| Item | Part No. | Part Name | Qty | Serial No. |
| 21F-57-11400 | SEAT ASS'Y | 1766- | ||
| 1 | 21F-57-11410 | FRAME | 1766- | |
| 2 | 203-57-51570 | ADJUSTER | 1766- | |
| 3 | 203-57-51562 | ADJUSTER | 1766- | |
| 4 | 01010-50820 | BOLT | 1766- | |
| 5 | 01602-20825 | WASHER,SPRING | 1766- | |
| 6 | 01580-10806 | NUT | 1766- | |
| 7 | 22W-43-17330 | WASHER | 1766- |