Seastar Hh5271 Parts Diagram [2021] Jun 2026

: The core axial piston pump that moves fluid through the system. Roller Bearings

A: Yes, many aftermarket seal kits are available on Amazon and other platforms. However, for best results and longevity, it is recommended to use genuine Dometic SeaStar parts. Aftermarket kits may work, but quality can vary. Look for kits that specifically list compatibility with or HP6032 .

: The heavy-duty stainless steel drive input spindle that translates mechanical rotation down into the internal piston assembly. 2. Hydraulic Fluid Seal Group Seastar Hh5271 Parts Diagram

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| Ref # | Component Description | Seastar Part # (Typical) | | :--- | :--- | :--- | | | Shaft Seal Kit (Includes O-rings/Seals) | HA5418 | | 2 | Steering Shaft Assembly | HH5261 | | 3 | tapered Roller Bearing (Upper) | SA5010 | | 4 | Tapered Roller Bearing (Lower) | SA5010 | | 5 | Front Cover Plate | HH5232 | | 6 | Front Cover O-Ring | 28889 | | 7 | Front Cover Screw (1/4"-20 x 3/4") | 80310 | | 8 | Helm Body (Casting) | HH5230 | | 9 | Cylinder Assembly (Internal Gear/Cam) | HH5233 | | 10 | Check Valve Assembly | HH5234 | | 11 | Check Valve Spring | HH5235 | | 12 | Plug (1/4" NPTF) | 27185 | | 13 | Breather/Oil Filler Plug | HH5314 | | 14 | Breather Plug O-Ring | HH5315 | | 15 | Locknut (For steering shaft) | HH5263 | | 16 | Woodruff Key | 50319 | | 17 | Set Screw (3/8"-16 x 3/8") | 80316 | | 18 | Bearing Washer | HH5262 | : The core axial piston pump that moves

Whether you are rebuilding a leaking helm with an , retrofitting an old dashboard cutout with a 291908 mounting kit , or simply checking the fluid level before a long offshore trip, knowing how the HH5271 goes together is an invaluable skill. Regular inspection and maintenance of the helm pump, hoses, fittings, and steering cylinder will ensure smooth, reliable steering control for years to come. If in doubt, always consult the official SeaStar installation manual for diagrammatic data specific to your application, and never hesitate to contact a certified marine technician for complex repairs.

This is the shaft that connects directly to your steering wheel. It transfers rotational torque into the hydraulic pumping mechanism. The input shaft uses a keyway or spline (depending on variant). Wear here often results in steering wheel play. Aftermarket kits may work, but quality can vary

The check valves prevent feedback from the engine to the wheel, while the relief valve protects the system from over-pressurization. The result is smooth, effortless steering even in rough conditions or with high-horsepower engines.