| Item | Part No. | Part Name | Qty | Serial No. |
| 21W-973-3300 | VALVE ASS'Y | 4001-4599 | ||
| 1 | 21W-973-3310 | BLOCK | 4001-4599 | |
| 2 | 203-62-65122 | ROTOR | 4001-@ | |
| 3 | 20Y-970-3350 | FLANGE | 4001-@ | |
| 4 | 01010-81025 | BOLT | 4001-@ | |
| 5 | 01643-31032 | WASHER | 4001-@ | |
| 6 | 04025-00412 | PIN,SPRING | 4001-@ | |
| 7 | 07000-13042 | O-RING | 4001-@ | |
| 8 | 07000-13048 | O-RING | 4001-@ | |
| 9 | 07001-03042 | RING,BACK-UP | 4001-@ | |
| 10 | 07001-03048 | RING,BACK-UP | 4001-@ | |
| 11 | 07002-11223 | O-RING | 4001-@ | |
| 12 | 07002-12034 | O-RING | 4001-@ | |
| 13 | 07002-12434 | O-RING | 4001-@ | |
| 14 | 07040-11209 | PLUG | 4001-@ | |
| 15 | 07040-12012 | PLUG | 4001-@ | |
| 16 | 07040-12414 | PLUG | 4001-@ | |
| 17 | (709-70-74700) | VALVE ASS'Y | 4001-@ | |
| 18 | 21W-973-4120 | BRACKET | 4001-@ | |
| 19 | 01010-81030 | BOLT | 4001-@ | |
| 20 | 01643-31032 | WASHER | 4001-@ | |
| 21 | 01010-81230 | BOLT | 4001-@ | |
| 22 | 01643-31232 | WASHER | 4001-@ | |
| 23 | 21W-62-42540 | ELBOW | 4001-@ | |
| 24 | 07002-12034 | O-RING | 4001-@ | |
| 25 | 02896-11012 | O-RING | 4001-@ | |
| 26 | 02782-10422 | ELBOW | 4001-@ | |
| 27 | 07002-12034 | O-RING | 4001-@ | |
| 28 | 02896-11012 | O-RING | 4001-@ | |
| 29 | 02783-10422 | ELBOW | 4001-@ | |
| 30 | 07002-12034 | O-RING | 4001-@ | |
| 31 | 02896-11012 | O-RING | 4001-@ | |
| 32 | 02783-10628 | ELBOW | 4001-@ | |
| 33 | 07002-12434 | O-RING | 4001-@ | |
| 34 | 02896-11018 | O-RING | 4001-@ | |
| 35 | 02782-10628 | ELBOW | 4001-@ | |
| 36 | 07002-12434 | O-RING | 4001-@ | |
| 37 | 02896-11018 | O-RING | 4001-@ |