| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 21W-30-12620 | YOKE | 28001- | |
| 2 | 21W-30-12610 | CYLINDER | 28001- | |
| 3 | 21W-30-12130 | PILOT | 28001- | |
| 4 | 201-30-52240 | SPRING,RECOIL | 28001- | |
| 5 | 21W-30-12630 | NUT | 28001- | |
| 6 | 201-30-52280 | SEAT | 28001- | |
| 7 | 21W-30-12640 | LOCK | 28001- | |
| 8 | 01010-50830 | BOLT | 28001- | |
| 9 | 01643-30823 | WASHER | 28001- | |
| 10 | 203-30-42260 | VALVE | 28001- | |
| 11 | 07020-00900 | FITTING,GREASE | 28001- | |
| 12 | 113-30-24161 | PISTON | 28001- | |
| 13 | 07155-00515 | RING,WEAR | 28001- | |
| 14 | 09370-00050 | U-PACKING | 28001- | |
| 15 | 04064-03515 | RING,SNAP | 28001- | |
| 16 | 07000-03050 | O-RING | 28001- | |
| 17 | 01010-51470 | BOLT | 28001- | |
| 18 | 01643-31445 | WASHER | 28001- |