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SeaStar HH5772-4 PRO Front Mount 2.4 Marine Hydraulic Helm Pump

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MSRP: $868.29
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SeaStar HH5772-4 PRO Front Mount 2.4 Marine Hydraulic Helm Pump

The Dometic SeaStar PRO outboard steering helms (HH57724) and cylinders are suited for critical high speed, single powered outboard boats, like bass, flats, combo race/ski and other performance orientated boats capable of speeds in excess of 60mph. Designed for the performance boater, Dometic SeaStar Pro is the ultimate steering system for high-speed single engine outboards.

Important: SeaStar Helm Update to -4

The latest series of helms has been redesigned to provide a better experience for the vessel operator:

  • New valve technology ensures tighter, quieter, and more responsive steering, while minimizing the potential for chattering when dealing with overrunning steering loads.
  • More durable check valves, making the entire steering system more resilient to the rigors of trailering.
  • Revamped Design to enhance their aesthetics, and has introduced a new fill port plug design for easier maintenance.
  • HH5772-4 replaces the HH5772-3, HH5772 and is the direct replacement



  • For single-engine application only
  • Single outboard engine boats that travel in excess of 60 MPH


  • Marine Grade Aluminum Shaft
  • 4.25 Turns lock to lock (measured with HC6345-3)
  • Only needs a 3" dash cut out
  • 3/4" Tapered steering shaft
  • Warranty: Limited 2 Year

What Comes In The Box:

  • HH5772-4 Helm Pump
  • Mounting Hardware
  • HF6004 Fitting Kit 2x ORB-5 90° repositionable elbow fittings


  • Must be used with the SeaStar PRO Kevlar Hoses (HO57XX and HO82XX)
  • Must be used with the PRO Cylinder (HC6345-3 or HC6358-3)
  • Relief valve settings 1500PSI

Downloads & Resources: 

  • SeaStar Boat Helm Installation Manual [PDF
  • SeaStar Hydraulic Steering Selection Guide [PDF]
  • SeaStar Marine Steering Catalog [PDF]
  • Dometic Seastar Hydraulic Build Guide [HERE]
  • We can rebuild your HH5772-4 [HERE]

Related Items & Spare Parts:


  • No Sales Tax on Purchases Outside of California
  • FREE Overnight Shipping to the Lower 48 States
  • Buy Now Pay Later with Affirm or PayPal Pay Later
  • Formerly Teleflex, Seastar is now Dometic Marine
  • Seatech Marine Products, Inc. is an authorized dealer, and service center for Dometic Marine

International, USVI, Puerto Rican, Hawaiian & Alaskan Customers: We Ship Worldwide and USPS, Shipping Cost May Quote Too High on Our Web Site, Contact Us for A Quote.

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Warranty Information

Seatech Marine Products is an authorized dealer for Dometic that distributes Seastar Products, this part has a 2 Year Limited Warranty from them. Please visit their website for full details:
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