| Item | Part No. | Part Name | Qty | Serial No. |
| 20D-57-00032 | OPERATOR'S SEAT A. | 1604-2300 | ||
| 20D-57-00041 | SEAT ASS'Y | 1601-2300 | ||
| 1 | 205-57-72331 | CUSHION,BACK | 1601-2300 | |
| 2 | 205-57-72411 | REST | 1601-2300 | |
| 3 | 20D-57-41120 | CUSHION | 1601-2300 | |
| 4 | 20G-57-11210 | LEVER | 1601-2300 | |
| 5 | 203-57-21330 | SPACER | 1601-2300 | |
| 6 | 01010-51020 | BOLT | 1601-2300 | |
| 7 | 01602-21030 | WASHER,SPRING | 1601-2300 | |
| 8 | 20D-57-12120 | SUSPENSION ASS'Y | 1604-2300 | |
| 9 | 01010-51020 | BOLT | 1601-2300 | |
| 10 | 01602-21030 | WASHER,SPRING | 1601-2300 | |
| 11 | 20D-57-4111 | BRACKET | 1601-2300 | |
| 12 | 01580-11210 | NUT | 1601-2300 | |
| 13 | 01643-31232 | WASHER | 1601-2300 | |
| 14 | 01010-51225 | BOLT | 1862-2300 | |
| 01010-51230 | BOLT | 1601-1861 | ||
| 15 | 01643-31232 | WASHER | 1601-2300 |