| Item | Part No. | Part Name | Qty | Serial No. |
| 20Y-30-00030 | FRONT IDLER ASS'Y | 1201- | ||
| 1 | 20Y-30-13120 | IDLER | 1201- | |
| 2 | 207-30-56140 | BUSHING | 1201- | |
| 3 | 20Y-30-13130 | SHAFT | 1201- | |
| 4 | 07000-02060 | O-RING | 1201- | |
| 5 | 07052-31624 | PLUG | 1201- | |
| 20Y-30-00100 | FLOATING SEAL ASS'Y | 1201- | ||
| 6 | 20Y-30-00110 | SEAL RING ASS'Y | 1201- | |
| \6\ | RING,SEAL | 1201- | ||
| 7 | 20Y-30-00120 | O-RING ASS'Y | 1201- | |
| \6\ | O-RING | 1201- | ||
| 8 | 20Y-30-13150 | SUPPORT | 1201- | |
| 9 | 205-30-76190 | PIN | 1201- |