| Item | Part No. | Part Name | Qty | Serial No. |
| 21T-57-00010 | OPERATOR'S SEAT A. | 10001-10266 | ||
| 21T-57-71110 | SEAT ASS'Y | 10001-10266 | ||
| 1 | 21T-57-71120 | CUSHION | 10001-10266 | |
| 2 | 209-57-51120 | CUSHION,BACK | 10001-10266 | |
| 3 | 21T-57-71130 | HEAD | 10001-10266 | |
| 4 | 205-57-72420 | HOLDER | 10001-10266 | |
| 5 | 205-57-72430 | SPRING | 10001-10266 | |
| 6 | 20G-57-11210 | LEVER | 10001-10266 | |
| 7 | 01010-51020 | BOLT | 10001-10266 | |
| 8 | 01602-21030 | WASHER | 10001-10266 | |
| 9 | 203-57-21330 | SPACER | 10001-10266 | |
| 10 | 01010-51020 | BOLT | 10001-@ | |
| 11 | 01602-21030 | WASHER | 10001-@ | |
| 12 | 20G-57-11100 | SUSPENSION ASS'Y | 10001-@ | |
| 13 | 155-57-12320 | KNOB | 10001-@ | |
| 14 | 155-57-12310 | HANDLE ASS'Y | 10001-@ | |
| 15 | 155-57-12330 | DAMPER | 10001-@ | |
| 16 | 205-57-63520 | ADJUSTER | 10001-@ | |
| 17 | 01580-11210 | NUT | 10001-@ | |
| 18 | 01602-21236 | WASHER | 10001-@ | |
| 19 | 21N-57-11110 | BRACKET | 10001-@ | |
| 20 | 01580-11210 | NUT | 10001-@ | |
| 21 | 01643-31232 | WASHER | 10001-@ |