Teleflex HH5779-4 SeaStar Pro Front Mount 1.7 Hydraulic Marine Helm Pump

The Teleflex SeaStar Pro HH5779-4 is a front-mount hydraulic helm pump engineered for the demands of high-performance single-engine outboard boats. With a 1.7 cubic inch displacement, this helm pump is purpose-built for critical high-speed applications, delivering precise and responsive steering control at speeds in excess of 60 MPH.

The HH5779-4 is the latest generation of the SeaStar Pro series, directly replacing the HH5779-3 and original HH5779 models. Its updated valve technology and revamped design make it the go-to choice for performance-oriented boaters in bass, flats, combo race/ski, and other demanding marine environments.

Key Features:

• 1.7 cu. in. displacement front-mount hydraulic helm pump
• Designed for single-engine outboard applications up to 350 HP
• Suited for high-speed boats capable of speeds in excess of 60 MPH
• New valve technology for tighter, quieter, and more responsive steering
• Minimizes potential for chattering under overrunning steering loads
• More durable check valves for increased resilience to the rigors of trailering
• Patented steering lock valves and 4.25 turns lock-to-lock
• Compact design with a 4-7/16" dash footprint
• Multiple helm mounting options — shaft can be mounted horizontal, vertical, or any angle in between
• Revamped aesthetics with a new fill port plug design for easier maintenance
• Packaged with re-positionable o-ring hose fittings (ORB)
• Meets A.B.Y.C. standards and N.M.M.A. certification requirements
• Compatible with SeaStar Kevlar-reinforced, 1500 PSI hydraulic hose (sold separately)

Installation Notes: Do not use Teflon or Loctite on fittings. Do not install NPT fittings into the helm pump. The fluid cap must remain in the uppermost position at all times. Use only SeaStar Steering Fluid or Mil-Spec H5606 fluid — never brake fluid. Install hose fittings before mounting the helm pump for easier installation.

Supersedes: HH5779-3, HH5779

The SeaStar Pro HH5779-4 is the ultimate hydraulic steering helm for performance boaters who demand precise control at high speeds. Pair it with SeaStar Pro cylinders and SeaStar hydraulic hose for a complete, high-performance marine steering system.