| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | UC4020255248 | PISTON | H50001- | |
| 1A | UC1020088766 | PISTON | H50001- | |
| 2 | UC1704492391 | ROD | H50001- | |
| 3 | UC1720155085 | RING | H50001- | |
| 3A | UC1720134932 | RING | H50001- | |
| 3B | UC1720155094 | RING | H50001- | |
| 3C | UC1720155104 | RING | H50001- | |
| 3D | UC1720155113 | RING | H50001- | |
| 3E | UC1720155122 | RING | H50001- | |
| 3F | UC1720155149 | RING | H50001- | |
| 3G | UC1720155131 | RING | H50001- | |
| 4 | UC1726004891 | RING | H50001- | |
| 5 | UC1720201014 | COLLAR | H50001- | |
| 6 | UC1704328869 | SPRING | H50001- | |
| 7 | UC1704328988 | SPRING | H50001- | |
| 8 | UC1700834076 | WASHER | H50001- | |
| 9 | UC1300030001 | O-RING | H50001- | |
| 10 | UC1704492483 | COLLAR | H50001- | |
| 11 | UC1704328859 | SPRING | H50001- |