| Item | Part No. | Part Name | Qty | Serial No. |
| 20D-57-00010 | OPERATOR'S SEAT A. | 1003- | ||
| 20D-57-00020 | SEAT ASS'Y | 1003- | ||
| 1 | 205-57-62121 | CUSHION,BACK | 1003- | |
| 2 | 205-57-62111 | CUSHION,SEAT | 1003- | |
| 3 | 155-57-12181 | LEVER | 1003- | |
| 4 | 01010-31020 | BOLT | 1003- | |
| 5 | 01602-01030 | WASHER,SPRING | 1003- | |
| 6 | 203-57-21330 | SPACER | 1003- | |
| 7 | 01010-31020 | BOLT | 1003- | |
| 8 | 01602-01030 | WASHER,SPRING | 1003- | |
| 9 | 20D-57-12140 | CHAIN | 1003- | |
| 10 | 01010-31020 | BOLT | 1003- | |
| 11 | 01602-01030 | WASHER,SPRING | 1003- | |
| 12 | 20D-57-12120 | SUSPENSION ASS'Y | 1003- | |
| 13 | 01580-01210 | NUT | 1003- | |
| 14 | 01643-31232 | WASHER | 1003- | |
| 15 | 20D-57-12130 | BRACKET,L.H. | 1003- | |
| 16 | 01010-31230 | BOLT | 1003- | |
| 17 | 01643-31232 | WASHER | 1003- |