17
22
44 20
15
13
14 43 3
16
2
26
23 21

11 7
10 9
8
27

Upd:2014-08-13 4981 7742100 -90 -13933B

MD21B, AQD21B
 HeavyManuals.com
Mechanical Lift Device AQ Drive Unit 280, MO-XXXX/180264: 850726
90

REF PART NO. QTY DESCRIPTION NOTES

1 1 12V later prod
2 (839433) 1 Lifting device Obsolete part
3 897658 1 Housing
4 839403 1 Upper section
5 875351 1 Vise rod
6 875352 1 Worm gear kit
7 897664 1 Nut
8 814219 1 Pressure plate
9 814218 1 Tab washer
10 925060 1 O-ring
11 955977 1 O-ring
12 19280 2 Ball bearing
13 181424 1 Ball bearing
14 914515 1 Snap ring
15 (897667) 1 Bushing Obsolete part
16 897762 1 Guide ring
17 914446 1 Snap ring
18 909838 1 Flat key
19 897666 1 Spring
20 850046 1 Electrical motor 12V later prod
21 (814456) 4 Nut Obsolete part
22 (944596) 1 Pin Obsolete part
23 839275 1 Brush set
(839586) 1 Spare parts kit Obsolete part
24 (150205) 2 Hexagon nut Obsolete part
25 (814456) 2 Nut Obsolete part
26 814304 1 Gasket
27 832153 1 Support ring
28 955995 1 O-ring
29 959327 2 Hex. socket screw
30 (951672) 2 Lock nut Obsolete part
31 839330 1 Cardboard tube
32 946438 1 O-ring
33 955980 2 O-ring
34 (839331) 1 Relay housing Obsolete part
35 1501832 1 Relay 12V (839367)
36 (1504952) 1 Relay Obsolete part, 12V (831725)
37 850710 1 Toggle switch
38 955119 3 Cross recessed screw
39 (850718) 1 Cable trunk Obsolete part
40 (850715) 1 Cable trunk Obsolete part
40A 897815 1 Temperature sensor
41 850717 1 Cable trunk
42 850714 2 Cable fixing clamp
43 956568 2 Hex. socket screw See group 4A
44 (850375) 1 Instrument panel, instrument panel Obsolete part, 12V later prod
45 839177 X Extension cable'verl Replaced by 839178., L=12500mm
(839178) X Extension cable'verl Obsolete part, L=2500mm
839179 X Cable Replaced by 839180., L=5000mm
839180 X Extension cable'verl L=7000mm

7742100- 90- 13933B 4981 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Mechanical Lift Device AQ Drive Unit 280, MO-XXXX/180264:
90 839313

1
28

38 29 4

42

31
19
32

37 36 12
35
33

34
5

18 2
41 40
39
30 40A

45
6

24 25 12

17
22
44 20
15
13
14 43 3
16
2
26
23 21

11 7
10 9
8
27

Upd:2014-08-13 4981 7742100 -90 -13933C

MD21B, AQD21B
 HeavyManuals.com
Mechanical Lift Device AQ Drive Unit 280, MO-XXXX/180264: 839313
90

REF PART NO. QTY DESCRIPTION NOTES

1 1 Replaced by 850382., 24V early type
2 (839433) 1 Lifting device Obsolete part
3 897658 1 Housing
4 839403 1 Upper section
5 875351 1 Vise rod
6 875352 1 Worm gear kit
7 897664 1 Nut
8 814219 1 Pressure plate
9 814218 1 Tab washer
10 925060 1 O-ring
11 955977 1 O-ring
12 19280 2 Ball bearing
13 181424 1 Ball bearing
14 914515 1 Snap ring
15 (897667) 1 Bushing Obsolete part
16 897762 1 Guide ring
17 914446 1 Snap ring
18 909838 1 Flat key
19 897666 1 Spring
20 839431 1 Engine Replaced by 850047, 850041., 24V early type
21 (814456) 4 Nut Obsolete part
22 (944596) 1 Pin Obsolete part
23 839275 1 Brush set
(839586) 1 Spare parts kit Obsolete part
24 (150205) 2 Hexagon nut Obsolete part
25 (814456) 2 Nut Obsolete part
26 814304 1 Gasket
27 832153 1 Support ring
28 955995 1 O-ring
29 959327 2 Hex. socket screw
30 (951672) 2 Lock nut Obsolete part
31 839330 1 Cardboard tube
32 946438 1 O-ring
33 955980 2 O-ring
34 (839331) 1 Relay housing Obsolete part
35 (1501833) 1 Relay Obsolete part, 24V (839434)
36 1504951 1 Relay 24V
37 (897848) 1 Switch Obsolete part
38 (942704) 3 Cross recessed screw Obsolete part
39 (839368) 1 Cable trunk Obsolete part, Early type
(850039) 1 Cable trunk Obsolete part, Late type
40 (850666) 1 Cable trunk Obsolete part
(897896) 1 Switch Obsolete part
41 (839370) 1 Cable trunk Obsolete part
43 956568 2 Hex. socket screw See group 4A
44 (839446) 1 Instrument panel, instrument panel Obsolete part, 24V earlier prod
(850376) 1 Instrument panel, instrument panel Obsolete part, 24V later prod
45 839177 X Extension cable'verl Replaced by 839178., L=12500mm
(839178) X Extension cable'verl Obsolete part, L=2500mm
839179 X Cable Replaced by 839180., L=5000mm
839180 X Extension cable'verl L=7000mm

7742100- 90- 13933C 4981 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Mechanical Lift Device AQ Drive Unit 280, MO-XXXX/180264:
90 850382

1
28

38 29 4

42

31
19
32

37 36 12
35
33

34
5

18 2
41 40
39
30 40A

45
6

24 25 12

17
22
44 20
15
13
14 43 3
16
2
26
23 21

11 7
10 9
8
27

Upd:2014-08-13 4981 7742100 -90 -13933D

MD21B, AQD21B
 HeavyManuals.com
Mechanical Lift Device AQ Drive Unit 280, MO-XXXX/180264: 850382
90

REF PART NO. QTY DESCRIPTION NOTES

1 850382 1 Electromechanical li 24V later prod
2 (839433) 1 Lifting device Obsolete part
3 897658 1 Housing
4 839403 1 Upper section
5 875351 1 Vise rod
6 875352 1 Worm gear kit
7 897664 1 Nut
8 814219 1 Pressure plate
9 814218 1 Tab washer
10 925060 1 O-ring
11 955977 1 O-ring
12 19280 2 Ball bearing
13 181424 1 Ball bearing
14 914515 1 Snap ring
15 (897667) 1 Bushing Obsolete part
16 897762 1 Guide ring
17 914446 1 Snap ring
18 909838 1 Flat key
19 897666 1 Spring
20 850047 1 Electrical motor 24V later prod
21 (814456) 4 Nut Obsolete part
22 (944596) 1 Pin Obsolete part
23 839275 1 Brush set
(839586) 1 Spare parts kit Obsolete part
24 (150205) 2 Hexagon nut Obsolete part
25 (814456) 2 Nut Obsolete part
26 814304 1 Gasket
27 832153 1 Support ring
28 955995 1 O-ring
29 959327 2 Hex. socket screw
30 (951672) 2 Lock nut Obsolete part
31 839330 1 Cardboard tube
32 946438 1 O-ring
33 955980 2 O-ring
34 (839331) 1 Relay housing Obsolete part
35 (1501833) 1 Relay Obsolete part, 24V (839434)
36 1504951 1 Relay 24V
37 (897848) 1 Switch Obsolete part
38 (942704) 3 Cross recessed screw Obsolete part
39 (850039) 1 Cable trunk Obsolete part, Late type
40 (850666) 1 Cable trunk Obsolete part
(897896) 1 Switch Obsolete part
41 (839370) 1 Cable trunk Obsolete part
43 956568 2 Hex. socket screw See group 4A
44 (850376) 1 Instrument panel, instrument panel Obsolete part, 24V later prod
45 839177 X Extension cable'verl Replaced by 839178., L=12500mm
(839178) X Extension cable'verl Obsolete part, L=2500mm
839179 X Cable Replaced by 839180., L=5000mm
839180 X Extension cable'verl L=7000mm

7742100- 90- 13933D 4981 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Mechanical Lift Device AQ Drive Unit 280, MOXXXX/180265-
90

22

23 4
31
35

25
26 19

29 30 12
27

28
5

42
33
18
32 2
24
40
34 24A 41

44 6
39
12
20A 38
17

15
14 13 3
16 45
37 2
20
43
36
11 7
10 9
8
21

Upd:2014-08-13 5372 7742100 -90 -13935

MD21B, AQD21B
 HeavyManuals.com
Mechanical Lift Device AQ Drive Unit 280, MOXXXX/180265-
90

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 850957 1 Electromechanical li 12V
2 (839433) 1 Lifting device Obsolete part
3 897658 1 Housing
4 839403 1 Upper section
5 875351 1 Vise rod
6 875352 1 Worm gear kit
7 897664 1 Nut
8 814219 1 Pressure plate
9 814218 1 Tab washer
10 925060 1 O-ring
11 955977 1 O-ring
12 19280 2 Ball bearing
13 181424 1 Ball bearing
14 914515 1 Snap ring
15 (897667) 1 Bushing Obsolete part
16 897762 1 Guide ring
17 914446 1 Snap ring
18 909838 1 Flat key
19 897666 1 Spring
20 814304 1 Gasket
20A 851480 1 Gasket Late type
21 832153 1 Support ring
22 955995 1 O-ring
23 959327 2 Hex. socket screw
24 940092 2 Hexagon nut
24A 941905 2 Spring washer
25 839330 1 Cardboard tube
26 946438 1 O-ring
27 852088 2 Sealing ring
28 (839331) 1 Relay housing Obsolete part
29 (1504952) 2 Relay Obsolete part, (831725)
30 850710 1 Toggle switch
31 955119 3 Cross recessed screw
32 850896 1 Cable trunk
33 (850955) 1 Cable trunk Obsolete part
34 850717 1 Cable trunk
35 850714 2 Cable fixing clamp
36 850834 1 Electrical motor
37 (944596) 1 Pin Obsolete part
851126 1 Repair kit
38 956061 2 Cross recessed screw
39 941904 2 Spring washer
40 (850984) 1 Hanging fuse Obsolete part, Early type, USA
850970 1 Hanging fuse Late type, USA
41 851120 1 Fuse Early type, 30A
850965 1 Fuse Late type, 20A
42 (851002) 1 Cable Obsolete part, Excl USA
43 (850375) 1 Instrument panel Obsolete part
13937
44 839177 X Extension cable'verl TypeNo A3,colour marked=red., L=12500mm
(839178) X Extension cable'verl Obsolete part, L=2500mm
839179 X Cable TypeNo A4,colour marked=dark green., L=5000mm
839180 X Extension cable'verl L=7000mm
45 956568 2 Hex. socket screw See group 4A

7742100- 90- 13935 5372 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Instrument Panel: 839132
90

2
3

9
4
11

10

5 6
8 7

Upd:2014-08-13 2709 7742100 -90 -13936

MD21B, AQD21B
 HeavyManuals.com
Instrument Panel: 839132
90

REF PART NO. QTY DESCRIPTION NOTES

1 (839132) 1 Instrument panel 12V repl by 839445, Obsolete part
2 (839127) 1 Instrument plate Obsolete part
3 (839128) 1 Plastic plug Obsolete part
4 814322 1 Toggle switch
5 827766 1 Lens
6 819350 1 Sleeve
7 808175 1 Lamp socket
8 19923 1 Bulb
9 944540 4 Screw
10 839426 1 Cable trunk
X cables and cable terminals See group 3

11 948210 1 Cable tie (827353)

7742100- 90- 13936 2709 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Instrument Panel: 839133
90

2
3

9
4
11

10

5 6
8 7

Upd:2014-08-13 2709 7742100 -90 -13936B

MD21B, AQD21B
 HeavyManuals.com
Instrument Panel: 839133
90

REF PART NO. QTY DESCRIPTION NOTES

1 1 24V repl by 839446
2 (839127) 1 Instrument plate Obsolete part
3 (839128) 1 Plastic plug Obsolete part
4 814322 1 Toggle switch
5 827766 1 Lens
6 819350 1 Sleeve
7 808175 1 Lamp socket
8 182059 1 Bulb
9 944540 4 Screw
10 839426 1 Cable trunk
X cables and cable terminals See group 3

11 948210 1 Cable tie (827353)

7742100- 90- 13936B 2709 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Instrument Panel: 839445
90

2
3

9
4
11

10

5 6
8 7

Upd:2014-08-13 2709 7742100 -90 -13936C

MD21B, AQD21B
 HeavyManuals.com
Instrument Panel: 839445
90

REF PART NO. QTY DESCRIPTION NOTES

1 (839445) 1 Instrument panel 12V, Obsolete part
2 (839127) 1 Instrument plate Obsolete part
3 (839128) 1 Plastic plug Obsolete part
4 814322 1 Toggle switch
5 827766 1 Lens
6 819350 1 Sleeve
7 808175 1 Lamp socket
8 19923 1 Bulb
9 944540 4 Screw
10 839426 1 Cable trunk
X cables and cable terminals See group 3

11 948210 1 Cable tie (827353)

7742100- 90- 13936C 2709 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Instrument Panel: 839446
90

2
3

9
4
11

10

5 6
8 7

Upd:2014-08-13 2709 7742100 -90 -13936D

MD21B, AQD21B
 HeavyManuals.com
Instrument Panel: 839446
90

REF PART NO. QTY DESCRIPTION NOTES

1 (839446) 1 Instrument panel 24V, Obsolete part
2 (839127) 1 Instrument plate Obsolete part
3 (839128) 1 Plastic plug Obsolete part
4 814322 1 Toggle switch
5 827766 1 Lens
6 819350 1 Sleeve
7 808175 1 Lamp socket
8 182059 1 Bulb
9 944540 4 Screw
10 839426 1 Cable trunk
X cables and cable terminals See group 3

11 948210 1 Cable tie (827353)

7742100- 90- 13936D 2709 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Instrument Panel: 850375
90

2
11

3 12
4

10

Upd:2014-08-13 4656 7742100 -90 -13937

MD21B, AQD21B
 HeavyManuals.com
Instrument Panel: 850375
90

REF PART NO. QTY DESCRIPTION NOTES

1 (850375) 1 Instrument panel 12V, Obsolete part
2 1 panel
3 850372 1 Attaching brace A=60mm
4 944201 2 Cross recessed screw
5 814322 1 Toggle switch
6 827766 1 Lens
7 819350 1 Sleeve
8 808175 1 Lamp socket
9 19923 1 Bulb 12V
10 839426 1 Cable trunk
cables and cable terminals See group 3

11 (843603) 1 Intermediate ring Alt, Obsolete part

12 (843602) 1 Attaching brace Alt A=65mm, Obsolete part

7742100- 90- 13937 4656 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Instrument Panel: 850376
90

2
11

3 12
4

10

Upd:2014-08-13 4656 7742100 -90 -13937B

MD21B, AQD21B
 HeavyManuals.com
Instrument Panel: 850376
90

REF PART NO. QTY DESCRIPTION NOTES

1 (850376) 1 Instrument panel 24V, Obsolete part
2 1 panel
3 850372 1 Attaching brace A=60mm
4 944201 2 Cross recessed screw
5 814322 1 Toggle switch
6 827766 1 Lens
7 819350 1 Sleeve
8 808175 1 Lamp socket
9 182059 1 Bulb 24V
10 839426 1 Cable trunk

11 (843603) 1 Intermediate ring Alt, Obsolete part

12 (843602) 1 Attaching brace Alt A=65mm, Obsolete part

7742100- 90- 13937B 4656 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Extension Set AQ Drive Unit 270D, 280: 839548
90

12
9 8 15

20 19

3
21

18

22
11

9 15
8

19
20
2
21

18

5
14

22
10

7 13

20
19
1
21

22
16

17

Upd:2014-08-13 6698 7742100 -90 -13938

MD21B, AQD21B
 HeavyManuals.com
Extension Set AQ Drive Unit 270D, 280: 839548
90

REF PART NO. QTY DESCRIPTION NOTES

1 839548 1 Extension kit L=1'' 280
4 1 adapter
7 814135 1 Splined sleeve
10 914508 1 Snap ring
13 941873 1 Hex. socket screw
14 959448 2 Hex. socket screw
16 943762 4 Stud 280, 280T
17 832939 4 Nut 280, 280T
19 925256 1 O-ring
20 125017 1 O-ring
21 941820 1 O-ring
22 897823 1 Oil pipe

7742100- 90- 13938 6698 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Extension Set AQ Drive Unit 270D, 280: 814318
90

12
9 8 15

20 19

3
21

18

22
11

9 15
8

19
20
2
21

18

5
14

22
10

7 13

20
19
1
21

22
16

17

Upd:2014-08-13 6698 7742100 -90 -13938B

MD21B, AQD21B
 HeavyManuals.com
Extension Set AQ Drive Unit 270D, 280: 814318
90

REF PART NO. QTY DESCRIPTION NOTES

2 814318 1 Extension kit L=4''
5 1 adapter
8 875183 1 Splined sleeve
9 914508 1 Snap ring
11 814321 1 Shaft
15 941809 3 Hex. socket screw
18 941810 4 Hex. socket screw
19 925256 1 O-ring
20 125017 1 O-ring
21 941820 1 O-ring
22 897823 1 Oil pipe

7742100- 90- 13938B 6698 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Extension Set AQ Drive Unit 270D, 280: 897830
90

12
9 8 15

20 19

3
21

18

22
11

9 15
8

19
20
2
21

18

5
14

22
10

7 13

20
19
1
21

22
16

17

Upd:2014-08-13 6698 7742100 -90 -13938C

MD21B, AQD21B
 HeavyManuals.com
Extension Set AQ Drive Unit 270D, 280: 897830
90

REF PART NO. QTY DESCRIPTION NOTES

3 (897830) 1 Extension kit L=8'', Obsolete part
6 1 adapter
8 875183 1 Splined sleeve
9 914508 1 Snap ring
12 (897813) 1 Extension shaft Obsolete part
15 941809 3 Hex. socket screw
18 941810 4 Hex. socket screw
19 925256 1 O-ring
20 125017 1 O-ring
21 941820 1 O-ring
22 897823 1 Oil pipe

7742100- 90- 13938C 6698 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Engine Room Fan Bilge Pump
90

Upd:2014-08-13 6088 7742100 -90 -13939

MD21B, AQD21B
 HeavyManuals.com
Engine Room Fan Bilge Pump
90

REF PART NO. QTY DESCRIPTION NOTES

1 828212 X Bilge pump 12V
2 1142000 X Fan 12V
3 X
4 828492 X Ventilation hose L=5000mm

7742100- 90- 13939 6088 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Tool Kit
90
MD21B, AQD21B

9
8

14 12 10

15 11

3
4

6
17

16

19 18 5

2 13

20

Upd:2014-08-13 5669 7742100 -90 -13940

MD21B, AQD21B
 HeavyManuals.com
Tool Kit
90
MD21B, AQD21B

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (844636) 1 Tool kit Obsolete part
2 844642 1 Tool bag (809863)
3 (841044) 1 Screwdriver Obsolete part
4 (963929) 1 Combination screwdri Obsolete part
5 (843929) 1 Open-end wrench Obsolete part, 8-10mm
(210056) 1 Open-end wrench Obsolete part, 11-12mm
(841252) 1 Open-end wrench Obsolete part, 13-16mm
(962053) 1 Open-end wrench Obsolete part, 13-17mm
(962060) 1 Open-end wrench Obsolete part, 14-17mm
(962054) 1 Open-end wrench Obsolete part, 19-22mm
6 884570 1 Spark plug spanner
7 (1210305) 1 Lever Obsolete part
8 841045 1 Tool kit AQ drive unit
9 (834980) 1 Screwdriver Obsolete part
10 914675 1 Allen wrench 114''
914677 1 Allen wrench 3/8''
11 (851462) 2 Puller Obsolete part, AQ drive unit
12 875117 1 Oil bilge pump
13 844642 1 Tool bag (809863)
14 1 oil bilge pump
15 806282 1 Plastic hose L=1000mm
16 (841046) 1 Rubber hose Obsolete part
17 941405 X Hose L=100mm
18 835964 1 Oil scavenging pipe L=711mm
19 (841527) Oil scavenging pipe Obsolete part, L=1000mm
20 chemicals 13943

7742100- 90- 13940 5669 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Tool Kit: MD21B/110S
90

11 7
9
6

12

4
8

14

3
13

5
15 1

2 10

16

Upd:2014-08-13 5316 7742100 -90 -13941

MD21B, AQD21B
 HeavyManuals.com
Tool Kit: MD21B/110S
90

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (844636) 1 Tool kit Obsolete part
2 844642 1 Tool bag
3 (841044) 1 Screwdriver Obsolete part
4 (963929) 1 Combination screwdri Obsolete part
5 (843929) 1 Open-end wrench 8 - 10mm, Obsolete part
(210056) 1 Open-end wrench Obsolete part, 11 - 12mm
(841252) 1 Open-end wrench Obsolete part, 13 - 16mm
(962053) 1 Open-end wrench Obsolete part, 13 - 17mm
(962060) 1 Open-end wrench Obsolete part, 14 - 17mm
(962054) 1 Open-end wrench Obsolete part, 19 - 22mm
6 841045 1 Tool kit
7 (834980) 1 Screwdriver Obsolete part
8 914675 1 Allen wrench 1/4''
914677 1 Allen wrench 3/8''
9 875117 1 Oil bilge pump
10 (809863) 1 Bearing Obsolete part
11 1 oil bilge pump
12 806282 1 Plastic hose L=1000mm
13 (841046) 1 Rubber hose Obsolete part
14 941405 1 Hose L=100mm
15 835964 1 Oil scavenging pipe L=711mm
16 chemicals 13943

7742100- 90- 13941 5316 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Chemicals
90

1 2

Upd:2014-08-13 6092 7742100 -90 -13943

MD21B, AQD21B
 HeavyManuals.com
Chemicals
90

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

1 (3551916) X Paint, primer for aluminium GRAY-BLUE Obsolete part
310GR spray
(832619) X Primer, white 0.9L, Obsolete part
(804304) X Paint, white 0,125L, Obsolete part
(832592) X Paint, white 0,7L, Obsolete part
(3576547) X Paint, white 310GR spray, Obsolete part
(855205) X Paint, gray 0,125L, Obsolete part
(855204) X Paint, gray 0,5L, Obsolete part
(3551913) X Paint, gray 310GR spray, Obsolete part
(3551921) X Paint, gray, metallic Obsolete part
310GR spray
(832576) X Paint, gray-blue Obsolete part
0,125L
832594 X Paint, gray-blue
0,7L
(807663) X Paint, blue 0,5L, Obsolete part
(3551914) X Paint, dark blue Obsolete part
310GR spray
(3551917) X Paint, orange Obsolete part
310GR spray
827501 X Touch-up paint, red 0,25L spray
837176 X Engine paint, green 0.25L
837124 X Paint, green 1,0L
(3574764) X Paint, black 310GR spray, Obsolete part
(852903) X Paint (839107), Obsolete part
white 0,5L
(839106) X Paint, gray-blue Obsolete part
0,5L
827502 X Clear enamel 0.25L
(832591) X Dilution 1,0L, Obsolete part
(1128827) X Degreaser 1L, spray, Obsolete part
2 1129616 X Glycol 1kg.
1129617 X Glycol 5kg.
282012 X Glycol, barrel 235kg.
1141501 X Oil, 10W 40 1,0L
1141507 X Oil, 10W 40 5,0L
1141514 X Oil, 10W 40 25L
1141504 X Oil, 10W 40 200L, barrel
1141502 X Oil, 20W 30 1,0L
1141506 X Oil, 20W 30 5,0L
1141515 X Oil, 20W 30 25L
1141505 X Oil, 20W 30 200L, barrel
(3551924) X Oil 1,0L, Obsolete part
281404 X Universal oil 0,17L spray
1161036 X All-round spray 0,15L spray
1141510 X Conservation oil, cooling jacket
1,0L
(1161038) X Anti-rust agent 0.4L spray, Obsolete part
(3577494) X Oil 0.25L, Obsolete part
(3551925) X Oil EP 90, Obsolete part
3 828250 X Lubricating grease, solid salt water
resistant
Bulletin P-18-4-6 P-18-4-6-EN Water resistant grease for grease
gun
3 40GR
4 1141509 X Grease, for propeller shaft
500GR
(3551927) X Grease, for controls 250GR, Obsolete part
(3574692) X Grease, rust protect. 115GR, Obsolete part
5 (814355) X Adhesive, araldit std Obsolete part
(850747) X Adhesive Tube std, Obsolete part

7742100- 90- 13943 6092 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Chemicals
90

REF PART NO. QTY DESCRIPTION SEE SEC. NOTES

(851310) X Adhesive 0,94L, Obsolete part
841261 X Sealant
6 (1141512) X Rubbing compound 0,3L, Obsolete part
(1141511) X Wax 250GR, Obsolete part
(1141513) X Polish 0,5L, Obsolete part

7742100- 90- 13943 6092 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Repair Kits: MD21B/110S
99
MD21B, AQD21B

REF PART NO. QTY DESCRIPTION NOTES

1 829530 1 Cylinder liner kit
(829254) 4 Cylinder liner kit MO-3119179/XXXX, Obsolete part
(829532) 4 Piston MO3119180/XXXX-, Obsolete part
4 cylinder liner
(818001) 4 Sealing ring Obsolete part
4 piston
875377 4 Piston ring kit
(826841) 4 Piston pin Std D, Obsolete part
gudgeon pin Over size, SEE group 2A
914515 8 Snap ring

875302 1 Bearing shell kit Std D

(875303) 1 Bearing shell kit Under size 0,30mm, Obsolete part
875304 1 Bearing shell kit Under size 0,50mm
(875305) 1 Bearing shell kit Under size 0,80mm, Obsolete part

(875306) 1 Bearing shell kit Std D, Obsolete part

(875307) 1 Bearing shell kit Under size 0,30mm, Obsolete part
(875308) 1 Bearing shell kit Under size 0,50mm, Obsolete part
(875309) 1 Bearing shell kit Under size 0,80mm, Obsolete part

(818262) 2 Washer Std D, Obsolete part

(818015) 2 Washer Over size 0,20, Obsolete part

875388 1 De-carbonizing kit, gasket kit decarbonizing MO-3119179/XXXX

875567 1 De-carbonizing kit, gasket kit decarbonizing MO3119180/XXXX-

416033 1 Sealing ring (418361)

815844 2 Gasket
817918 1 Gasket
818457 2 Gasket
819727 3 Gasket
819756 1 Gasket MO-311829/XXXX
(829285) 1 Gasket MO311830/XXXX-, Obsolete part
820271 3 Gasket
829214 1 Gasket MO-3119179/XXXX
829531 1 Gasket MO3119180/XXXX-
11992 4 Gasket
18811 8 Gasket
190990 1 Gasket
818069 1 Gasket
817899 4 Gasket
826601 1 Gasket
829063 4 Gasket
411168 2 Gasket

(875387) 1 Overhaul gasket kit, gasket kit reconditioning Obsolete part

15301 2 Gasket
957178 1 Gasket
957176 12 Gasket
957181 1 Gasket
48588 4 Gasket
330699 1 Gasket
422130 1 Gasket
817730 1 Gasket
945653 2 Gasket
925092 2 O-ring
955983 1 O-ring
955977 2 O-ring

7742100- 99- 13954 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Repair Kits: MD21B/110S
99
MD21B, AQD21B

REF PART NO. QTY DESCRIPTION NOTES

817938 1 Gasket
818016 2 Gasket
818017 1 Sealing
(818034) 1 Sealing ring Obsolete part
840648 1 Gasket (818035)
925054 1 O-ring
943821 1 Sealing ring
818178 1 Sealing ring
818234 1 Gasket
818240 1 Gasket
818242 1 Gasket
818273 1 Gasket
818355 1 Gasket
818447 2 Gasket
(818451) 1 O-ring Obsolete part
819119 1 Gasket
819689 1 Gasket
826514 1 Gasket
826765 1 Gasket
818352 2 Gasket
925069 2 O-ring
960183 1 O-ring
818061 1 Protecting ring
945615 1 O-ring
829972 1 Gasket
(829974) 1 Gasket Obsolete part
430020 4 Sealing ring
411168 1 Gasket
418412 1 Sealing ring
418411 1 Sealing ring

7742100- 99- 13954 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Repair Kits: MD21B/110S
99
MD21B, AQD21B

REF PART NO. QTY DESCRIPTION NOTES

1 (875372) 1 Repair kit, repair kit fresh water pump Obsolete part

826867 1 Pump shaft

181574 1 Ball bearing
181862 1 Ball bearing (181575)
826866 1 Washer kit
(818402) 1 Deflector ring Obsolete part
(826871) 1 Impeller Obsolete part
951100 1 Lubricator
817776 1 Key
819689 1 Gasket

(875410) 1 Repair kit, repair kit water pump, keel cooling Obsolete part

(826906) 1 Gasket Obsolete part

1 seal
1 slinger
1 lock ring
6 screw
1 set screw
6 lock washer
1 plug

826217 1 Repair kit, repair kit fuel feed pump Replaced by complete fuel feed pump
826550.

1 gasket
2 valve seat
2 valve
2 valve spring
2 retainer
1 diaphragm
1 shaft

7742100- 99- 13955 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Repair Kits AQ Drive Unit 280
99

REF PART NO. QTY DESCRIPTION NOTES

1 875192 1 Gasket kit Replaced by 876266+876268

876266 1 Gasket kit, upper gear

17253 2 Split pin
17276 1 Split pin
125017 1 O-ring
181620 2 Sealing ring
804261 1 Gasket
804344 1 Gasket
814168 1 Gasket
814356 1 Sealing
876278 2 Bushing kit
832669 1 Gasket
839253 1 Sealing ring
853223 2 Bushing
872096 2 Bushing
853868 1 Sealing ring
897682 1 Gasket
925093 1 O-ring
967344 1 O-ring
925256 2 O-ring
925259 1 O-ring
942615 1 Sealing ring
955974 1 O-ring
955989 1 O-ring
956000 1 O-ring
979254 1 O-ring

876268 1 Gasket kit, lower gear

125017 1 O-ring
191573 1 Lock washer
804261 1 Gasket
814164 1 Nut
814165 1 Washer
832191 1 Gasket
854300 1 Nut
872755 1 Sealing ring
897426 2 Sealing ring
906633 1 Round nut
907023 1 Lock washer
907025 1 Lock washer
925256 1 O-ring
925261 2 O-ring
941820 1 O-ring
955974 1 O-ring
969071 1 Round nut

7742100- 99- 13956 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Repair Kit S-Drive Unit 110S: MD21B/110S
99

REF PART NO. QTY DESCRIPTION NOTES

1 875591 1 Gasket kit, gasket and locking kit

804261 2 Gasket, plug

832952 1 Gasket, bearing
925093 1 O-ring, cover
925094 1 O-ring, bearing housing
955995 1 O-ring, gear
958856 1 Sealing ring, cover
958838 1 Sealing ring (941866)
925054 1 O-ring, oil dipstick
897426 2 Sealing ring, prop shaft
925257 2 O-ring, bearing housing
960238 1 O-ring, lower gear
925257 1 O-ring, cover
382005 1 Disc spring (850344)
925257 1 O-ring
851287 4 O-ring

7742100- 99- 13957 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Repair Kits Reverse Gear MS3
99

REF PART NO. QTY DESCRIPTION NOTES

1 875628 1 Gasket kit
832669 1 Gasket
839253 1 Sealing ring
897682 1 Gasket
125018 1 O-ring
925069 1 O-ring
925092 1 O-ring
925093 1 O-ring
925095 1 O-ring
851531 2 Gasket
925258 1 O-ring
925263 2 O-ring
958838 1 Sealing ring (941866)
942353 4 O-ring
955974 1 O-ring
955989 1 O-ring
956000 1 O-ring
957173 1 Gasket MS3, MS3B
957175 1 Gasket MS3C
958879 1 Sealing ring
925267 3 O-ring
958880 1 Sealing ring
960169 4 O-ring
957175 1 Gasket
925063 1 O-ring
925096 1 O-ring
925256 3 O-ring
925257 1 O-ring
944530 1 Sealing ring
959026 1 Sealing ring

7742100- 99- 13958 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Engine
21

DESCRIPTION SEE SEC. NOTES

Engine with Installation Components 13875
Cylinder Block: A 13873 MD21B, AQD21B
Cylinder Block: B 13873B MD21B, AQD21B
Cylinder Block: MD21B/110S 13873C MD21B, AQD21B
Crankshaft and Related Parts: MD21B/110S 13874 MD21B, AQD21B
Camshaft and Valve Mechanism: MD21B/110S 13876 MD21B, AQD21B
Cylinder Head: MD21B/110S 13869 MD21B, AQD21B
Lubricating System: MD21B/110S 13870 MD21B, AQD21B
Engine Suspension: A 13871 MD21B, AQD21B
Engine Suspension: B 13871B MD21B, AQD21B
Engine Suspension: MD21B/110S 13872

7742100 - 21- 21 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Fuel System
23

DESCRIPTION SEE SEC. NOTES

Fuel System: MD21B/110S 13888 MD21B, AQD21B
Fuel Feed Pump 13889
Fuel Injection Pump with Installation Components: MD21B/110S 13885 MD21B, AQD21B
Fuel Filter: 875542 13886
Fuel Filter: 829764 13886B
Water Separator 13887

7742100 - 23- 23 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Cooling System
26

DESCRIPTION SEE SEC. NOTES

Cooling System, Induction- and Exhaust Manifold: A 13881 MD21B, AQD21B
Cooling System, Induction- and Exhaust Manifold: B 13881B MD21B, AQD21B
Cooling System, Induction- and Exhaust Manifold: MD21B/110S 13881C MD21B, AQD21B
Oil Cooler and Sea Water Filter with Installation Components: A 13882 MD21B, AQD21B
Oil Cooler and Sea Water Filter with Installation Components: B 13882B MD21B, AQD21B
Oil Cooler and Sea Water Filter with Installation Components: MD21B/110S 13882C MD21B, AQD21B
Heat Exchanger with Thermostat and Installation Components: MD21B/110S 13883 MD21B, AQD21B
Circulation Pump and Installation Components: MD21B/110S 13884 MD21B, AQD21B
Sea Water Pump with Installation Components: MD21B/110S 13877 MD21B, AQD21B
Sea Water Pump 12779
Oil Cooler: 829630 13879
Induction- and Exhaust Manifold: A 13880 MD21B, AQD21B
Induction- and Exhaust Manifold: B 13880B MD21B, AQD21B
Induction- and Exhaust Manifold: MD21B/110S 13880C MD21B, AQD21B

7742100 - 26- 26 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Controls
27

DESCRIPTION SEE SEC. NOTES

Engine Speed Control and Stop Control: MD21B/110S 13890 MD21B, AQD21B

7742100 - 27- 27 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Electrical System
30

DESCRIPTION SEE SEC. NOTES

Electrical System and Instrument: MD21B/110S 13900 MD21B, AQD21B
Alternator and Installation Components: MD21B/110S 13891 MD21B, AQD21B
Alternator: 827303 13892
Alternator: 841380 13893
Alternator: 841765 13894
Alternator: 841770 13895
Starter: 829649 13896
Starter: 829712 13897
Instrument Panel: 829442 13898
Instrument Panel: 829443 13898B
Cables and Cable Terminals 13899

7742100 - 30- 30 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Transmissions
44

DESCRIPTION SEE SEC. NOTES

Connecting Components Reverse Gear Borg Warner 13903 MD21B
Connecting Components Reverse Gear MS3 Ratio 1, 91:1 13904 MD21B
Connecting Components Reverse Gear MS3 Ratio 2, 91:1 13905 MD21B
Connecting Components Reverse Gear MS3B 13906 MD21B
Connecting Components: MD21B/110S 13901
Connecting Components AQ Drive Unit 280 13902 AQD21B
Reverse Gear MS3 Ratio 1, 92:1: 850413 13907
Reverse Gear MS3 Ratio 2, 91:1: 851100 13908
Reverse Gear MS3B: 852102 13909
Reverse Gear MS3B: 852001 13909B
Reverse Gear MS3B: 852002 13909C
Reverse Gear MS3B: 852003 13909D
Aquamatic Drive Unit 13913
S-Drive Unit 13910
Upper Gear Unit S-Drive Unit 110S: MD21B/110S 13911
Lower Gear Unit S-Drive Unit 110S: MD21B/110S 13912
Upper Gear Unit AQ Drive Unit 280 13914
Intermediate Housing AQ Drive Unit 280 13915
Lower Gear Unit AQ Drive Unit 280 13916

7742100 - 44- 44 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Steering System
64

DESCRIPTION SEE SEC.

Steering Mechanism, Cable Type 13917
Steering Mechanism Roto Pilot 13918
Steering Mechanism, Fly Bridge Roto Pilot 13919
Steering Head 13920
Steering Cable Lock 13921
Reduction Kit AQ Drive Unit 280 13922

7742100 - 64- 64 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Miscellaneous Equipment
90

DESCRIPTION SEE SEC. NOTES

Electrical Oil Bilge Pump 13946
Cooling Water Intake: 828244 13923 MD21B
Cooling Water Intake: 841723 13923B MD21B
Separate Exhaust Outlet and Water Intake: A 13926
Separate Exhaust Outlet and Water Intake: MD21 13926B
Water-cooled Exhaust Riser 13934 MD21B
Water Cooled Exhaustline 13942 MD21B
Water Cooled Exhaust Muffler with Installation Components 13944 MD21B
Water Cooled Exhaust Muffler with Installation Components: MB21B/110S 13945
Connecting Components Fuel Filter - Fuel Tank: MD21B/110S 13947 MD21B
Tank Meter Kit for Fuel and Drinking Water: 834399 13948
Tank Meter Kit for Fuel and Drinking Water: 834400 13948B
Control, Side Mount: A 13949
Control, Side Mount: B 13949B
Control for Top Installation: A 13950
Control for Top Installation: B 13950B
Control, Side Mount 13951
Control Mechanism 13952
Control Cables 13953
Alarm Unit: 827940 13924
Alarm Unit: 827941 13924B
Extra Instrument Panel 13925
Coupling Flange 5'': 828390 13927
Coupling Flange 5'': 827957 13927B
Coupling Flange 5'': 828145 13927C
Coupling Flange 5'': 828147 13927D
Propeller Shaft Flange 5'': 828388 13928
Propeller Shaft Flange 5'': 829279 13928B
Propeller Shaft Flange 5'': 829281 13928C
Propeller Shaft Flange 5'': 819105 13928D
Propeller, Bronze Zinc Anode: A 13929
Propeller, Bronze Zinc Anode: B 13929B
Propeller, 280 Drive Unit: A 13930
Propeller, 280 Drive Unit: B 13930B
Trim Tabs: 851350 13931
Mechanical Lift Device: 850381 13932
Mechanical Lift Device: 850726 13932B
Mechanical Lift Device: 839313 13932C
Mechanical Lift Device: 850382 13932D
Mechanical Lift Device AQ Drive Unit 280, MO-XXXX/180264: 850381 13933
Mechanical Lift Device AQ Drive Unit 280, MO-XXXX/180264: 850726 13933B
Mechanical Lift Device AQ Drive Unit 280, MO-XXXX/180264: 839313 13933C
Mechanical Lift Device AQ Drive Unit 280, MO-XXXX/180264: 850382 13933D
Mechanical Lift Device AQ Drive Unit 280, MOXXXX/180265- 13935
Instrument Panel: 839132 13936
Instrument Panel: 839133 13936B
Instrument Panel: 839445 13936C
Instrument Panel: 839446 13936D
Instrument Panel: 850375 13937
Instrument Panel: 850376 13937B
Extension Set AQ Drive Unit 270D, 280: 839548 13938
Extension Set AQ Drive Unit 270D, 280: 814318 13938B
Extension Set AQ Drive Unit 270D, 280: 897830 13938C
Engine Room Fan Bilge Pump 13939
Tool Kit 13940 MD21B, AQD21B
Tool Kit: MD21B/110S 13941
Chemicals 13943

7742100 - 90- 90 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
Repair Kits
99

DESCRIPTION SEE SEC. NOTES

Repair Kits: MD21B/110S 13954 MD21B, AQD21B
Repair Kits: MD21B/110S 13955 MD21B, AQD21B
Repair Kits AQ Drive Unit 280 13956
Repair Kit S-Drive Unit 110S: MD21B/110S 13957
Repair Kits Reverse Gear MS3 13958

7742100 - 99- 99 Upd:2014-08-13

MD21B, AQD21B
 HeavyManuals.com
MD21B, AQD21B

REF DESCRIPTION SEE SEC.

21 Engine 21
23 Fuel System 23
26 Cooling System 26
27 Controls 27
30 Electrical System 30
44 Transmissions 44
64 Steering System 64
90 Miscellaneous Equipment 90
99 Repair Kits 99

7742100 - - TOC Upd:2014-08-13

MD21B, AQD21B