| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 425-64-25102 | STEERING DEMAND VALVE | H20051- | |
| 1A | 421-64-25230 | HOUSING | H20051- | |
| 2 | 421-64-15190 | SPOOL | H20051- | |
| 3 | 425-64-25140 | SPOOL | H20051- | |
| 4 | 421-64-15440 | PLUG | H20051- | |
| 5 | 421-64-25290 | SCREW | H20051- | |
| 6 | 421-64-15460 | O-RING | H20051- | |
| 7 | 421-64-15470 | O-RING | H20051- | |
| 8 | 421-64-15480 | RING | H20051- | |
| 9 | 421-64-15490 | SPRING | H20051- | |
| 10 | 421-64-15710 | POPPET | H20051- | |
| 11 | 421-64-15340 | SPRING | H20051- | |
| 12 | 423-64-15530 | SCREW | H20051- | |
| 13 | 423-64-15540 | SEAT | H20051- | |
| 14 | 423-64-15550 | SPRING | H20051- | |
| 15 | 421-64-25270 | CAP | H20051- | |
| 16 | 421-64-25420 | BOLT | H20051- | |
| 17 | 421-64-15780 | O-RING | H20051- | |
| 18 | 421-64-15790 | O-RING | H20051- | |
| 19 | 421-64-15810 | PLUG | H20051- | |
| 20 | 421-64-15820 | O-RING | H20051- | |
| 21 | 421-64-15310 | PLUG | H20051- | |
| 22 | 421-64-15330 | POPPET | H20051- | |
| 23 | 421-64-15850 | O-RING | H20051- | |
| 24 | 421-64-15860 | SPRING | H20051- | |
| 25 | 421-64-15320 | SHIM | H20051- | |
| 26 | 421-64-15870 | O-RING | H20051- | |
| 27 | 421-64-15880 | VALVE ASSEMBLY | H20051- | |
| 28 | 421-64-15890 | VALVE ASSEMBLY | H20051- | |
| 29 | 421-64-15170 | O-RING | H20051- | |
| 30 | 421-64-25250 | SLEEVE ASSEMBLY | H20051- | |
| 31 | 07000-12012 | O-RING | H20051- | |
| 32 | 421-64-25240 | CAP | H20051- |