| Item | Part No. | Part Name | Qty | Serial No. |
| 14X-57-12001 | SEAT ASS'Y | B20001-B20286 | ||
| 1 | 14X-57-11120 | CUSHION | B20001-B20286 | |
| 14X-57-11280 | LEVER ASS'Y | B20001-B20286 | ||
| 2 | 14X-57-11150 | ADJUSTER | B20001-B20286 | |
| 3 | 14X-57-11160 | SUSPENSION ASS'Y | B20001-B20286 | |
| 4 | 14X-57-11251 | PLATE ASS'Y | B20001-B20286 | |
| 5 | 14X-57-12120 | LIFTER | B20001-B20286 | |
| 6 | 14X-57-12130 | SWIVEL | B20001-B20286 | |
| 7 | 01584-01210 | NUT | B20001-B20286 | |
| 8 | 01435-00820 | BOLT | B20001-B20286 | |
| 9 | 01584-00806 | NUT | B20001-B20286 | |
| 10 | 14X-57-12140 | BOOT | B20001-B20286 | |
| 11 | 14X-57-12150 | RETAINER | B20001-B20286 | |
| 12 | 01010-81230 | BOLT | B20001-B20286 | |
| 13 | 01643-31232 | WASHER | B20001-B20286 |