| Item | Part No. | Part Name | Qty | Serial No. |
| 20Y-30-00130 | TRACK ROLLER ASS'Y | 4877- | ||
| 20Y-30-00010 | TRACK ROLLER ASS'Y | 4479-4876 | ||
| 1 | 20Y-30-16112 | ROLLER,TRACK | 4877- | |
| 1 | 20Y-30-16111 | ROLLER,TRACK | 4479-4876 | |
| 2 | 20Y-30-16241 | BUSHING | 4877- | |
| 2 | 20Y-30-16240 | BUSHING | 4479-4876 | |
| 3 | 20Y-30-16130 | SHAFT | 4479- | |
| 4 | 205-30-76260 | O-RING | 3001- | |
| 20Y-30-00041 | FLOATING SEAL ASS'Y | 4877- | ||
| 20Y-30-00040 | FLOATING SEAL ASS'Y | 4479-4876 | ||
| 5 | \6\ | RING | 4877- | |
| 5 | \6\ | RING | 4479-4876 | |
| 6 | \6\ | O-RING | 4877- | |
| 6 | \6\ | O-RING | 4479-4876 | |
| 7 | 20Y-30-16310 | COLLAR | 4877- | |
| 7 | 20Y-30-16150 | COLLAR | 4479-4876 | |
| 8 | 2991-01-4160 | PLUG | 4479- | |
| 9 | 20Y-30-16320 | COLLAR | 4477- | |
| 9 | 20Y-30-16160 | COLLAR | 4479-4476 | |
| 10 | 20Y-30-16170 | PIN | 4479- | |
| 11 | 01010-51685 | BOLT | 4479- | |
| 12 | 01643-31645 | WASHER | 3001- |