| Item | Part No. | Part Name | Qty | Serial No. |
| 1 | 418-43-47203 | Valve Assembly | B20001-- | |
| 2 | 418-43-47231 | Spool | B20001-- | |
| 3 | 417-43-37530 | Spring | B20001- | |
| 4 | 417-43-37540 | Plug | B20001- | |
| 5 | 417-43-37550 | O-ring | B20001- | |
| 6 | 417-43-37560 | Plug | B20001- | |
| 7 | 417-43-37570 | Spring | B20001- | |
| 8 | 417-43-37580 | Plug | B20001- | |
| 9 | 417-43-37620 | Orifice | B20001- | |
| 10 | 417-43-37640 | Orifice | B20001-- | |
| 11 | 417-43-37650 | Plunger | B20001- | |
| 12 | 417-43-37660 | Valve | B20001- | |
| 13 | 417-43-37670 | Spring | B20001- | |
| 14 | 417-43-37680 | Spring | B20001- | |
| 15 | 417-43-37690 | Spring | B20001- | |
| 16 | 417-43-37710 | Plug | B20001- | |
| 17 | 417-43-37720 | O-ring | B20001- | |
| 18 | 417-43-37730 | Seat | B20001- | |
| 19 | 417-43-37740 | O-ring | B20001- | |
| 20 | 417-43-37750 | Screw | B20001- | |
| 21 | 417-43-37760 | Nut | B20001- | |
| 22 | Spool | B20001- | ||
| 23 | 417-43-37780 | Washer | B20001- | |
| 24 | 417-43-37790 | Spring | B20001- | |
| 25 | 419-43-37780 | Orifice | B20001-- | |
| 26 | 418-43-47210 | Valve, Relief | B20001-- |