| Item | Part No. | Part Name | Qty | Serial No. |
| 419-43-12601 | VALVE,DIFFERENTIAL | 30001-30500 | ||
| 1 | 419-43-12290 | BODY | 30001-30500 | |
| 2 | 419-43-12970 | SPOOL | 30001-30500 | |
| 3 | 07000-01007 | O-RING | 30001-30500 | |
| 4 | 01642-20608 | WASHER | 30001-30500 | |
| 5 | 419-43-12980 | SPRING | 30001-30500 | |
| 6 | 419-43-12990 | PLUG | 30001-30500 | |
| 7 | 07002-02034 | O-RING | 30001-30500 | |
| 8 | 421-06-11982 | SWITCH | 30001-30500 | |
| 9 | 07002-02034 | O-RING | 30001-30500 |