| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 20Y-53-13113 | CUSHION | B31800- | |
| 2 | 20Y-53-13121 | CUSHION | B31800- | |
| 3 | 01580-12016 | NUT | B31800- | |
| 4 | 01643-32060 | WASHER | B31800- | |
| 5 | 20Y-53-13130 | SPACER | B31800- | |
| 6 | 01010-81240 | BOLT | B31800- | |
| 7 | 01643-31232 | WASHER | B31800- | |
| 8 | 20Y-53-13141 | PLATE | B31800- | |
| 9 | 01011-83065 | BOLT | B31800- | |
| 10 | 01643-33080 | WASHER | B31800- | |
| 11 | 20Y-53-13151 | LOCK | B31800- | |
| 12 | 01010-81235 | BOLT | B31800- | |
| 13 | 01643-31232 | WASHER | B31800- | |
| 14 | 198-43-15310 | COLLAR¤ 10MM | B31800- |