| Item | Part No. | Part Name | Qty | Serial No. |
| 561-40-83300 | Valve Assembly, Steering | 8173-9225 | ||
| 1 | 561-40-00100 | Seal Kit | 8173-9225 | |
| 2 | 561-40-63470 | Seal | 8173-9225 | |
| 3 | 561-40-00200 | Seal Kit | 8173-9225 | |
| 4 | 561-40-63310 | Housing Assembly | 8173-9225 | |
| 5 | 561-40-63320 | Spring | 8173-9225 | |
| 6 | 561-40-63340 | Screen Assembly | 8173-9225 | |
| 7 | 561-40-63360 | Plug Kit | 8173-9225 | |
| 8 | 566-40-42580 | O-ring | 8173-9225 | |
| 9 | 561-40-63390 | Link | 8173-9225 | |
| 10 | 561-40-63410 | Rotor Assembly | 8173-9225 | |
| 11 | 561-40-63420 | Case | 8173-9225 | |
| 12 | 561-40-63430 | Bolt | 8173-9225 | |
| 13 | 561-40-83460 | Valve Assembly | 8173-9225 | |
| 14 | 561-40-63440 | O-ring | 8173-9225 | |
| 15 | 561-40-83490 | Torsion Bar Assembly | 8173-9225 | |
| 566-40-00510 | Service Kit | 8173-9225 | ||
| 16 | 566-40-42811 | Cover | 8173-9225 | |
| 17 | 566-40-42822 | Seal | 8173-9225 | |
| 18 | 566-40-42530 | Ball | 8173-9225 | |
| 19 | 566-40-42590 | Shaft | 8173-9225 | |
| 20 | 566-40-42620 | Ring | 8173-9225 | |
| 21 | 569-40-42630 | Spacer | 8173-9225 | |
| 22 | 566-40-42640 | Roller | 8173-9225 | |
| 23 | 566-40-42650 | Ring | 8173-9225 | |
| 24 | 566-40-42660 | Shim Group | 8173-9225 | |
| 25 | 566-40-42670 | Washer | 8173-9225 | |
| 26 | 566-40-42680 | Bearing | 8173-9225 | |
| 27 | 566-40-42690 | Washer | 8173-9225 | |
| 28 | 566-40-42710 | Washer | 8173-9225 | |
| 29 | 566-40-42720 | Ball | 8173-9225 | |
| 30 | 566-40-42730 | Spring | 8173-9225 | |
| 31 | 566-40-42740 | Spacer | 8173-9225 | |
| 32 | 566-40-42760 | Plate | 8173-9225 | |
| 33 | 566-40-42780 | Manifold | 8173-9225 | |
| 34 | 566-40-42790 | Commutator Assembly | 8173-9225 | |
| 35 | 566-40-42830 | Bolt | 8173-9225 | |
| 36 | 566-40-42870 | Ring | 8173-9225 | |
| 37 | 566-40-42890 | Cover Assembly | 8173-9225 |
