| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 721-00-70591 | CYLINDER ASS'Y,BOOM SWING | 13091- | |
| 1 | (721-00-70590) | CYLINDER ASS'Y,BOOM SWING | 10001-13090 | |
| 2 | 22K-70-11490 | PIN | 10001- | |
| 3 | 04082-00212 | LOCK | 10001- | |
| 4 | 01010-81225 | BOLT | 10001- | |
| 5 | 01643-31232 | WASHER | 10001- | |
| 6 | 21U-70-11740 | SPACER, 1.0MM | 10001- | |
| 7 | 07235-10210 | ELBOW | 10001- | |
| 8 | 07002-11423 | O-RING | 10001- |