| Item | Part No. | Part Name | Qty | Serial No. |
| 20Y-57-31400 | SEAT ASS'Y | 20001- | ||
| AS189985 | UPPER ASS'Y | 20001- | ||
| 1 | AS189988 | BACK COVER KIT | 20001- | |
| 2 | AS189989 | SEAT COVER KIT | 20001- | |
| 3 | AS160430 | FRAME | 20001- | |
| 4 | AS160432 | SEAT | 20001- | |
| 5 | AS169317 | HEAD REST KIT | 20001- | |
| 6 | AS170691 | FRAME | 20001- | |
| 7 | AS186834 | ARMREST,L.H. | 20001- | |
| 7 | AS186835 | ARMREST,R.H. | 20001- | |
| 8 | AS186833 | HANDLE KIT | 20001- | |
| 9 | AS160122 | HI RISER SPRING KIT | 20001- | |
| 10 | AS186830 | HEIGHT RISER KIT | 20001- | |
| 11 | AS189401 | SUSPENSION COVER KIT | 20001- | |
| 12 | AS164968 | PLINTH KIT | 20001- | |
| 13 | AS189402 | ADJUSTMENT KIT | 20001- |