| Item | Part No. | Part Name | Qty | Serial No. |
| 176-30-00133 | FRONT IDLER ASS | 21739- | ||
| \0\176-30-00132 | FRONT IDLER ASS'Y,FRONT | 15686-21738 | ||
| 1 | 175-30-23114 | IDLER | 15686- | |
| 2 | 175-30-23121 | SHAFT | 15686- | |
| 3 | 07052-31624 | PLUG | 15686- | |
| 4 | 176-30-00080 | BUSHING ASS'Y | 15686- | |
| 5 | 176-30-16150 | PIN,DOWEL | 15686- | |
| 6 | 07000-02130 | O-RING | 15686- | |
| 6 | 175-30-00701 | FLOATING SEAL ASS'Y | 21739- | |
| \0\175-30-00700 | FLOATING SEAL ASS'Y | 15686-21738 | ||
| 175-30-00691 | SEAL RING ASS'Y | 21739- | ||
| \0\175-30-00690 | SEAL RING ASS'Y | 15686-21738 | ||
| 7 | \6\ | RING | 21739- | |
| \6\ | RING | 15686-21738 | ||
| 175-30-00580 | O-RING ASS'Y | 15686- | ||
| 8 | \6\ | O-RING | 15686- | |
| 9 | 07000-03068 | O-RING | 15686- | |
| 10 | 01010-81235 | BOLT | 15686- | |
| 11 | 01643-31232 | WASHER | 21739- | |
| \0\01602-01236 | WASHER,SPRING | 15686-21738 | ||
| 175-30-33273 | GUIDE ASS'Y | 23457- | ||
| 175-30-33272 | GUIDE ASS'Y | 21739-23456 | ||
| 175-30-33271 | GUIDE ASS'Y | 15686-21738 | ||
| 12 | \6\ | GUIDE | 21739- | |
| \6\ | GUIDE | 15686-21738 | ||
| 13 | 175-30-33290 | PLATE (WELDED) | 21739- | |
| 170-30-13343 | PLATE (WELDED) | 15686-21738 | ||
| 14 | 04020-01228 | PIN,DOWEL (WELDED) | 15686- | |
| 15 | 176-30-43111 | SUPPORT,L.H. | 15686- | |
| 16 | 176-30-43121 | SUPPORT,R.H. | 15686- | |
| 17 | 175-30-23172 | BOLT | 15686- | |
| 18 | 175-30-23180 | NUT | 15686- | |
| 19 | 01602-01648 | WASHER,SPRING | 15686-21738 | |
| 20 | 01643-31645 | WASHER | 21739- | |
| \0\01640-01626 | WASHER | 15686-21738 | ||
| 175-30-05050 | SHIM KIT | 15686- | ||
| 21 | \6\ | SHIM¤ 1.0MM | 15686- | |
| 22 | \6\ | SHIM¤ 2.0MM | 15686- | |
| 175-30-05060 | SHIM KIT | 15686- | ||
| 23 | \6\ | SHIM¤ 1.0MM | 15686- | |
| 24 | \6\ | SHIM¤ 2.0MM | 15686- | |
| 25 | 175-30-33460 | PLATE | 15686- | |
| 26 | 175-30-33492 | BOLT | 15686- | |
| 27 | 01643-32060 | WASHER | 21739- | |
| \0\01602-02060 | WASHER,SPRING | 15686-21738 | ||
| 28 | 175-30-33214 | PLATE | 15686- | |
| 29 | 175-30-05070 | SHIM KIT | 15686- | |
| \6\ | SHIM¤ 1.0MM | 15686- | ||
| \6\ | SHIM¤ 0.5MM | 15686- | ||
| 30 | 01011-32260 | BOLT | 15686- | |
| 31 | 01602-02268 | WASHER,SPRING | 15686- | |
| 32 | 175-30-33430 | SEAT | 15686- | |
| 33 | 175-30-33471 | COVER,L.H. | 15686-21738 | |
| 34 | 175-30-33481 | COVER,R.H. | 15686-21738 | |
| 35 | 01010-31635 | BOLT | 15686-21738 | |
| 36 | 01602-01648 | WASHER,SPRING | 15686-21738 | |
| 37 | 195-30-17960 | SEAT,SPRING | 15686- | |
| 38 | 155-30-13230 | SPRING | 15686- | |
| 39 | 175-30-24131 | SEAT,SPRING | 15686- |