| Item | Part No. | Part Name | Qty | Serial No. |
| 154-30-00771 | FRONT IDLER ASS'Y | 3689- | ||
| 1 | 154-30-43110 | SUPPORT,L.H. | 3689- | |
| 2 | 154-30-43120 | SUPPORT,R.H. | 3689- | |
| 154-30-43130 | GUIDE ASS'Y | 3689- | ||
| 3 | \6\ | GUIDE | 3689- | |
| 4 | 154-30-43150 | PLATE (WELDED) | 3689- | |
| 5 | 07000-12060 | O-RING | 3689- | |
| 6 | 154-30-12650 | BOLT | 3689- | |
| 7 | 175-30-23180 | NUT | 3689- | |
| 8 | 01643-31645 | WASHER | 3689- | |
| 9 | 154-30-12660 | BOLT | 3689- | |
| 10 | 01643-31645 | WASHER | 3689- | |
| 11 | 154-30-12670 | PLATE | 3689- | |
| 12 | \6\ | SHIM, 1.0MM | 3689- | |
| \6\ | SHIM, 2.0MM | 3689- | ||
| 13 | \6\ | SHIM, 1.0MM | 3689- | |
| \6\ | SHIM, 0.5MM | 3689- | ||
| 14 | 01011-82020 | BOLT | 3689- | |
| 15 | 01643-32060 | WASHER | 3689- | |
| 16 | 150-30-22118 | IDLER,FRONT | 3689- | |
| 17 | 154-30-23122 | SHAFT,IDLER | 3689- | |
| 18 | 07052-31624 | PLUG | 3689- | |
| 19 | 155-30-16202 | BUSHING ASS'Y | 3689- | |
| \6\ | BUSHING | 3689- | ||
| \6\ | BUSHING | 3689- | ||
| 20 | 170-30-91130 | PIN | 3689- | |
| 21 | 07000-12110 | O-RING | 3689- | |
| 22 | 01010-81235 | BOLT | 3689- | |
| 23 | 01602-21236 | WASHER | 3689- | |
| 154-30-00832 | FLOATING SEAL ASS'Y | 3689- | ||
| 24 | \6\ | SEAL | 3689- | |
| 25 | \6\ | O-RING | 3689- | |
| 26 | 195-30-17960 | PLATE | 3689- | |
| 27 | 155-30-13230 | SPRING | 3689- | |
| 28 | 175-30-24131 | SEAT | 3689- |