| Item | Part No. | Part Name | Qty | Serial No. |
| 154-15-00014 | TRANSMISSION ASS'Y | 20337- | ||
| 154-15-00024 | TRANSMISSION ASS'Y | 20337- | ||
| 1 | 154-15-21111 | CASE | 20337- | |
| 2 | 01010-51240 | BOLT | 20337- | |
| 3 | 01602-21236 | WASHER | 20337- | |
| 4 | 04020-01228 | PIN | 20337- | |
| 5 | 154-15-21121 | GASKET (KIT) | 20337- | |
| 6 | 04530-02438 | BOLT | 20337- | |
| 7 | 09608-05080 | PLATE¤ NAME | 20337- | |
| 8 | 04418-03060 | SCREW | 20337- | |
| 154-15-00332 | REAR CASE ASS'Y | 20337- | ||
| 9 | 154-15-23112 | CASE | 20337- | |
| 10 | 07042-00108 | PLUG | 20337- | |
| 11 | 154-15-23151 | CAGE | 20337- | |
| 12 | 01010-31230 | BOLT | 20337- | |
| 13 | 01602-01236 | WASHER | 20337- | |
| 14 | 06000-22210 | BEARING | 20337- | |
| 15 | 04065-09030 | RING | 20337- | |
| 16 | 154-15-13213 | GEAR | 20337- | |
| 17 | 175-15-49340 | BEARING | 20337- | |
| 18 | 175-15-43270 | BEARING | 20337- | |
| 19 | 154-15-13234 | GEAR | 20337- | |
| 20 | 154-15-23240 | SHAFT | 20337- | |
| 21 | 154-15-29120 | BEARING | 20337- | |
| 22 | 154-15-23360 | COVER | 20337- | |
| 23 | 154-15-23351 | CAGE | 20337- | |
| 24 | 01010-01250 | BOLT | 10337- | |
| 25 | 01602-01236 | WASHER | 20337- | |
| 26 | 154-15-23341 | SPACER | 20337- | |
| 27 | 154-15-29111 | BEARING | 20337- | |
| 28 | 155-15-13390 | HOLDER | 20337- | |
| 29 | 01010-31230 | BOLT | 20337- | |
| 30 | 04081-06012 | LOCK (KIT) | 20337- | |
| 31 | 154-15-00340 | SHIM ASS'Y | 20337- | |
| 154-15-23440 | SHIM | 20337- | ||
| 32 | 154-15-23450 | SHIM | 20337- | |
| 33 | 154-15-23460 | SHIM¤ 0.2MM | 20337- | |
| 34 | 154-15-23470 | SHIM¤ 0.2MM | 20337- | |
| 35 | 154-15-00350 | SHIM ASS'Y | 20337- | |
| 154-15-23440 | SHIM | 20337- | ||
| 36 | 154-15-23450 | SHIM | 20337- | |
| 37 | 154-15-23460 | SHIM¤ 0.2MM | 20337- | |
| 38 | 154-15-23470 | SHIM¤ 0.2MM | 20337- | |
| 39 | 154-15-23480 | SHIM¤ 1.0MM | 20337- | |
| 40 | 154-15-23490 | SHIM¤ 1.0MM | 20337- | |
| 155-15-00360 | VALVE ASS'Y | 20337- | ||
| 41 | 154-15-24110 | BODY | 20337- | |
| 42 | 175-15-14120 | SPRING | 20337- | |
| 43 | 175-15-14130 | SPOOL | 20337- | |
| 44 | 175-15-14140 | GUIDE | 20337- | |
| 45 | 175-15-14150 | COVER | 20337- | |
| 46 | 01010-50825 | BOLT | 20337- | |
| 47 | 01602-20825 | WASHER | 20337- | |
| 48 | 07000-03032 | O-RING (KIT) | 20337- | |
| 49 | 175-15-14161 | GASKET (KIT9 | 20337- | |
| 50 | 01010-51065 | BOLT | 20337- | |
| 51 | 01602-21030 | WASHER | 20337- | |
| 52 | 155-15-14170 | SLEEVE | 20337- | |
| 53 | 07000-03022 | O-RING (KIT) | 20337- | |
| 54 | 175-15-44180 | SLEEVE | 20337- | |
| 55 | 07000-02018 | O-RING (KIT) | 20337- |