| Item | Part No. | Part Name | Qty | Serial No. |
| | Main Piston Pump, Inner Parts, (1/12) (#50001-50173) | | |
| | Main Piston Pump, Inner Parts, (2/12) (#50001-50173) | | |
| | Main Piston Pump, Inner Parts, (3/12) (#50001-50173) | | |
| | Main Piston Pump, Inner Parts, (4/12) (#50001-50173) | | |
| | Main Piston Pump, Inner Parts, (5/12) (#50001-50173) | | |
| | Main Piston Pump, Inner Parts, (6/12) (#50001-50173) | | |
| | Main Piston Pump, Inner Parts, (7/12) (#50001-50173) | | |
| | Main Piston Pump, Inner Parts, (8/12) (#50001-50173) | | |
| | Main Piston Pump, Inner Parts, (9/12) (#50001-50173) | | |
| | Main Piston Pump, Inner Parts, (10/12) (#50001-50173) | | |
| | Main Piston Pump, Inner Parts, (11/12) (#50001-50173) | | |
| | Main Piston Pump, Inner Parts, (12/12) (#50001-50173) | | |
