DIPACO

CATERPILLAR NEW SCROLL

3304B/3306B AND 3406B/3406C
PARTS CATALOG

April 2010
Updated April 2020

April 2010 CATERPILLAR NEW SCROLL 1

 INTRODUCTION

An Employee Owned Company

ADDRESS
DIPACO, Inc.
105 East Parr Boulevard
Reno, Nevada 89512 USA
Phone: (775) 329-7511
Fax: (775 329-9740
Toll Free Phone: (800) 648-4720
Toll Free Fax: (888) 320-7761
E-Mail: sales@dipaco.com
Internet: www. dipaco.com | www.dtechproducts.com

WHAT WE OFFER
• Providing quality fuel injection parts since 1948
• Comprehensive warranty
• Competitive pricing
• Excellence in customer service
• Company representation before and after sales
• Multi-skilled staff
• Extended trading hours
• Toll free phone and fax ordering
• Full technical support
• Quality commitment
• Superior quality inventory
• Same day shipping

INFORMATION
Copyright This catalog is in digital format to allow for
DIPACO, Inc. 2010. No part of this continuous updating as we add additional
publication may be reproduced in any parts. For current part availability, please
form by any means without written consult our current price list or contact
permission. DIPACO or your DIPACO distributor.

This catalog is for reference purposes

only. DIPACO assumes no
responsibility or liability for any errors
or inaccuracies that may appear in this
publication. All mention of OEM names
and part numbers are for reference
only.

2 2 CATERPILLAR NEW SCROLL April 2010

 TABLE OF CONTENTS

SUBJECT PAGE
3304B/3306B Fuel Pump........................................................................................................ Section 1
Camshaft............................................................................................................................................. 1-1
Plunger And Barrel.............................................................................................................................. 1-3
Governor............................................................................................................................................. 1-5

3406B/3406C Fuel Pump........................................................................................................ Section 2

Camshaft............................................................................................................................................. 2-1
Plunger And Barrel.............................................................................................................................. 2-3
Automatic Timing Advance Unit........................................................................................................... 2-5
Mechanical Governor.......................................................................................................................... 2-7
Electronic Governor............................................................................................................................2-11

Air Fuel Ratio..........................................................................................................................Section 3

All Pumps............................................................................................................................................ 3-1

Fuel Transfer Pump ............................................................................................................... Section 4

All Pumps............................................................................................................................................ 4-1

Primer Pump - Tach Drive Adapter - Solenoid..................................................................... Section 5

All Pumps............................................................................................................................................ 5-1

Gasket Kits.............................................................................................................................. Section 6

All Pumps............................................................................................................................................ 6-1

7000 Series Injectors.............................................................................................................Section 7

All Injectors.......................................................................................................................................... 7-1

April 2010 CATERPILLAR NEW SCROLL 3

Section 1

3304B/3306B NEW SCROLL FUEL PUMP

Pump Body - Camshaft

1 2 3 4 5 36 6 7 8 9 10 11 12 13 14

20
21

25 24 23 22 19 18 17 16 15

26 27 28 29 30 31 32

35 34 33

1 CATERPILLAR NEW SCROLL April 2010

 Section 1
3304B/3306B NEW SCROLL FUEL PUMP
Pump Body - Camshaft
REF PART DESCRIPTION QTY
1 6M5062 SEAL 1
2 2D6392 SEAL 1
3 7N5334 SCREW 1
4 4B2049 NUT 1
5 4W5735 LEVER 1
5 8N3168 THROTTLE LEVER 1
6 6N1716 VALVE ASSEMBLY 1
7 7N8768 GASKET 1
8 8B2377 BOLT 4
9 8N5783 DEFLECTOR - 3304B 1
9 8N5784 DEFLECTOR - 3306B 1
10 4F7957 BOLT - 3304B 4
10 4F7957 BOLT - 3306B 6
11 7N9521 COVER - 3304B 1
11 7N9907 COVER - 3306B 1
12 7N3104 GASKET - 3304B 1
12 7N9554 GASKET - 3306B 1
13 1B2713 BOLT 2
14 4B4276 WASHER 2
15 7N1046 GASKET 1
16 0S1615 BOLT 1
17 7N1047 COVER 1
18 0S1615 BOLT 1
19 8F6302 BOLT 1
20 6B4198 BOLT 2
21 0S1616 BOLT 1
22 2N2878 SPRING 1
23 7N2176 PIN (DETENT) 1
24 7N1052 DOWEL 1
25 8N3096 SPRING (DETENT) 1
26 8N2510 SHAFT 1
27 119-8699 WEIGHT 4
28 5P9087 BOLT 4
29 1S5440 DOWEL 4
30 8N2511 CARRIER 1
31 4N9019 DOWEL 1
32 2W6175 CAMSHAFT - 3304B 1
32 1W2555 CAMSHAFT - 3306B 1
33 7N7166 RACE 1
34 7L3326 BEARING 1
35 7N7265 SHIELD 1
36 8N2496 GASKET 1

NOTE: MUST USE 133-8899 RACE WITH

119-8699 WEIGHT.

April 2010 CATERPILLAR NEW SCROLL 2

Section 1

3304B/3306B NEW SCROLL FUEL PUMP

Plunger And Barrel

1
2
3

12

13
8 14

9
15
16

10
17

11 18

3 CATERPILLAR NEW SCROLL April 2010

 Section 1
3304B/3306B NEW SCROLL FUEL PUMP
Plunger And Barrel
REF PART DESCRIPTION QTY
1 8N2516 BONNET 4/6
1 1W9171 BONNET 4/6
1 6I1327 BONNET 4/6
2 8N1414 CHECK VALVE 4/6
2 1W6987 CHECK VALVE 4/6
3 8N1415 SPRING 4/6
4 7W1927 RING 4/6
5 1W6541 PLUNGER & BARREL - 9MM 4/6
5 7W5929 PLUNGER & BARREL - 10MM 4/6
5 4P9830 PLUNGER & BARREL - 10.5MM 4/6
6 7N1067 PLUNGER SPRING 4/6
7 7W2808 SPRING RETAINER 4/6
7 7N1415 WASHER 4/6
7 7N1066 SPRING RETAINER 4/6
8 1S1953 BEARING 1
9 1W3285 RACK - 3304 1
9 1W3286 RACK - 3306 1
10 8N2518 BEARING 1
10 4P9828 BUSHING 1
11 9S4180 PLUG 2
12 8N5117 BUSHING 4/6
13 114-8718 O-RING 4/6
14 4W6869 SPACER 4/6
15 1W3285 BEARING 1
16 4P9832 LIFTER ASSEMBLY 4/6
17 7N8421 RING 1
18 7N7970 BEARING 1

P & B Assembly Parts List

Plunger Check Valve

P & B Group P&B OD Bonnet Check Valve Spring Note
4P9827 D4P9830 10.5 mm D6I1327 D1W6987 D8N1415 The bonnet requires a 7C9966 spherical incert
D1W6539-1 D1W6541 9.0 mm D8N2516 D8N1414 D8N1415 Replaced by D1W6539-2. Must be updated in complete sets.
D1W6539-2 D1W6541 9.0 mm D1W9171 D1W6987 D8N1415
D7W5928 D7W5929 10.0 mm D1W9171 D1W6987 D8N1415

April 2010 CATERPILLAR NEW SCROLL 4

Section 1

3304B/3306B NEW SCROLL FUEL PUMP

Governor

A
7 8

6 9

5
4
C
10

11 24
25
3
12 26
B
13
14

2 15
1 VIEW C-C
C 16
27 28 29 30 31

A B

23 22 21 20 19 18 17
SEE PAGE 1-7
FOR VIEW A-A
40 41 42 43 44

50
32 33 34 49

45
46

35

48

39 38 37 36
VIEW B-B

47

5 CATERPILLAR NEW SCROLL April 2010

 Section 1
3304B/3306B NEW SCROLL FUEL PUMP
Governor
REF PART DESCRIPTION QTY
1 8F8178 BOLT 1
2 8F8178 BOLT 1
3 4N1761 BOLT 1
4 4N0117 GASKET 1
5 2W5448 COVER 1
6 4N1761 BOLT 1
7 0S1615 BOLT 1
8 4N1761 BOLT 1
9 4N1761 BOLT 4
10 5L4758 SEAL 1
11 8T2604 SEAL 1
12 3J7354 SEAL 1
13 4N5485 BODY 1
- 5F9144 SEAL 1
14 4N5484 VALVE 1
- 6H9691 SEAL 1
15 4F7957 BOLT 6
16 7N8780 COVER ASSEMBLY 1
17 7N8779 GASKET 1
18 3P0009 INSULATOR 1
19 1P2497 BOLT 2
20 8N3258 COVER 1
21 4N1761 BOLT 4
22 6I2004 GASKET 1
23 2S7383 BOLT 1
24 5N4185 SEALING WASHER 1
25 9M1974 WASHER 1
26 7W4272 NUT 1
27 7N2594 SETSCREW 1
28 7N2171 RING 1
29 7N2172 PIN 1
30 8N3087 STOP 1
31 2W7400 SPRING 1
32 7N5334 SETSCREW 1
33 4B2049 NUT 1
34 8N7276 CONTROL GROUP 1
35 8N2488 BOLT 1
36 1W4243 SPRING 1
37 8N3256 COLLAR 1
38 4B2049 NUT 1
39 5N4185 SEALING WASHER 1
40 4N1761 BOLT 4
41 0S1615 BOLT 2
42 8M8515 BOLT 1
43 9S4191 PLUG 1
44 3J1907 SEAL 1
45 5L4758 SEAL 1
46 8N5403 SHAFT ASSEMBLY-LONG 1
46 8N3088 SHAFT ASSEMBLY-SHORT 1
47 2S7383 BOLT 1
48 8F8178 BOLT 2
49 6I2002 COVER 1
50 2W5447 GASKET 1

April 2010 CATERPILLAR NEW SCROLL 6

Section 1

3304B/3306B NEW SCROLL FUEL PUMP

Governor

1 2 3 4 5 6

32

33
10

11
A A 34
12

17
13
18 14
VIEW A-A
15
16

24
23
22
21 25 26 27 28 29 30 31
20
19 VIEW A-A FROM PAGE 1-5
36 37

35

7 CATERPILLAR NEW SCROLL April 2010

 Section 1
3304B/3306B NEW SCROLL FUEL PUMP
Governor
REF PART DESCRIPTION QTY
1 7N8785 SHAFT 1
2 2M7819 RING 1
3 1N3802 SEAT 1
4 1N3801 SPRING 1
5 8N2496 GASKET 1
6 1N3800 SLEEVE 1
7 2M7819 RING 1
8 8N2507 PISTON ASSEMBLY 1
8N2505 VALVE 1
7N7271 LEVER 1
3G3835 PIN 1
9 031-0216 BOLT 3
10 7W0250 SLEEVE 1
11 5P9757 SEAL 1
12 1W4098 PISTON 1
13 4N2953 RING 1
14 4N2927 RACE (O.D. 0.791”) 1
14 7E4892 RACE (O.D. 0.915”) 1
14 133-8890 RACE (O.D. 1.174”) 1
15 7M7219 BEARING 1
16 4W6868 RISER 1
17 4N0260 SEAL 1
18 8N2501 HOUSING ASSEMBLY 1
19 7N8821 RING 2
20 3D8317 RING 1
21 4N0432 BEARING 1
22 3K5733 SPRING 1
23 7N7270 SLEEVE 2
24 8N2499 GUIDE 1
25 4N6404 RING 1
26 6N3504 SEAT 1
27 2P9556 WASHER 1
28 2N0828 WASHER 2
29 8N2503 DASHPOT ASSEMBLY 1
- 4N6407 SPOOL 1
- 4N6406 RING 1
30 7N7267 SPRING 1
31 8N2495 HOUSING ASSEMBLY 1
32 2W6102 LEVER 1
33 8N3168 LEVER 1
34 2W9305 PLATE 2
35 7N5334 SETSCREW 1
36 4B2049 NUT 1
37 2W1861 CONTROL GROUP 1

April 2010 CATERPILLAR NEW SCROLL 8

Section 2

3406B/3406C NEW SCROLL FUEL PUMP

Pump Body - Camshaft

5 6 7 8 9 10 11

1 2 3 4

15 12
16
17 13
18
40 19
20 14
39
21
22

35 34 33 32 31 30 29 28
38 37 36
27 26 25 24 23

5 6 7 8 9 10 11

1 2 3 4

15 12
16
13
17
18
37 19
20 14
36
21
22

1 CATERPILLAR NEW SCROLL April 2010

34 33 32 31 30 29 28 27 26
40 35
38 39 25 24 23
 Section 2
3406B/3406C NEW SCROLL FUEL PUMP
Pump Body - Camshaft
REF PART DESCRIPTION QTY
1 4F7957 BOLT 4
2 9S4182 PLUG 1
3 3J7354 SEAL 1
4 1W5785 COVER 1
5 1H9696 O RING 1
6 1W3285 RACK BEARING 1
7 4P7045 DOWEL 6
8 2A0762 BOLT 14
9 7W0683 COVER 1
10 8N9374 GASKET 1
11 1W3151 ELBOW ASSEMBLY 1
1W3153 ORIFICE 1
3J1907 SEAL 1
12 6I2002 GASKET 1
13 2W5448 COVER 1
14 4F7957 BOLT 2
15 8S6814 DOWEL PIN 1
16 9S8001 PLUG 1
- 4J7533 SEAL 1
17 1S1953 RACK BEARING 1
18 8N9367 RACK 1
19 6V5894 BOLT 2
20 7N7166 RACE 2
21 7L3326 BEARING 1
22 9S8007 PLUG 1
- 7J0204 SEAL 1
23 9N6668 BEARING 1
24 8N9382 GASKET 1
25 6V5894 BOLT 2
26 1S0004 O RING 1
27 9M9647 SEAL O RING 1
28 8N2648 BEARING 1
29 9S8007 PLUG 1
- 7J0204 SEAL 1
30 9S4182 PLUG 1
31 3J7354 SEAL 1
32 8N3731 PIN 6
33 3H0442 O RING 6
34 9S8003 O RING 1
35 9N6667 BEARING 1
36 7D1189 BEARING 1
37 9J0114 RACE 2
38 6F4718 O RING 1
39 7W3102 CAMSHAFT 1
40 6V5135 SETSCREW 4

April 2010 CATERPILLAR NEW SCROLL 2

Section 2

3406B/3406C NEW SCROLL FUEL PUMP

Plunger And Barrel

6
7
1
2
8
3

3 CATERPILLAR NEW SCROLL April 2010

 Section 2
3406B/3406C NEW SCROLL FUEL PUMP
Plunger And Barrel
REF PART DESCRIPTION QTY
1 108-2102 BONNET 6
2 4P7688 CHECK VALVE 6
2 4P9258 CHECK VALVE 6
2 115-5705 CHECK VALVE 6
3 8N5993 SPRING 6
4 1N3257 RETAINER RING 6
5 108-2104 PLUNGER & BARREL ASSEMBLY 6
5 108-6631 PLUNGER & BARREL ASSEMBLY 6
6 7C6617 BUSHING 6
7 131-3719 O RING 6
8 8N0672 SPACER .1988" (108-6631 ONLY) 6
8 7E9907 SPACER .2662" (108-2104 ONLY) 6
9 7E6011 LIFTER 6

NOTE: MUST USE 7E9907 SPACER WITH

108-2104 PLUNGER & BARREL
ASSEMBLY.

MUST USE 8N0672 SPACER WITH

108-6631 PLUNGER & BARREL
ASSEMBLY.

108-2104 PLUNGER LENGTH

3.0481”

108-6631 PLUNGER LENGTH

3.1120”

April 2010 CATERPILLAR NEW SCROLL 4

Section 2

3406B/3406C NEW SCROLL FUEL PUMP

3406B Automatic Timing Advance Unit (Early)

20 21 22 23 24 25 26 27

28 29 30 31

46

45

44
43
42

FUEL PUMP
41 CAMSHAFT

40

39 38 37 36 35 34 33 32

5 CATERPILLAR NEW SCROLL April 2010

 Section 2
3406B/3406C NEW SCROLL FUEL PUMP
3406B Automatic Timing Advance Unit (Early)
REF PART DESCRIPTION QTY
20 1S5440 DOWEL 4
21 1W5434 CARRIER 4
22 5P3383 NUT 2
23 1W5441 RETAINING ASSEMBLY 1
24 1W5431 RING 1
25 7W0993 GEAR (64 TEETH) 1
26 6H3958 BOLT 4
27 4W0436 SEAL 1
27 9X7715 SEAL 1
28 4W0435 SEAL 1
29 1W5438 SPOOL 1
30 4W4616 SEAL 1
31 4W4617 PLUG 1
32 4W4618 BODY 1
33 1W5436 CARRIER 1
34 7W3218 RING 1
35 8F1145 RING 1
36 4N2927 RACE 1
37 6V7543 BOLT 4
38 6L5897 BOLT 4
39 8S7803 RING 1
40 1W5427 SPRING 1
41 3S4701 NUT 1
42 4W0811 SCREW 1
43 5H6552 SETSCREW 1
44 4B2049 NUT 1
45 2W4742 SPRING 1
46 7N7264 WEIGHT 4

April 2010 CATERPILLAR NEW SCROLL 6

Section 2

3406B/3406C NEW SCROLL FUEL PUMP

3406B Automatic Timing Advance Unit (Late)

7 CATERPILLAR NEW SCROLL April 2010

 Section 2
3406B/3406C NEW SCROLL FUEL PUMP
3406B Automatic Timing Advance Unit (Late)
REF PART DESCRIPTION QTY
1 7W0993 GEAR PUMP DRIVE (64 TEETH) 1
2 100-2848 RING GUIDE 1
3 132-7446 CARRIER ASSEMBLY 1
4 0T0065 BOLT (3/8-16 X 3.5 IN) 8
5 100-2851 RING DRIVE 1
6 9X7715 SEAL (LOBED) (90.93MM ID) 1
7 6V7698 BOLT (HEX HEAD) 8
(1/4-20 X 3.25 IN)
8 1B4427 NUT JAM (1/4-20 THD) 8
9 4W2754 SEAL (QUAD RING) (50.17MM ID) 1
10 132-7444 CARRIER WEIGHT 1
11 1S5440 DOWEL 4
12 119-2130 WEIGHT GOVERNOR 4
13 6I3054 SPRING 1
14 3K3467 NUT WHEEL (7/8-20 THD) 1
15 4P1638 SCREW 1
16 5H6552 SETSCREW SOCKET 1
(31.75MM LG)
17 8L5832 NUT HEX (10-32 THD) 1
18 8C9034 BOLT (10-24 X 1 IN) 4
19 009-3101 RING RETAINER 1
20 4P7690 RACE (FLYWEIGHT) 2
21 9Y7450 RETAINER 2
22 4P7691 SPOOL (ADVANCE) 1
23 100-2847 COVER (FLYWEIGHT) 1
24 100-2849 PLATE 1
25 4P3337 RACE (FLYWEIGHT) 1
26 8T9394 SCREW (SOCKET HEAD) 4

April 2010 CATERPILLAR NEW SCROLL 8

Section 2

3406B/3406C NEW SCROLL FUEL PUMP

3406B Mechanical Governor

7 8 9
1

9
10
2
11
12

13
14
15
16

2 17

3
4
5

20 27 28

18 21
19 22

23

24
28

26 25

9 CATERPILLAR NEW SCROLL April 2010

 Section 2
3406B/3406C NEW SCROLL FUEL PUMP
3406B Mechanical Governor
REF PART DESCRIPTION QTY
1 6V5029 SEAL 1
2 9S8003 PLUG O RING 2
- 1J9671 SEAL O RING 2
3 2N5919 BOLT 2
4 8N3762 COVER 1
5 8N3763 GASKET 1
6 8J8343 O RING 1
7 8M8515 O RING 1
8 8N6680 SCREEN 1
9 2D6392 O RING 1
10 5P6620 O RING 1
11 033-5879 O RING 1
12 1N3887 SETSCREW-SOCKET 1
13 5B3180 JAM NUT 1
14 1N3935 COVER 1
15 8N3765 GASKET 1
16 4W9362 SEALING NUT 1
17 7N2594 SLOTTED SETSCREW 1
18 5H6552 SETSCREW 1
19 4B2049 BOLT 1
20 3P0009 INSULATOR STUD 1
21 7N5334 SETSCREW 1
22 4B2049 NUT 1
23 7W8405 CONTACT 1
24 8N3956 BLOCK ASSEMBLY 1
8N3303 DOWEL 1
25 1W4243 SPRING-BUMPER 1
26 7W5836 BOLT ASSEMBLY 1
27 6D3897 BOLT 1
28 6L5551 BOLT 2

April 2010 CATERPILLAR NEW SCROLL 10

Section 2

3406B/3406C NEW SCROLL FUEL PUMP

3406B Mechanical Governor

39 40 41 42

1 2 3 4

43
38
44
37
36
35

34
33

32 5
31 6 47 46 45
7
30
8
29 9

28 10
11
48
12
27 13
14

49

15 50
51

53 52
16

26 25 24 23 22 21 20 19 18 17

11 CATERPILLAR NEW SCROLL April 2010

 Section 2
3406B/3406C NEW SCROLL FUEL PUMP
3406B Mechanical Governor
REF PART DESCRIPTION QTY REF PART DESCRIPTION QTY
1 5H6552 SETSCREW 1 35 2W2216 SPRING 1
- 4B2049 NUT 1 36 4N5621 SHAFT 1
2 8N9384 GASKET 1 37 4W5735 LEVER ASSEMBLY 1
3 1N3800 SLEEVE 1 38 6V6835 SETSCREW 1
4 1W4098 PISTON 1 - 4B2049 NUT 1
5 031-0216 BOLT 3 39 2M7819 RING 1
6 8N2507 PISTON ASSEMBLY 1 40 2W0800 LEVER 1
8N2505 VALVE GOVERNOR 1 41 4W5734 LEVER ASSEMBLY 1
7N7271 LEVER 1 42 2W0799 SPRING 1
3G3835 PIN 1 43 2W0801 SHAFT 1
7 5P9757 SEAL 1 44 8S7803 RING 1
8 1S5440 DOWEL 1 45 1W3961 SPACER 1
9 4N2927 RACE (O.D. 0.791”) 2 46 6V6835 SETSCREW 1
9 7E4892 RACE (O.D. 0.915”) 2 - 4B2049 NUT 1
9 133-8890 RACE (O.D. 1.174”) 2 47 1W3962 SPACER 1
10 7M7219 BEARING 1 48 1W5337 SHAFT ASSEMBLY 1
11 5P9087 BOLT 4 49 8T2604 SEAL 1
12 4N9019 DOWEL 1 50 8N3945 BUSHING 1
13 8N2510 SHAFT 1 51 1K3047 WASHER 1
14 4N2953 RING 1 52 5H2532 KEY 1
15 8N2511 CARRIER 1 53 2W6102 LEVER 1
16 8N9680 HOUSING ASSEMBLY 1
8S6814 PIN (LONG) 4
4F6024 PIN (SHORT) 2 NOTE: MUST USE 133-8899 RACE WITH
17 119-8699 WEIGHT 4 119-8699 WEIGHT.
18 4W6868 RISER 1
19 7N7267 SPRING 1
20 7W4068 DASHPOT ASSEMBLY 1
7W4882 SPRING 1
7N7268 SEAT 1
1N3861 SHIELD 1
4N6408 PISTON ASSEMBLY 1
4N6407 SPOOL 1
4N6406 SPACER RING 1
4N6404 RETAINING RING 1
21 2P9556 WASHER 1
- 2N0828 SPRING WASHER 1
22 6N3504 SEAT 1
23 7N8821 RING 2
24 3K5733 SPRING 1
25 7N7270 SLEEVE 2
26 4N0432 BEARING 1
27 4N0260 SEAL 1
28 7W4182 VALVE BODY 1
- 5F9144 SEAL 1
29 4N5484 VALVE 1
- 6H9691 SEAL 1
30 8N3760 COVER 1
- 8N3761 GASKET 1
- 030-9615 SCREW 4
31 1W5342 LEVER 1
32 0S1588 BOLT 1
33 2M7819 RING 2
34 1N3802 SEAT 1

April 2010 CATERPILLAR NEW SCROLL 12

Section 2

3406B/3406C NEW SCROLL FUEL PUMP

3406B Mechanical Governor

19

13 CATERPILLAR NEW SCROLL April 2010

 Section 2
3406B/3406C NEW SCROLL FUEL PUMP
3406B Mechanical Governor
REF PART DESCRIPTION QTY
4 5H2532 KEY 1
5 1W5341 LEVER-SHUT OFF 1
6 2W6102 LEVER-SPRING SEAT 1
7 2W9305 PLATE 1
8 1W5339 SHAFT ASSEMBLY 1
10 7N2176 PIN-DETENT 1
11 7N1052 DOWEL 1
12 6V8137 SCREW 2
14 2W-9657 SPRING-DETENT 1
15 7W2000 STOP-DETENT 1
16 7W1321 PLATE 1
17 7W1318 RETAINING PLATE 1
18 2W7400 SPRING 1
19 8T2604 SEAL 1

April 2010 CATERPILLAR NEW SCROLL 14

Section 2

3406B/3406C NEW SCROLL FUEL PUMP

3406C Electronic Governor

1 2 3 4 5 B

C
B
6
SECTION A-A

7 8

17

16 11

12

15
SECTION B-B

9 10

13

14

SECTION C-C

15 CATERPILLAR NEW SCROLL April 2010

 Section 2
3406B/3406C NEW SCROLL FUEL PUMP
3406C Electronic Governor
REF PART DESCRIPTION QTY
1 8M2771 CLIP 1
2 0S1347 BOLT 2
3 4W2482 CLAMP 2
4 105-2939 SOLENOID-ROTARY 1
- 2H3931 O RING 1
5 4W2283 GOVERNOR-ELECTRONIC 1
6 4W2491 GASKET 1
7 3E0076 SOLENOID ASSEMBLY 1
8 6V1903 O RING 1
9 7F8607 O RING 1
10 3E8540 CONTROL GROUP 1
108-4747 HOUSING 1
11 100-6619 SENSOR-DIGITAL 1
12 8S4710 BOLT 2
- 5P0537 WASHER 2
13 9X4450 CONTROL GROUP 1
14 7W7290 GASKET 1
15 4W2365 RETAINER 1
16 9B1722 SCREW 3
17 4W2619 HOUSING ASSEMBLY 1
6L2244 PIN SPRING) 2
8S6814 PIN (DOWEL) 2

April 2010 CATERPILLAR NEW SCROLL 16

Section 2

3406B/3406C NEW SCROLL FUEL PUMP

3406C Electronic3406C
Governor
ELECTRONIC GOVERNOR

1 2 3

10

B 14
9

8 13

B
A 12 11 SECTION B-B

7 5

15
16

17
20 21 22 23
18
19

SECTION A-A

17 CATERPILLAR NEW SCROLL April 2010

 Section 2
3406B/3406C NEW SCROLL FUEL PUMP
3406C Electronic Governor
REF PART DESCRIPTION QTY
1 5P0537 WASHER 9
2 1B2714 BOLT 1
3 4W9590 LEVER GROUP 1
4 1B2717 BOLT 3
5 5P0537 WASHER 9
6 9F6580 BOLT 3
7 5P0537 WASHER 9
8 5P0537 WASHER 9
9 2A5546 BOLT 1
10 4B4909 SPRING 1
11 4W2480 NUT 1
12 4P9667 COLLAR 1
13 1B2717 BOLT 3
14 5P0537 WASHER 9
15 5P0537 WASHER 9
16 1B2717 BOLT 3
17 5P0537 WASHER 9
18 9F6580 BOLT 3
19 7E3502 BOLT 3
20 4P1367 PISTON ASSEMBLY 1
4P1372 PISTON 1
5P9757 O RING 1
7W7809 VALVE 1
21 2M7819 RETAINER RING 2
22 1N3800 SLEEVE 1
23 1N3801 SPRING 1

April 2010 CATERPILLAR NEW SCROLL 18

Section 2

3406B/3406C NEW SCROLL FUEL PUMP

3406C Electronic Governor
3406C ELECTRONIC GOVERNOR

7
1 2 3 4 5 6

A B 8
9

10
11

A B

SECTION A-A

22

21

23
27
12
26

25 13

14

15
24
16

17 18 19 20

SECTION B-B

19 CATERPILLAR NEW SCROLL April 2010

 Section 2
3406B/3406C NEW SCROLL FUEL PUMP
3406C Electronic Governor
REF PART DESCRIPTION QTY
1 7E5398 HOUSING 1
2 4W2488 GASKET 1
3 4W2525 HOUSING ASSEMBLY 1
4 8B2377 BOLT 1
- 5P0537 WASHER 8
5 4W2489 GASKET 1
6 4W2283 COVER 1
7 5P0537 WASHER 8
8 4B9365 BOLT 3
9 7C2646 CLIP ASSEMBLY 1
- 8C3334 RIVET 6
10 6L1559 BOLT 2
11 5P0537 WASHER 8
12 2A5546 BOLT 2
- 5P0537 WASHER 8
13 4W2372 SHAFT 1
14 8S7803 RETAINING RING 1
15 6V5029 SEAL 1
16 7W9850 SPRING 1
17 5P0537 WASHER 8
18 2A5546 BOLT 2
19 4W2371 LEVER 1
20 2W7819 RETAINING RING 1
21 4W6962 PLATE 1
22 4P1351 LEVER ASSEMBLY 1
6H3956 PIN 1
23 4W6961 SHAFT 1
24 9Y7836 CLIP ASSEMBLY 1
8C3334 RIVET 4
25 4W6963 CLAMP 1
26 1H3340 BOLT 1
27 4W2484 SPRING 1

April 2010 CATERPILLAR NEW SCROLL 20

Section 3

NEW SCROLL FUEL PUMPS

Air Fuel Ratio

1 CATERPILLAR NEW SCROLL April 2010

 Section 3
NEW SCROLL FUEL PUMPS
Air Fuel Ratio
REF PART DESCRIPTION QTY
1 1W2076 COVER - EARLY 1
1 4P7274 COVER - LATE 1
2 1B4201 NUT 1
3 4W0924 RETAINER 1
4 7W2826 SPRING 1
5 106-6493 WASHER 1
6 7W2829 COVER 1
7 7N9062 HOUSING 1
8 8N5763 SEAL 1
9 8N5764 PISTON 1
10 8F4610 RING 1
11 2W9316 VALVE ASSEMBLY 1
12 2W9315 WASHER 2
13 7N9036 VALVE (INTERNAL) 1
14 8N5765 SPRING 1
15 7W2015 EXTENSION (VALVE) 1
16 7W2827 SPRING - 3306B 1
16 7W2828 SPRING - 3406B 1
17 9N1754 SPRING
18 6I1564 DIAPHRAGM 1
19 7J0204 SEAL 1
20 4P9608 GASKET USE WITH 1W2076 COVER 1
20 5P8210 O-RING USE WITH 4P7274 COVER 1
21 5P0537 WASHER 2
22 2A5546 BOLT 2
23 5P6945 BOLT 2
24 5P0537 WASHER 2

April 2010 CATERPILLAR NEW SCROLL 2

Section 4

NEW SCROLL FUEL PUMPS

Fuel Transfer Pump

5 6 7 8 9

4
10
3

2
11
1

12

16 15 14 13

19

20

17

18

17

17 20

1 CATERPILLAR NEW SCROLL April 2010

 Section 4
NEW SCROLL FUEL PUMPS
Fuel Transfer Pump
REF PART DESCRIPTION QTY
1 8N2637 WASHER 1
2 7C0396 SPACER 1
3 8N2641 SLEEVE 1
4 1W1669 PISTON 1
5 1W1698 HOUSING 1
6 1W5910 GUIDE AND TAPPET ASSEMBLY 1
7 6J2419 O RING 1
8 7W8412 VALVE ASSEMBLY 3
9 3D2824 O RING 1
10 6D8498 SCREW 2
11 8N2640 COVER 1
12 6F6672 O RING 1
13 1W1699 COVER 1
14 3D2898 O RING 1
15 5P8215 O RING 1
16 7W0134 SPRING 1
17 0S1615 BOLT 3
18 4J8997 SEAL 1
19 4B9365 BOLT 1
20 5P0537 WASHER 2

April 2010 CATERPILLAR NEW SCROLL 2

Section 5

NEW SCROLL FUEL PUMPS

Primer Pump - Tach Drive Adapter - Solenoid

1
3
1

2 4
7
6 3
4
5
5

PRIMER PUMP TACH DRIVE ADAPTER

3300/3406B

9
10

SOLENOID ASSEMBLY

1 CATERPILLAR NEW SCROLL April 2010

 Section 5
NEW SCROLL FUEL PUMPS
Primer Pump - Tach Drive Adapter - Solenoid
REF PART DESCRIPTION QTY
PRIMER PUMPS
1 4W0788 PUMP ASSEMBLY 3208/3300/3400B 1
2 1H5514 BOLT 1
3 9M1974 WASHER 1
4 5P0537 WASHER 1
5 1P0436 GASKET 1
6 9M1974 WASHER 1
7 9F7022 BOLT 1

TACH DRIVE ADAPTER -

3300/3406B
1 9S0211 CLAMP 2
2 4M5281 BOLT 2
3 4M8303 O RING 1
4 4N0538 COUPLING 1
5 1W2316 HOUSING 1

SOLENOID ASSEMBLY
8 125-5773 12V SHUTOFF SOLENOID 1
8 125-5774 24V SHUTOFF SOLENOID 1
8 125-5775 32V SOLENOID ASSEMBLY 1
9 9F6580 BOLT 2
10 2W5447 GASKET 1

LIFT PUMP REPAIR KITS

- DPE22240 REPAIR KIT 1
3300-3406 SERIES
- DPE22245 REPAIR KIT 1
3300-3406 SERIES

April 2010 CATERPILLAR NEW SCROLL 2

Section 6

NEW SCROLL FUEL PUMPS

Gasket Kits

PART NUMBER DESCRIPTION APPLICATION

DPE22240..................... LIFT PUMP REPAIR KIT (1W1695-1W1700 PUMP GROUP-LATE)........3300-3406 SERIES
DPE22245..................... LIFT PUMP REPAIR KIT (7N6831 PUMP GROUP-EARLY).....................3300-3406 SERIES
DPE3300SC.................. NEW SCROLL GASKET KIT.............................................................................. 3300 SERIES
DPE3406BPM............... NEW SCROLL PUMP MOUNT GASKET KIT............................................................ 3406B/C
DPE3406B..................... OVERHAUL GASKET KIT (W/ MECHANICAL GOVERNORS)................................. 3406B/C
DPE3406C.................... OVERHAUL GASKET KIT (W/ ELECTRONIC GOVERNORS).....................................3406C

DIPACO has developed special gasket kits and overhaul gasket kits for Caterpillar fuel pumps. These kits are
designed to contain all of the gaskets, seals, o-rings, and other items you need to work on any fuel pump within the
applicable series. These kits eliminate the need for a fuel shop to stock numerous different versions of gasket kits
for one fuel pump series, saving the fuel shop time and money.

1 CATERPILLAR NEW SCROLL April 2010

 Section 6
NEW SCROLL FUEL PUMPS
Miscellaneous Kits

PART NUMBER DESCRIPTION

DPE17219..................... RISER BEARING & WASHER KIT
CONTENTS: D7M7219 (BEARING) (1), D4N2927 (RACE) (2)
DPE3305....................... GOVERNOR UPDATE KIT
CONTENTS: D8N2511 (WEIGHT CARRIER) (1), D7M7219 (BEARING) (1), D1S5440 (WEIGHT DOWEL) (4),
D119-8699 (WEIGHT) (4), D133-8890 (2)

April 2010 CATERPILLAR NEW SCROLL 2

Section 7

NEW SCROLL FUEL PUMPS

7000 Series Injectors

1 CATERPILLAR NEW SCROLL April 2010

 Section 7
NEW SCROLL FUEL PUMPS
7000 Series Injectors
REF PART DESCRIPTION QTY
1 9L9089 CARBON DAM 1
2 - SEE CHART 1
3 DPE7002 O-RING, STEM 1
4 114-3364 WASHER 1
5 9X2836 BLEED SCREW 1
6 DPE7001 O-RING, INLET ADAPTER 1

INJECTOR COMPRESSION WASHER REFERENCE

Compression Washer Color Thickness/mm (in) Material

8N4183 LT. YELLOW 1.27 (0.050) NYLON
4W3914 GREY 1.27 (0.050) COPPER
4W6060 BLUE 3.18 (0.125) NYLON
7W4482 GREEN 3.18 (0.125) COPPER
7W4483 RED 2.54 (0.100) COPPER
7W4485 COPPER 1.27 (0.050) COPPER
7W4486 VIOLET 1.84 (0.072) COPPER
7W4487 BLACK 1.27 (0.050) COPPER
7W8119 YELLOW 1.84 (0.072) COPPER

April 2010 CATERPILLAR NEW SCROLL 2

Section 7

NEW SCROLL FUEL PUMPS

7000 Series Injectors

VOP REFERENCE
(1) 1,600 - 2,350 PSI
(2) 2,000 - 2,700 PSI
(3) 3,000 - 3,900 PSI
(4) 2,700 - 3,500 PSI
(5) 2,400 - 3,200 PSI

Injector Assembly Compression Washer VOP Injector Assembly Compression Washer VOP
100-7550 7W4487 (2) 7W7035 7W4487 (1)
100-7551 7W4487 (2) 7W7037 7W4487 (1)
100-7552 7W4482 (2) 7W7038 7W4482 (1)
100-7553 7W4487 7W7040 7W4487 (2)
100-7554 7W4487 7W7041 7W4487 (2)
100-7556 7W4487 (2) 7W7042 7W4487 (2)
100-7557 7W4487 (2) 7W7043 7W4487 (2)
100-7558 7W4487 (2) 7W7044 7W4487 (2)
100-7559 7W4486 (2) 7W7045 7W4482 (2)
100-7560 4W4487 (2) 8N7001 8N4183 (1)
100-7561 7W4486 (2) 8N7002 8N4183 (1)
100-7562 7W4482 (2) 8N7003 7W4486 (1)
100-7563 7W4482 (2) 8N7004 4W3914 (1)
100-7564 7W4486 (2) 8N7005 7W4486 (1)
100-7565 7W4487 (2) 8N7006 8N4183 (1)
100-7567 7W4487 (3) 8N7007 7W4487 (1)
100-7600 7W4487 (2) 0R4335 7W4487 (2)
100-7600 7W4487 0R4336 7W4482 (2)
104-3377 7W4482 (2) 0R4338 7W4487 (2)
104-9450 7W4486 (3) 0R4339 7W4487 (2)
104-9451 7W4486 0R4340 7W4486 (2)
104-9452 7W4486 (3) 0R4341 4W4487 (2)
104-9453 7W4486 (3) 0R4343 7W4482 (2)
104-9454 7W4486 (3) 0R8782 7W4482 (2)
104-9455 7W4486 0R8783 7W4486 (2)
121-4353 7W4487 (3) 0R4337 7W4487 (2)
127-9792 7W4487 (4) 0R4337 7W4487
127-9793 7W4487 (4) 0R8786 7W4482 (2)
128-3815 7W4485 0R8289 7W4487 (4)
129-1351 7W4487 (2) 0R8290 7W4487 (4)
130-1804 7W4487 (4) 0R9943 7W4487 (2)
130-1806 7W4487 (4) 0R8787 7W4487 (4)
130-5187 7W4487 (4) 0R8788 7W4487 (4)
130-5190 7W4487 (4) 0R8789 7W4487 (4)
131-0811 7W4487 (4) 0R8790 7W4487 (4)
131-0812 7W4487 (4) 0R8242 7W4487 (4)
131-1242 7W4487 (4) 0R8243 7W4487 (4)
131-1243 7W4487 (4) 0R1741 7W4485 (1)
131-3190 7W4486 0R1745 4W6060 (1)
131-7937 7W4487 (4) 0R1742 4W6060 (1)
133-3896 7W4483 (4) 0R1741 7W4485 (1)

3 CATERPILLAR NEW SCROLL April 2010

 Section 7
NEW SCROLL FUEL PUMPS
7000 Series Injectors

Injector Assembly Compression Washer VOP Injector Assembly Compression Washer VOP
134-0944 7W4487 (4) 0R1743 7W4485 (1)
154-3198 7W4486 (5) 0R3420 7W4485 (1)
167-7489 7W4482 (2) 0R1744 7W4487 (1)
170-5181 7W4482 (2) 0R1745 7W4482 (1)
170-5183 7W5182 (2) 0R3536 7W4482 (1)
170-5187 7W4486 (1) 0R8791 7W4482 (1)
171-4093 7W4487 (2) 0R9797 7W4482 (1)
4W7011 7W4485 (1) 0R1749 7W4482 (1)
4W7012 4W6060 (1) 0R3093 7W4485 (1)
4W7013 4W6060 (1) 0R1746 7W4487 (1)
4W7014 4W6060 (1) 0R8784 7W4487 (1)
4W7015 4W6060 (1) 0R8785 7W4487 (1)
4W7016 7W4485 (1) 0R1747 7W4487 (1)
4W7016 7W4485 (1) 0R1748 7W4487 (1)
4W7016 7W4485 (1) 0R4124 7W4482 (1)
4W7017 7W4487 (1) 0R3586 7W4487 (2)
4W7018 7W4482 (1) 0R3587 7W4487 (2)
4W7019 7W4482 (1) 0R3588 7W4487 (2)
4W7020 7W4482 (1) 0R3589 7W4487 (2)
4W7021 7W4482 (1) 0R3590 7W4487 (2)
4W7022 7W4482 (1) 0R3591 7W4482 (2)
7W7023 7W8119 (1) 0R1740 8N4183 (1)
7W7024 7W4485 (1) 0R1739 8N4183 (1)
7W7026 7W4487 (1) 0R1739 7W4486 (1)
7W7030 7W4487 (1) 0R3419 4W3914 (1)
7W7031 7W4487 (1) 0R1740 7W4486 (1)
7W7032 7W4487 (1) 0R1744 8N4183 (1)
7W7033 7W4487 (1) 0R1744 7W4487 (1)
131-0812 7W4487 (4) 0R8242 7W4487 (4)
131-1242 7W4487 (4) 0R8243 7W4487 (4)
131-1243 7W4487 (4) 0R1741 7W4485 (1)
131-3190 7W4486 0R1745 4W6060 (1)
131-7937 7W4487 (4) 0R1742 4W6060 (1)
133-3896 7W4483 (4) 0R1741 7W4485 (1)
134-0944 7W4487 (4) 0R1743 7W4485 (1)
154-3198 7W4486 (5) 0R3420 7W4485 (1)
167-7489 7W4482 (2) 0R1744 7W4487 (1)
170-5181 7W4482 (2) 0R1745 7W4482 (1)
170-5183 7W5182 (2) 0R3536 7W4482 (1)
170-5187 7W4486 (1) 0R8791 7W4482 (1)
171-4093 7W4487 (2) 0R9797 7W4482 (1)
4W7011 7W4485 (1) 0R1749 7W4482 (1)
4W7012 4W6060 (1) 0R3093 7W4485 (1)
4W7013 4W6060 (1) 0R1746 7W4487 (1)
4W7014 4W6060 (1) 0R8784 7W4487 (1)
4W7015 4W6060 (1) 0R8785 7W4487 (1)
4W7016 7W4485 (1) 0R1747 7W4487 (1)
4W7016 7W4485 (1) 0R1748 7W4487 (1)

April 2010 CATERPILLAR NEW SCROLL 4

Section 7

NEW SCROLL FUEL PUMPS

7000 Series Injectors

Injector Assembly Compression Washer VOP Injector Assembly Compression Washer VOP
4W7016 7W4485 (1) 0R4124 7W4482 (1)
4W7017 7W4487 (1) 0R3586 7W4487 (2)
4W7018 7W4482 (1) 0R3587 7W4487 (2)
4W7019 7W4482 (1) 0R3588 7W4487 (2)
4W7020 7W4482 (1) 0R3589 7W4487 (2)
4W7021 7W4482 (1) 0R3590 7W4487 (2)
4W7022 7W4482 (1) 0R3591 7W4482 (2)
7W7023 7W8119 (1) 0R1740 8N4183 (1)
7W7024 7W4485 (1) 0R1739 8N4183 (1)
7W7026 7W4487 (1) 0R1739 7W4486 (1)
7W7030 7W4487 (1) 0R3419 4W3914 (1)
7W7031 7W4487 (1) 0R1740 7W4486 (1)
7W7032 7W4487 (1) 0R1744 8N4183 (1)
7W7033 7W4487 (1) 0R1744 7W4487 (1)

5 CATERPILLAR NEW SCROLL April 2010

 Section 7
NEW SCROLL FUEL PUMPS
7000 Series Injectors
REF PART DESCRIPTION QTY
The injector minor repair kits
listed below contain the parts
necessary to repair six 7000
Series Injectors. The difference in
the kits is the compression
washer.

DPE73306 INJECTOR REPAIR KIT

- DPE7001 O-RING, INLET ADAPTER 6
- DPE7002 O-RING, STEM 6
- 114-3364 WASHER 6
- 1H1023 O-RING 6
- 9L9098 CARBON DAM 6
- 7W4486 COMPRESSION WASHER 6
- 9X2836 BLEED SCREW 6

DPE73306A INJECTOR REPAIR KIT

- DPE7001 O-RING, INLET ADAPTER 6
- DPE7002 O-RING, STEM 6
- 114-3364 WASHER 6
- 1H1023 O-RING 6
- 9L9098 CARBON DAM 6
- 7W4485 COMPRESSION WASHER 6
- 9X2836 BLEED SCREW 6

DPE73306B INJECTOR REPAIR KIT

- DPE7001 O-RING, INLET ADAPTER 6
- DPE7002 O-RING, STEM 6
- 114-3364 WASHER 6
- 1H1023 O-RING 6
- 9L9098 CARBON DAM 6
- 7W4482 COMPRESSION WASHER 6
- 9X2836 BLEED SCREW 6

April 2010 CATERPILLAR NEW SCROLL 6

 An Employee Owned Company

105 East Parr Boulevard, Reno, NV 89512 USA

Telephone: (775) 329-7511  Fax: (775) 329-9740
7 7 www.dipaco.com  www.dtechproducts.com
CATERPILLAR NEW SCROLL April 2010