| Item | Part No. | Part Name | Qty | Serial No. |
| 20R-30-00010 | FRONT IDLER ASS'Y | 4501- | ||
| 1 | 20R-30-11360 | IDLER | 4501- | |
| 2 | 20R-30-11230 | SUPPORT,IDLER | 4501- | |
| 3 | 10E-30-12150 | BUSHING | 4501- | |
| 4 | 20R-30-11240 | SHAFT,IDLER | 4501- | |
| 5 | 07000-03028 | O-RING | 4501- | |
| 6 | 10E-30-12140 | COLLAR | 4501- | |
| 140-30-00040 | FLOATING SEAL ASS'Y | 4501- | ||
| 7 | 140-30-00400 | SEAL RING ASS'Y | 4501- | |
| \6\ | RING,SEAL | 4501- | ||
| 8 | 140-30-00410 | O-RING ASS'Y | 4501- | |
| \6\ | O-RING | 4501- | ||
| 9 | 01090-31045 | BOLT | 4501- | |
| 10 | 01602-01030 | WASHER,SPRING | 4501- |