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Seastar Solutions HC5373-3 Hydraulic Steering Cylinder BA175-9TM 1.75" Bore 9" Stroke

Manufacturer

Seastar Solutions

<h3>About Seastar Solutions</h3><p><strong>Seastar Solutions</strong> has been a cornerstone of the recreational marine industry for more than eight decades. <a href="/7554-seastar-solutions-seastar-solutions-hydraulic-steering-200917">Founded in 1943</a> and headquartered in Litchfield, Illinois, the company built its reputation under the Teleflex Marine name before rebranding to Seastar Solutions in February 2013. In 2017, it was acquired by the Dometic Group, further expanding its global reach while preserving the engineering heritage that boaters had come to rely on.</p><h3>A Legacy of Marine Innovation</h3><p>Seastar Solutions' story of innovation begins in 1962, when the company introduced the Big-T cable steering system — a revolutionary design that replaced the traditional rope-and-pulley mechanism with a helical cable, fundamentally changing how small boats are steered. In the decades that followed, the brand continued pushing the boundaries of marine engineering, introducing firsts like tilt steering for recreational boats, CANBUS steer-by-wire technology, and award-winning systems like the Optimus 360 Joystick Control System.</p><p>Today, Seastar Solutions products are sold worldwide under the SeaStar, BayStar, Sierra, Prime Line, and Proheat brands — each recognized for quality, reliability, and technical innovation. Whether you're outfitting a weekend fishing boat or a high-performance offshore vessel, Seastar Solutions offers a system engineered to match your needs.</p><h3>Hydraulic Steering: The Heart of the Lineup</h3><p>At the core of the Seastar Solutions catalog is its industry-leading line of <a href="/7554-seastar-solutions-seastar-solutions-hydraulic-steering-200917">hydraulic steering systems</a>. Covering outboard, inboard, and sterndrive applications, these systems — including the popular SeaStar Pro and BayStar series — are the benchmark for smooth, precise helm control. From hydraulic helm pumps and cylinders to hoses, fittings, and complete kits, Seastar Solutions provides everything needed to build or upgrade a fully capable steering system.</p><p>The brand's hydraulic systems are particularly valued for high-horsepower setups, where mechanical steering can become fatiguing and imprecise. By routing hydraulic fluid through a sealed system, these helms deliver consistent feedback and effortless control regardless of engine load — a key safety and comfort advantage for serious mariners.</p><h3>OEM Quality for Aftermarket Needs</h3><p>One of the most trusted aspects of the Seastar Solutions brand is its compatibility across generations of boats. Because the company carries forward the engineering legacy of Teleflex Marine, most legacy steering components integrate seamlessly with current Seastar parts. This makes Seastar Solutions a reliable choice not only for new builds but also for long-overdue upgrades or routine maintenance on existing vessels.</p><p>From control and throttle cables to installation hardware, cylinders, helms, and fluid maintenance kits, Seastar Solutions covers the full spectrum of marine steering and control needs — making it the go-to source for boaters who demand performance they can count on.</p>

Part Number

HC5373-3
06/03/2036 11:09 AM
Sale Price

$1,013.34

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Product Details

The SeaStar Solutions HC5373-3 (Capilano Cylinder BA175-9TM) is a professional-grade hydraulic steering cylinder engineered for inboard marine applications. This aluminum cylinder features 316 stainless steel fittings and adjustable O-ring sealed ports that can be oriented to best suit your installation requirements.

Key Specifications:

  • 1.75-inch bore diameter for responsive steering control
  • 9-inch stroke length providing excellent range of motion
  • 17.6 cubic inch hydraulic volume capacity
  • Ball joint rod end (0.65-inch diameter) with two-axis articulation
  • Suitable for boats up to 70 feet in length
  • Torque output: 5,741 in/lbs at 1,000 PSI and 35 degrees

Features and Benefits:

  • Anodized aluminum construction for corrosion resistance and durability
  • Heavy-duty 316 stainless steel fittings thread into adjustable O-ring sealed ports
  • Two-axis articulation allows easy autopilot interface
  • Low friction hydraulic system for smooth, responsive steering
  • Compatible with catamaran applications without requiring a special "CAT" version
  • Easy installation for single or dual rudder vessels
  • Meets ABYC standards and NMMA certification requirements

This updated cylinder replaces several discontinued Capilano and Hynautic models including the HC5369 and K-22, maintaining the same mounting configurations while offering improved performance. The HC5373-3 is ideal for pleasure and work boats, providing reliable hydraulic steering control in demanding marine environments.

Quick and easy great price now we'll just have to see how fast it gets here and what the quality is like

Easy transaction

very complicated - hope this fits - good price thanks

T

This item on Amazon by your company is listed as 4&quot;x4&quot;x3.9&quot; which is incorrect. I hesitated and found your site which doesn't list the size. I hope this is correct for my RV Spartan engine. Otherwise your site is great!

Works Great!!

Fast and easy

Thanks

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