| Item | Part No. | Part Name | Qty | Serial No. |
| 20G-57-00010 | OPERATOR'S SEAT A. | 1001-1013 | ||
| 20G-57-00020 | SEAT ASS'Y | 1001-1013 | ||
| 1 | 20G-57-11120 | CUSHION | 1001-1013 | |
| 2 | 205-57-72330 | CUSHION,BACK | 1001-1013 | |
| 3 | 205-57-72410 | REST,HEAD | 1001-1013 | |
| 4 | 20G-57-11210 | LEVER | 1001-@ | |
| 5 | 01010-51020 | BOLT | 1001-@ | |
| 6 | 01602-21030 | WASHER,SPRING | 1001-@ | |
| 7 | 203-57-21330 | SPACER | 1001-@ | |
| 8 | 01010-51020 | BOLT | 1001-@ | |
| 9 | 01602-21030 | WASHER,SPRING | 1001-@ | |
| 10 | 20G-57-11100 | SUSPENSION ASS'Y | 1001-@ | |
| 11 | 155-57-12150 | ADJUSTER | 1001-@ | |
| 12 | 155-57-12310 | HANDLE ASS'Y | 1001-@ | |
| 13 | 155-57-12320 | KNOB | 1001-@ | |
| 14 | 155-57-12330 | DAMPER | 1001-@ | |
| 15 | 01580-11210 | NUT | 1001-@ | |
| 16 | 01602-21236 | WASHER,SPRING | 1001-@ | |
| 17 | 01010-51020 | BOLT | 1001-@ | |
| 18 | 01602-21030 | WASHER,SPRING | 1001-@ | |
| 19 | 20G-57-11111 | PLATE | 1014-@ | |
| 19 | \0\20G-57-11110 | PLATE | 1001-1013 | |
| 20 | 01580-11210 | NUT | 1001-@ | |
| 21 | 01643-31232 | WASHER | 1001-@ | |
| 22 | 01010-51230 | BOLT | 1001-@ | |
| 23 | 01643-31232 | WASHER | 1001-@ |