Seastar Solutions HH5273-4 Front Mount Hydraulic Helm Pump 2.0 Cu In with ORB Fittings

The Seastar Solutions HH5273-4 is a front mount hydraulic helm pump featuring 2.0 cubic inch displacement, designed to deliver smooth, feedback-free steering for modern marine applications. This helm pump is the heart of the hydraulic steering system and represents the latest generation with upgraded ORB (O-Ring Boss) fittings for improved reliability and performance.

Key Features:

• 2.0 cubic inch (32.7 cm³) fluid displacement for optimal steering response
• Front mount design with 4-7/16" footprint and 3/4" tapered shaft
• Upgraded stainless steel ORB (O-Ring Boss) fittings for superior sealing and durability
• Greatly reduced "chatter" noise from overrunning steering loads
• Improved check valve design for better trailering performance and longer service life
• Eliminated flow noise when coming off hard-over position
• Decreased clicking sound during steering reversal
• Tighter, more responsive steering with better "regrip" performance (precession)
• Compatible with steering wheels up to 28" diameter
• Full compatibility with existing SeaStar hydraulic steering systems

Applications:

• Single and multi-outboard engines up to 350 HP (700 HP combined for counter-rotating twins)
• Inboard, sterndrive, and outboard boats up to 50 feet
• Suitable for speeds up to 60 MPH
• Ideal for center consoles, cruisers, and high-performance hulls

Replacement Information: The HH5273-4 directly replaces previous models HH5273-3 and HH5273, offering enhanced performance with updated ORB fitting technology. The helm can be mounted with the shaft horizontal, vertical, or at any angle in between for flexible installation options.

Backed by Dometic's reputation for quality and reliability, this helm pump delivers the unmatched comfort and control that SeaStar steering systems have been known for over nearly 60 years in the marine industry.