| Item | Part No. | Part Name | Qty | Serial No. |
| 20R-57-11201 | SEAT ASS'Y | 3501- | ||
| 1 | 20R-57-21110 | SEAT | 3501- | |
| 2 | 20R-57-21120 | SEAT,BACK | 3501- | |
| 3 | 20R-57-21130 | BRACKET | 3501- | |
| 4 | 01010-30612 | BOLT | 3501- | |
| 5 | 01602-00619 | WASHER,SPRING | 3501- | |
| 6 | 20N-57-13110 | BRACKET | 3501- | |
| 7 | 20R-57-11170 | PIN | 3501- | |
| 8 | 04052-01038 | PIN,SNAP | 3501- | |
| 9 | 01010-31230 | BOLT | 3501- | |
| 10 | 01602-01236 | WASHER,SPRING | 3501- | |
| 11 | 20N-57-12110 | BRACKET | 3501- | |
| 12 | 01010-31025 | BOLT | 3501- | |
| 13 | 01602-01030 | WASHER,SPRING | 3501- | |
| 14 | 01643-31032 | WASHER | 3501- | |
| 15 | 201-57-11161 | CUSHION | 3501- | |
| 16 | 01010-30840 | BOLT | 3501- | |
| 17 | 01602-00825 | WASHER,SPRING | 3501- | |
| 18 | 01643-30823 | WASHER | 3501-. |