| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 124-12-51141 | DAMPER DISC ASS'Y | B20001- | |
| 2 | 124-12-51110 | COVER | B20001- | |
| 3 | 124-12-51131 | SHAFT | B20012- | |
| 124-12-51130 | SHAFT | B20001-B20011 | ||
| 4 | 04064-04518 | RING | B20001- | |
| 5 | 04065-08530 | RING | B20001- | |
| 6 | 06000-06209 | BEARING | B20001- | |
| 7 | 07012-10065 | SEAL | B20001- | |
| 8 | 07044-12412 | PLUG | B20001- | |
| 9 | 07002-32434 | O-RING | B20001- | |
| 10 | 01010-81035 | BOLT | B20001- | |
| 11 | 01643-31032 | WASHER | B20001- | |
| 12 | 203-01-51120 | PIN | B20001- | |
| 13 | 23S-12-11330 | PLATE | B20001- | |
| 14 | 06000-06207 | BEARING | B20001- | |
| 15 | 07046-15520 | PLUG | B20001- | |
| 16 | 124-12-51121 | WEIGHT | B20001-B20500 | |
| 17 | 01010-81025 | BOLT | B20501- | |
| 01010-81045 | BOLT | B20001-B20500 | ||
| 18 | 01643-31032 | WASHER | B20001- | |
| 19 | 12F-14-11290 | YOKE | B20001- |