| Item | Part No. | Part Name | Qty | Serial No. |
| 421-12-12092 | DAMPER ASS'Y | 20001- | ||
| 1 | 421-12-12741 | BODY,OUTER | 20001- | |
| 2 | 421-12-12730 | BODY,INNER | 20001- | |
| 3 | 07046-47020 | PLUG | 20001- | |
| 4 | 421-12-12270 | RUBBER | 20001- | |
| 5 | 421-12-12370 | RUBBER | 20001- | |
| 6 | 421-12-12762 | FLANGE | 20001- | |
| 7 | 421-12-12752 | FLANGE | 20001- | |
| 8 | 01010-31090 | BOLT | 20001- | |
| 9 | 01643-31032 | WASHER | 20001- | |
| 10 | 421-12-12220 | BEARING | 20001- | |
| 11 | 06040-06017 | BEARING | 20001- | |
| 12 | 04064-08530 | RING,SNAP | 20001- | |
| 13 | 421-12-12790 | COVER | 20001- | |
| 14 | 07012-00070 | SEAL,OIL | 20001- | |
| 15 | 07000-02125 | O-RING | 20001- | |
| 16 | 01010-31025 | BOLT | 20001- | |
| 17 | 421-12-12770 | SHAFT | 20001- | |
| 18 | 07030-01030 | BREATHER | 20001- | |
| 19 | 01010-31060 | BOLT | 20001- | |
| 20 | 01643-31032 | WASHER | 20001- | |
| 21 | 421-12-12783 | COVER | 20001- | |
| 22 | 421-12-12230 | PLATE | 20001- | |
| 23 | 421-12-12241 | SEAL | 20001- | |
| 24 | 01010-30816 | BOLT | 20001- | |
| 25 | 01643-30823 | WASHER | 20001- | |
| 26 | 01010-31020 | BOLT | 20001- | |
| 27 | 01643-31032 | WASHER | 20001- |