This section drives the internal piston when the steering wheel is turned.
If you need to order parts using the diagram:
| Component | Likely Part Number | Notes | | :--- | :--- | :--- | | Complete Seal Kit | HS5157 | Includes all O-rings & shaft seals | | Rotor Set (Gerotor) | HS5116 | 2.0 cu in displacement | | Upper Shaft Seal | HS5029 | Common failure point for leaks | | Bypass Valve Kit | HS5130 | Spring, ball, and seal | | Input Shaft Kit | HS5227 | Shaft, key, upper bearing | | End Cap Gasket | HS5044 | Paper or rubber composite |
Seastar made minor revisions in 2007 and 2014. The early HH5271 used a bronze rotary piston; later versions used an aluminum one. The seals are different.
Located opposite the input shaft. This cap holds the cylinder block in compression. The retaining ring can be difficult to remove and often requires a specific internal snap ring plier.
This section drives the internal piston when the steering wheel is turned.
If you need to order parts using the diagram:
| Component | Likely Part Number | Notes | | :--- | :--- | :--- | | Complete Seal Kit | HS5157 | Includes all O-rings & shaft seals | | Rotor Set (Gerotor) | HS5116 | 2.0 cu in displacement | | Upper Shaft Seal | HS5029 | Common failure point for leaks | | Bypass Valve Kit | HS5130 | Spring, ball, and seal | | Input Shaft Kit | HS5227 | Shaft, key, upper bearing | | End Cap Gasket | HS5044 | Paper or rubber composite |
Seastar made minor revisions in 2007 and 2014. The early HH5271 used a bronze rotary piston; later versions used an aluminum one. The seals are different.
Located opposite the input shaft. This cap holds the cylinder block in compression. The retaining ring can be difficult to remove and often requires a specific internal snap ring plier.