| Item | Part No. | Part Name | Qty | Serial No. |
| 17A-57-22121 | SEAT ASS'Y | 31416- | ||
| 1 | AS163576 | FRAME ASS'Y | 31416- | |
| 2 | AS169769 | BACK COVER ASS'Y KIT | 31416- | |
| 3 | AS160167 | BACK FOAM KIT | 31416- | |
| 4 | AS159768 | SEAT COVER ASS'Y KIT | 31416- | |
| 5 | AS157154 | SEAT FOAM KIT | 31416- | |
| 6 | AS156714 | HEIGHT RISER KIT | 31416- | |
| 7 | AS156713 | HI RISER SPRING KIT | 31416- | |
| 8 | AS157157 | HI RISER LATCH KIT | 31416- | |
| 9 | AS157240 | SLIDE RAIL MOUNT KIT | 31416- | |
| 10 | AS156717 | UP STOP/BUMP STOP K. | 31416- | |
| 11 | AS157230 | SUSPENSION ASS'Y | 31416- | |
| 12 | AS163577 | SUSPENSION COVER KIT | 31416- | |
| 13 | AS157228 | DAMPER ASS'Y KIT | 31416- | |
| 14 | AS156737 | WEIGHT ADJUSTER KIT | 31416- |