| Item | Part No. | Part Name | Qty | Serial No. |
| 20N-63-66101 | CYLINDER ASS'Y,ARM | 4501- | ||
| 1 | 20N-63-66140 | CYLINDER | 4501- | |
| 2 | 07143-10304 | BUSHING | 4501- | |
| 3 | 07145-00035 | SEAL,DUST | 4501- | |
| 4 | 707-29-70010 | HEAD,CYLINDER | 4501- | |
| 5 | 07177-03525 | BUSHING | 4501- | |
| 6 | 707-51-35110 | PACKING,ROD | 4501- | |
| 7 | 707-57-35010 | RETAINER | 4501- | |
| 8 | 04065-05220 | RING,SNAP | 4501- | |
| 9 | 07000-12075 | O-RING | 4501- | |
| 10 | 07001-02075 | RING,BACK-UP | 4501- | |
| 11 | 175-63-75190 | SEAL,DUST | 4501- | |
| 12 | 07179-00054 | RING,SNAP | 4501- | |
| 13 | 707-45-70010 | WASHER | 4501- | |
| 14 | 20N-63-56120 | ROD,PISTON | 4501- | |
| 15 | 07143-10304 | BUSHING | 4501- | |
| 16 | 07145-00035 | SEAL,DUST | 4501- | |
| 17 | 10E-63-66280 | RETAINER | 4501- | |
| 18 | 10E-63-66170 | PISTON | 4501- | |
| 19 | 07155-00720 | RING,WEAR | 4501- | |
| 20 | 112-63-12462 | PACKING,PISTON | 4501- | |
| 21 | 07165-12729 | NUT,NYLON | 4501- | |
| 22 | 20N-63-66190 | ELBOW | 4501- | |
| 23 | 07002-12034 | O-RING | 4501- | |
| 24 | 20N-63-66170 | TUBE | 4501- | |
| 25 | 07283-21529 | CLIP | 4501- | |
| 26 | 01598-00809 | NUT | 4501- | |
| 27 | 01643-30823 | WASHER | 4501- |