| Item | Part No. | Part Name | Qty | Serial No. |
| (708-23-01070) | PUMP ASS'Y (HPV55+55) | 3501- | ||
| 708-23-07221 | SERVO VALVE ASS'Y,REAR | 3501- | ||
| 1 | (708-23-16200) | SERVO VALVE SUB A.,REAR | 3501- | |
| 2 | (708-23-07621) | VALVE ASS'Y,CO AND NC | 3501- | |
| 3 | 07000-02011 | O-RING | 3501- | |
| 4 | 708-25-19160 | BOLT | 3501- | |
| 5 | 01602-20825 | WASHER,SPRING | 3501- | |
| 6 | 720-68-11920 | FILTER | 3501- | |
| 7 | 07000-12010 | O-RING | 3501- | |
| 8 | 07000-11009 | O-RING | 3501- | |
| 9 | 720-68-11920 | FILTER | 3501- | |
| 10 | 708-23-19130 | ORIFICE | 3501- | |
| 11 | 07000-12010 | O-RING | 3501- | |
| 12 | 07000-03048 | O-RING | 3501- | |
| 13 | 07040-11409 | PLUG | 3501- | |
| 14 | 07002-01423 | O-RING | 3501- |