| Item | Part No. | Part Name | Qty | Serial No. |
| 20T-63-02241 | BOOM CYLINDER ASS'Y | 18001- | ||
| 1 | 20T-63-57141 | CYLINDER | 18001- | |
| 2 | 07144-10505 | BUSHING | 18001- | |
| 3 | 07145-00050 | SEAL,DUST (K1) | 18001- | |
| 4 | 07020-00000 | FITTING,GREASE | 18001- | |
| 5 | 707-29-90150 | HEAD,CYLINDER | 18001- | |
| 6 | 07177-05530 | BUSHING | 18001- | |
| 7 | 707-51-55211 | PACKING,ROD (K1) | 18001- | |
| 8 | 707-56-55510 | SEAL,DUST (K1) | 18001- | |
| 9 | 07179-12069 | RING,SNAP | 18001- | |
| 10 | 07000-12085 | O-RING (K1) | 18001- | |
| 11 | 07146-02086 | RING,BACK-UP (K1) | 18001- | |
| 12 | 707-35-52690 | RING,BACK-UP (K1) | 18001- | |
| 13 | 07000-02090 | O-RING (K1) | 18001- | |
| 14 | 20T-63-57121 | ROD,PISTON | 18001- | |
| 15 | 07143-10505 | BUSHING | 18001- | |
| 16 | 07145-00050 | SEAL,DUST (K1) | 18001- | |
| 17 | 707-71-60540 | PLUNGER | 18001- | |
| 18 | 707-36-90260 | PISTON | 18001- | |
| 19 | 707-44-90180 | RING,PISTON (K1) | 18001- | |
| 20 | 07156-00912 | RING,WEAR (K1) | 18001- | |
| 21 | 01580-03629 | NUT | 18001- | |
| 22 | 20T-63-58170 | TUBE | 18001- | |
| 23 | 20T-63-58180 | TUBE | 18001- | |
| 24 | 01010-51020 | BOLT | 18001- | |
| 25 | 01643-31032 | WASHER | 18001- |