Seastar Solutions HH5263-4 Rear Mount 2.0 Hydraulic Helm Pump

The SeaStar Solutions HH5263-4 is a rear mount hydraulic helm pump with 2.0 cubic inch displacement, designed to deliver smooth, efficient no-feedback steering for marine applications. This helm pump is the heart of hydraulic steering systems for inboard, sterndrive, and outboard boats up to 50 feet in length.

Key Features:

• 2.0 cubic inch displacement for optimal steering response
• Rear mount configuration with flexible installation angles
• Suitable for single outboard engines traveling up to 55 MPH
• No-feedback steering system for enhanced comfort and control
• Supports single and multi-outboard engines up to 350 HP (700 HP combined for counter-rotating twins)
• Packaged with re-positionable O-ring boss (ORB) hose fittings
• Improved check valve durability and reduced chatter noise
• Better trailering performance and longer service life
• Full compatibility with existing SeaStar hydraulic steering systems

The HH5263-4 replaces the HH5263-3 and HH5263 models as the direct replacement. The helm may be mounted with the shaft horizontal, vertical, or any angle in between for maximum installation flexibility. 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.

This helm pump is part of the world's most popular hydraulic steering system, chosen by OEMs for center consoles, cruisers, and high-performance hulls. It delivers tighter, more responsive steering with better regrip performance for today's demanding marine applications.