| Item | Part No. | Part Name | Qty | Serial No. |
| 21A-63-02030 | CYLINDER ASS'Y | 12001- | ||
| 1 | 21A-63-76140 | CYLINDER | 12001- | |
| 2 | 21A-70-11230 | BUSHING | 12001- | |
| 3 | 21A-70-11240 | SEAL,DUST | 12001- | |
| 4 | 707-29-35020 | HEAD,CYLINDER | 12001- | |
| 5 | 707-52-10260 | BUSHING | 12001- | |
| 6 | 707-51-20090 | PACKING,ROD (K18) | 12001- | |
| 7 | 707-56-20590 | SEAL,DUST (K18) | 12001- | |
| 8 | 707-75-20050 | RING,SNAP | 12001- | |
| 9 | 07000-13030 | O-RING (K18) | 12001- | |
| 10 | 707-35-90300 | RING,BACK-UP (K18) | 12001- | |
| 11 | 707-34-36000 | O-RING (K18) | 12001- | |
| 12 | 21A-63-76120 | ROD,PISTON | 12001- | |
| 13 | 21A-70-11230 | BUSHING | 12001- | |
| 14 | 21A-70-11240 | SEAL,DUST | 12001- | |
| 15 | 707-36-35020 | PISTON | 12001- | |
| 16 | 707-44-35010 | RING,PISTON (K18) | 12001- | |
| 17 | 707-39-35010 | RING,WEAR (K18) | 12001- | |
| 18 | 01580-01411 | NUT | 12001- |