| Item | Part No. | Part Name | Qty | Serial No. |
| 17A-57-21112 | OPERATOR'S SEAT A. | 50001-50200 | ||
| 1 | (17A-57-21122) | SEAT ASS'Y | 50001-50200 | |
| 2 | (17A-57-21132) | TURN TABLE ASS'Y | 50001-50200 | |
| 3 | 17A-57-21170 | HEAD REST | 50001-50200 | |
| 4 | 01010-81030 | BOLT | 50001-50200 | |
| 5 | 01643-31032 | WASHER | 50001-50200 | |
| 6 | 17A-57-11231 | COVER | 50001-50200 | |
| 7 | 17A-57-11221 | SEAL | 50001-50200 | |
| 8 | 01010-81230 | BOLT | 50001-50200 | |
| 9 | 01643-31232 | WASHER | 50001-50200 |