| Item | Part No. | Part Name | Qty | Serial No. |
| 21W-30-00021 | TRACK ROLLER ASS'Y | 28001- | ||
| 1 | 21W-30-14510 | ROLLER,TRACK | 28001- | |
| 2 | 21W-30-14540 | BUSHING | 28001- | |
| 3 | 21W-30-14520 | COLLAR | 28001- | |
| 4 | 21W-30-14530 | COLLAR | 28001- | |
| 5 | 21W-30-14550 | SHAFT | 28001- | |
| 6 | 201-30-54150 | PIN | 28001- | |
| 141-30-00616 | FLOATING SEAL ASS'Y | 28001- | ||
| 7 | \6\ | RING,SEAL | 28001- | |
| 8 | \6\ | O-RING | 28001- | |
| 9 | 07000-03038 | O-RING | 28001- | |
| 10 | 07043-50108 | PLUG | 28001- | |
| 11 | 01010-51465 | BOLT | 28001- | |
| 12 | 01643-31445 | WASHER | 28001- |