| Item | Part No. | Part Name | Qty | Serial No. |
| 20S-30-00120 | IDLER ASS'Y | 18001-26422 | ||
| 1 | 20S-30-72511 | IDLER | 18001-26422 | |
| 2 | 20T-30-11190 | BUSHING | 18001-26422 | |
| 140-30-00141 | FLOATING SEAL ASS'Y | 18001-26422 | ||
| 3 | \6\ | RING,SEAL | 18001-26422 | |
| 4 | \6\ | O-RING | 18001-26422 | |
| 5 | 20S-30-72120 | SUPPORT | 18001-26422 | |
| 6 | 20R-30-11240 | SHAFT | 18001-26422 | |
| 7 | 07000-03028 | O-RING | 18001-26422 | |
| 8 | 01090-51045 | BOLT | 18001-26422 | |
| 9 | 01643-31032 | WASHER | 18001-26422 |