| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 20Y-60-11900 | BYPASS VALVE ASS'Y | 40001-44999 | |
| 2 | 07000-12012 | O-RING | 40001-44999 | |
| 3 | 07000-12018 | O-RING | 40001-44999 | |
| 4 | 07001-02018 | RING | 40001-44999 | |
| 5 | 07000-13025 | O-RING | 40001-44999 | |
| 6 | 203-62-61670 | BLOCK | 40001-44999 | |
| 7 | 07000-13025 | O-RING | 40001-44999 | |
| 8 | 203-62-61660 | BLOCK | 40001-44999 | |
| 9 | 205-62-74740 | BOLT | 40001-44999 | |
| 10 | 01643-51032 | WASHER | 40001-44999 | |
| 11 | 203-62-61680 | PLATE | 40001-44999 | |
| 12 | 01010-51025 | BOLT | 40001-44999 | |
| 13 | 01643-31032 | WASHER | 40001-44999 | |
| 14 | 07236-10210 | ELBOW | 40001-44999 | |
| 15 | 07002-11423 | O-RING | 40001-44999 | |
| 16 | 01010-51225 | BOLT | 40001-44999 | |
| 17 | 01643-31232 | WASHER | 40001-44999 | |
| 18 | 205-62-52390 | ADAPTER | 40001-44999 | |
| 19 | 07002-12434 | O-RING | 40001-44999 | |
| 20 | 07235-10210 | ELBOW | 40001-44999 | |
| 21 | 07002-11423 | O-RING | 40001-44999 | |
| 22 | 203-62-61610 | HOSE | 40001-44999 |