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Seastar Solutions HC53703 Side Mount Outboard Steering Cylinder

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

HC53703
06/03/2036 12:23 PM
Sale Price

$608.04

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Seastar Solutions HC53703 is a side-mount outboard steering cylinder designed for reliable marine steering performance. This cylinder is part of Seastar's comprehensive line of hydraulic steering components, engineered to deliver precise boat control and long-lasting durability in harsh marine environments.

Key Features:

  • Side-mount configuration for flexible installation options on various hull designs
  • Hydraulic cylinder construction with corrosion-resistant materials for marine use
  • Compatible with Seastar hydraulic steering systems for single outboard engines
  • Precision machined components ensure smooth, responsive steering feedback
  • Sealed design protects internal components from water and contaminants
  • Direct replacement for existing Seastar side-mount cylinders

This side-mount cylinder is ideal for installations where space constraints or transom design make front-mount or splashwell-mount cylinders impractical. The HC53703 provides the same reliable hydraulic steering performance Seastar is known for, with mounting flexibility for custom or tight-space applications.

easy deal!!

I have to return two of my items, still waiting for return information.

Easy and cheap will see when get the part

I didn't get a shipping notice until three days after I got the product. It was exactly what I ordered and did arrive during the proper time frame

Fast

Awesome prices. Best around.

Great Prices!

glad to find this web

Best price on Bilstein Shocks on the web. Ordered shocks on 4/25 and they shipped same day. FedEx has delivery date of 4/28. Received confirmation email after order was complete. Website had product inventory next to part number was very helpful. Other websites don't have this and this patprticular part is on back order for 30 + days. Will update once shipment received.

All good so far. Could be a little clearer about if the order will include needed any additionally needed hardware for install.

This was my first order but will definitely use them again. Best price and quick shipment.

Good price. So far so good

Great price, problem with the manufacturer shipping it out, but was rectified by Autoplicity. Very good follow up customer service.

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