| Item | Part No. | Part Name | Qty | Serial No. |
| 20B-57-21001 | OPERATOR'S SEAT A. | 1501- | ||
| 1 | 20B-57-21241 | CUSHION,SEAT | 1501- | |
| 2 | 205-57-62121 | CUSHION,BACK | 1501- | |
| 3 | 155-57-12181 | LEVER | 1501- | |
| 4 | 01010-31020 | BOLT | 1501- | |
| 5 | 01602-01030 | WASHER | 1501- | |
| 6 | 203-57-21330 | SPACER | 1501- | |
| 7 | 20B-57-22000 | SUSPENSION ASS'Y | 1501- | |
| 8 | 01010-31020 | BOLT | 1501- | |
| 9 | 01602-01030 | WASHER | 1501- | |
| 10 | 201-57-21130 | PLATE | 1501- | |
| 11 | 20B-57-21221 | PLATE | 1501- | |
| 12 | 201-57-21250 | CUSHION | 1501- | |
| 13 | 01010-30825 | BOLT | 1501- | |
| 14 | 01602-00825 | WASHER | 1501- | |
| 15 | 01643-30823 | WASHER | 1501- | |
| 16 | 20B-57-21211 | BRACKET | 1501- | |
| 17 | 01580-01210 | NUT | 1501- | |
| 18 | 01602-01236 | WASHER | 1501- | |
| 19 | 01010-31635 | BOLT | 1501- | |
| 20 | 01602-01648 | WASHER | 1501- |