SeaStar HC5370 Hydraulic Steering Cylinder – Heavy-Duty Front Mount Outboard Cylinder

Product Overview

The SeaStar HC5370 Hydraulic Steering Cylinder is a heavy-duty front-mount outboard steering cylinder engineered for powerful single or twin outboard installations. Built by SeaStar Solutions (Dometic), this cylinder delivers smooth, precise steering control while handling the demands of high-horsepower offshore boats.

Designed for durability in harsh saltwater environments, the HC5370 is trusted by marine technicians and performance boat owners for reliable steering performance on center consoles, offshore fishing boats, and high-performance rigs.

Key Features

• Heavy-duty front-mount steering cylinder

• Designed for high-horsepower outboards

• Smooth hydraulic steering response

• Corrosion-resistant stainless steel rod

• Marine-grade seals & construction

• Compatible with SeaStar hydraulic steering systems

Why Upgrade to a Heavy-Duty SeaStar Cylinder?

Hydraulic steering cylinders like the HC5370 provide major performance benefits:

✔ Smooth, torque-free steering
✔ Better control at high speeds
✔ Reduced driver fatigue
✔ Safer handling offshore
✔ Long-lasting reliability

Ideal Applications

Perfect for boats such as:

• Offshore center consoles

• Performance fishing boats

• Large bay boats

• Twin-outboard setups

• High-horsepower single outboards

Compatible with most major outboard brands including Mercury, Yamaha, Suzuki, Honda, and Evinrude (verify engine compatibility).

Installation Notes

• Designed for standard front-mount steering configuration

• Requires SeaStar helm pump and hoses

• Use SeaStar HA5430 steering fluid

• For twin engines, pair with SeaStar tie-bar kit and HA5471 tie-bar valve

• Professional installation recommended

Technical Specifications

• Part Number: HC5370

• Brand: SeaStar / Dometic

• Product Type: Hydraulic Steering Cylinder

• Mount Type: Front Mount

• Compatibility: SeaStar hydraulic steering systems

• Use: Single or twin outboards

• Material: Marine-grade components