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Williamsport, PA. 17701 U.S.A.
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SERVICE
Fax. 570-327-7101
www.lycoming.textron.com
INSTRUCTION
DATE: March 10, 2006 Service Instruction No.1060J
(Supersedes Service Instruction No. 1060H)
SUBJECT: Push Rod Identification
MODELS AFFECTED: All Lycoming aircraft engines.
TIME OF COMPLIANCE: Anytime push rod replacement is necessary.
The following table is provided to simplify the identification and selection of push rods. Individual push
rod assemblies are listed by part number together with the approximate length of the push rod.
CAUTION
HEAVY WALL PUSH RODS MAY BE USED INDIVIDUALLY AS ALTERNATES TO
STANDARD WALL PUSH RODS OF COMPARABLE LENGTHS. DO NOT USE
STANDARD WALL PUSH RODS WHERE THE HEAVY WALL RODS ARE
SPECIFIED.
NOTE
Old part numbers may be used interchangeably with equivalent new part number (except on
O-235 engines, refer to latest revision of Service Instruction No. 1480).
STANDARD WALL TABLE I FLAT TAPPETS
PUSH ROD SUPERSEDED APPROXIMATE
P/N PUSH ROD P/N LENGTH ENGINE MODELS*
15F19957-11 73411 11.882 (Intake and Exhaust)
15F19957-12 73412 11.909 O-290-D2; O-320; IO-320;
15F19957-13 73413 11.936 AIO-320; LIO-320
15F19957-14 73414 11.963
15F19957-15 73415 11.990
15F19957-17 73417 12.033 (Intake and Exhaust)
15F19957-18 73418 12.060 O-340
15F19957-19 73419 12.087
15F19957-20 73420 12.114
15F19957-34 73434 12.483 (Intake and Exhaust)
15F19957-35 73435 12.510 O-360; LO-360; IO-360-B, -E, -F,
15F19957-36 73436 12.537 -L; HO-360-C1A; HIO-360-B,-G;
15F19957-37 73437 12.564 VO, IVO-360; GO-435; VO-435;
TVO-435; GO, GSO, IGSO-480;
O-540-A, -B, -E,-F, -G, -H, -J, -L;
IO-540-C,-D,-J,-N,-R,-T,-W,-AB;
AEIO-540-D; TIO-540-C, -E, -G,
-H, -AA, -AB, -AF, -AG
Page 1 of 5
2006 by Lycoming All Rights Reserved
Service Instruction No. 1060J
STANDARD WALL TABLE I FLAT TAPPETS (CONT.)
PUSH ROD SUPERSEDED APPROXIMATE
P/N PUSH ROD P/N LENGTH ENGINE MODELS*
15F19957-45 73445 12.777 (Exhaust Only)
15F19957-46 73446 12.804 IO-540-B, -E, -M,-U; TIO-540-A,
15F19957-47 73447 12.831 -F, -J, -N, -R, -S; LTIO-540-F, -J,
15F19957-48 73448 12.858 -N, -R; IO-720-B, -C
15F19957-55 73455 13.034 (Intake Only)
15F19957-56 73456 13.061 IO-540-B,-E, -M, -U; TIO-540-A,
15F19957-57 73457 13.088 -F, -J, -N, -R, -S; LTIO-540-F, -J,
15F19957-58 73458 13.115 -N, -R; IO-720-B, -C
STANDARD WALL TABLE II FLAT TAPPETS
PUSH ROD SUPERSEDED APPROXIMATE
P/N PUSH ROD P/N LENGTH ENGINE MODELS*
15F19957-55 73455 13.034 (Intake and Exhaust)
15F19957-56 73456 13.061 IO-360-A,-C; AIO-360; HIO-
15F19957-57 73457 13.088 360-A, -C, -E; LIO-360-C; TIO-
15F19957-58 73458 13.115 360; IO-540-A, -G, -K, -L, -P, -S,
-AA; HIO-540-A; TIO-540-U,
-AE, -AH; LTIO-540-U; IO-720-
A, -D
15F19957-62 73462 13.225 (Intake and Exhaust)
15F19957-63 73463 13.252 TO-360-C, -F; TIO-360-C1A6D
15F19957-64 73464 13.279
15F19957-63 73463 13.252 (Intake and Exhaust)
15F19957-64 73464 13.279 IO-540-AC; TIO-540-AJ, -V, -W;
15F19957-65 73465 13.306 LTIO-540-V,-W
15F19957-66 73466 13.333
15F19957-67 73467 13.360
15F19957-68 73468 13.387
LW-15315 ------- 13.410 (Intake and Exhaust)
O-320-H
LW-15324 ------- 13.960 (Intake and Exhaust)
O-360-E; LO-360-E; TO, LTO-
360-E
STANDARD WALL TABLE III ROLLER TAPPETS
PUSH ROD SUPERSEDED APPROXIMATE
P/N PUSH ROD P/N LENGTH ENGINE MODELS*
15F19957-8 ------- 11.801 (Intake and Exhaust)
15F19957-9 ------- 11.828 O-320; IO-320; LIO-320
15F19957-10 ------- 11.855
15F19957-11 ------- 11.882
15F19957-12 ------- 11.909
Page 2 of 5
Service Instruction No. 1060J
STANDARD WALL TABLE III ROLLER TAPPETS (CONT.)
PUSH ROD SUPERSEDED APPROXIMATE
P/N PUSH ROD P/N LENGTH ENGINE MODELS*
15F19957-28 ------- 12.368 (Intake and Exhaust)
15F19957-29 ------- 12.391 O-360; LO-360; IO-360-B, -E, -F,
15F19957-30 ------- 12.414 -L, -M; HO-360-C1A; HIO-360-
15F19957-31 ------- 12.437 G; O-540-A, -B,-E, -F, -G,- H, J,
15F19957-32 ------- 12.459 -L; IO-540-A, C, -D, -J, -N, -R,
15F19957-33 ------- 12.482 -T, -W, -AB; AEIO-540-D; TIO-
15F19957-34 ------- 12.492 540-A, C, -E, -G, -H, -AA, -AB,
-AF,-AG
15F19957-42 ------- 12.696 (Exhaust Only)
15F19957-43 ------- 12.723 IO-540-B, -E, -M, -U; TIO-540-
15F19957-44 ------- 12.750 A, -F, -J, -N, -R, -S; LTIO-540-F,
15F19957-45 ------- 12.777 -J, -N, -R
15F19957-46 ------- 12.804
15F19957-47 ------- 12.831
15F19957-48 ------- 12.858
15F21362-8 ------- 12.696
15F21362-9 ------- 12.723
15F21362-10 ------- 12.750
15F21362-11 ------- 12.777
15F21362-12 ------- 12.804
15F21362-13 ------- 12.831
15F21362-14 ------- 12.858
15F19957-52 ------- 12.953 (Intake Only)
15F19957-53 ------- 12.980 IO-540-B, -E, -M, -U; TIO-540-
15F19957-54 ------- 13.007 A, -F, -J, -N, -R, -S; LTIO-540-F,
15F19957-55 ------- 13.034 -J, -N, -R
15F19957-56 ------- 13.061
15F19957-57 ------- 13.088
15F19957-58 ------- 13.115
15F21362-18 ------- 12.953
15F21362-19 ------- 12.980
15F21362-20 ------- 13.007
15F21362-21 ------- 13.034
15F21362-22 ------- 13.061
15F21362-23 ------- 13.088
15F21362-24 ------- 13.115
Page 3 of 5
Service Instruction No. 1060J
STANDARD WALL TABLE IV ROLLER TAPPETS
PUSH ROD SUPERSEDED APPROXIMATE
P/N PUSH ROD P/N LENGTH ENGINE MODELS*
15F19957-52 ------- 12.953 (Intake and Exhaust)
15F19957-53 ------- 12.980 IO-360-A, -C; HIO-360-C; LIO-
15F19957-54 ------- 13.007 360-C; IO-540-A, -G, -K. -L, -P,
15F19957-55 ------- 13.034 -S, -AA; TIO-540-U, -AE, -AH;
15F19957-56 ------- 13.061 LTIO-540-U
15F19957-57 ------- 13.088
15F19957-58 ------- 13.115
15F21362-18 ------- 12.953
15F21362-19 ------- 12.980
15F21362-20 ------- 13.007
15D21362-21 ------- 13.034
15F21362-22 ------- 13.061
15F21362-23 ------- 13.088
15F21362-24 ------- 13.115
15F19957-59 ------- 13.144 (Intake and Exhaust)
15F19957-60 ------- 13.171 IO-540-AC; TIO-540-AJ,-V,-W;
15F19957-61 ------- 13.198 LTIO-540-V, -W
15F19957-62 ------- 13.225
15F19957-63 ------- 13.252
15F19957-64 ------- 13.279
15F19957-65 ------- 13.306
15F19957-66 ------- 13.333
15F19957-67 ------- 13.360
15F19957-68 ------- 13.387
HEAVY WALL TABLE I FLAT TAPPETS
PUSH ROD SUPERSEDED APPROXIMATE
P/N PUSH ROD P/N LENGTH ENGINE MODELS*
76180 -------- 13.963 (Intake and Exhaust)
76181 ------- 14.000 TIO-541-E; TIGO-541
76182 ------- 14.037
76183 ------- 14.074
15F21362-11 73545 12.777 (Exhaust Only)
15F21362-12 73546 12.804 IGO-540-B; IGSO-540-B
15F21362-13 73547 12.831
15F21362-14 73548 12.858
15F21362-21 73555 13.034 (Intake Only)
15F21362-22 73556 13.061 IGO-540-G; IGSO-540-B
15F21362-23 73557 13.088
15F21362-24 73558 13.115
Page 4 of 5
Service Instruction No. 1060J
HEAVY WALL TABLE II FLAT TAPPETS
PUSH ROD SUPERSEDED APPROXIMATE
P/N PUSH ROD P/N LENGTH ENGINE MODELS*
15F21362-19 73553 12.980 (Intake and Exhaust)
15F21362-20 73554 13.007 HIO-360-D, -F
15F21362-21 73555 13.034
15F21362-22 73556 13.061
15F21362-23 73557 13.088
15F21362-24 73558 13.115
15F21362-21 73555 13.034 (Intake and Exhaust)
15F21362-22 73556 13.061 TIO-540-AE, -AH; VO, TVO,
15F21362-23 73557 13.088 TIVO-540; IGO-540-A; IGSO-
15F21362-24 73558 13.115 540-A
15F22200 73806** 11.558 (Intake and Exhaust) O-235
62156 11.933 (Intake and Exhaust) O-290
HEAVY WALL TABLE III ROLLER TAPPETS
PUSH ROD SUPERSEDED APPROXIMATE
P/N PUSH ROD P/N LENGTH ENGINE MODELS*
15F19957-52 ------- 12.953 (Intake and Exhaust)
15F19957-53 ------- 12.980 TIO-540-AE, -AH
15F19957-54 ------- 13.007
15F19957-55 ------- 13.034
15F19957-56 ------- 13.061
15F19957-57 ------- 13.088
15F19957-58 ------- 13.115
15F21362-18 ------- 12.953
15F21362-19 ------- 12.980
15F21362-20 ------- 13.007
15F21362-21 ------- 13.034
15F21362-22 ------- 13.061
15F21362-23 ------- 13.088
15F21362-24 ------- 13.115
* AEIO-320, -360 and 540 series use same push rods as their comparable IO models.
**See latest revision of Service Bulletin No. 453.
Do not reuse these part numbers at overhaul. Refer to latest revision of Service Bulletin No. 240.
P/N 73806 push rod is not longer available from Lycoming Engines. Refer to latest revision of Service
Instruction No. 1480.
NOTE: Revision J adds push rods for roller tappets.
Page 5 of 5
