| Item | Part No. | Part Name | Qty | Serial No. |
| 20Y-30-00321 | FRONT IDLER ASS'Y | 40139- | ||
| 20Y-30-00320 | FRONT IDLER ASS'Y | 40001-40138 | ||
| 1 | 20Y-30-33211 | IDLER | 40139- | |
| 20Y-30-33210 | IDLER | 40001-40138 | ||
| 2 | 207-30-56140 | BUSHING | 40001- | |
| 3 | 20Y-30-13130 | SHAFT | 40001- | |
| 4 | 07052-31624 | PLUG | 40001- | |
| 5 | 07000-12060 | O-RING | 40001- | |
| 20Y-30-00100 | FLOATING SEAL ASS'Y | 40001- | ||
| 6 | \6\ | RING | 40001- | |
| 7 | \6\ | O-RING | 40001- | |
| 8 | 20Y-30-13150 | SUPPORT | 40001- | |
| 9 | 205-30-76190 | PIN | 40001- |