| Item | Part No. | Part Name | Qty | Serial No. |
| 421-40-42210 | WHEEL ASS'Y | 55393- | ||
| 421-40-42220 | WHEEL ASS'Y | 55393- | ||
| 1 | 421-40-42350 | WHEEL | 55393- | |
| 2 | 421-40-42310 | INSERT | 55393- | |
| 3 | 421-40-42320 | BOSS | 55393- | |
| 4 | 421-40-42330 | PLATE | 55393- | |
| 5 | 421-40-42340 | PLATE | 55393- | |
| 421-40-42360 | COVER | 55393- | ||
| 6 | \6\ | COVER | 55393- | |
| 7 | 421-40-42380 | SEAL | 55393- | |
| 8 | 421-40-42390 | SCREW | 55393- | |
| 9 | 421-40-42410 | KNOB | 55393- | |
| 10 | 421-40-42420 | CAP | 55393- | |
| 11 | 421-40-42430 | BUSHING | 55393- | |
| 12 | 421-40-42440 | BOLT | 55393- | |
| 13 | 421-40-42450 | NUT | 55393- | |
| 14 | 421-40-42460 | PIN | 55393- | |
| 15 | 421-40-42470 | WASHER | 55393- | |
| 16 | 421-40-42480 | SCREW | 55393- | |
| 421-40-42230 | PAD ASS'Y | 55393- | ||
| 17 | 421-40-42510 | PAD | 55393- | |
| 18 | 421-40-42520 | SPRING LOCK | 55393- | |
| 421-40-42240 | NEEDLE ASS'Y | 55393- | ||
| 19 | 421-40-42530 | NEEDLE | 55393- | |
| 20 | 421-40-42540 | SPRING | 55393- | |
| 21 | 421-40-12440 | NUT | 55001- | |
| 22 | 421-40-12450 | WASHER | 55001- |