| Item | Part No. | Part Name | Qty | Serial No. |
| 20Y-57-31100 | SEAT ASS'Y | 20001- | ||
| AS186829 | SEAT | 20001- | ||
| 1 | AS182431 | SEAT | 20001- | |
| 2 | AS160430 | FRAME | 20001- | |
| 3 | AS182432 | SEAT | 20001- | |
| 4 | AS160432 | SEAT | 20001- | |
| 5 | AS182326 | REST | 20001- | |
| 6 | AS170691 | FRAME | 20001- | |
| 7 | AS162032 | CABLE KIT | 20001- | |
| 8 | AS186830 | HEIGHT RISER KIT | 20001- | |
| 9 | AS162056 | SPRING KIT | 20001- | |
| 10 | AS156718 | DAMPER ASS'Y | 20001- | |
| 11 | AS186831 | SUSPENSION ASS'Y | 20001- | |
| 12 | AS156717 | UP STOP/BUMP STOP K. | 20001- | |
| 13 | AS156737 | WEIGHT ADJUSTER KIT | 20001- | |
| 14 | AS156738 | BEARING KIT | 20001- | |
| 15 | AS186832 | COVER | 20001- | |
| 16 | AS186833 | HANDLE | 20001- | |
| 17 | AS186834 | ARM REST | 20001- | |
| 18 | AS186835 | ARM REST | 20001- | |
| 19 | AS186836 | RAIL | 20001- | |
| 20 | AS172287 | PLATE | 20001- |