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Seastar Solutions HK4300-4 BayStar Compact Hydraulic Steering System Kit Without Hose

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

HK4300-4
06/01/2036 1:16 AM
Sale Price

$887.99

In Stock (5)

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Usually delivered within 2 days

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Product Details

The Seastar Solutions HK4300-4 BayStar Hydraulic Steering Kit is a compact front mount hydraulic steering system designed for single, non-power assisted outboard engines up to 150 HP on fishing boats, bay boats, and family runabouts. This complete kit pairs the HH4314-4 BayStar 1.4 cubic inch helm with the HC4645-3 front mount outboard cylinder for smooth, reliable steering performance.

Key Features:

  • Updated -4 version features redesigned valve technology, more durable check valves, and refined internal layout
  • 5 turns lock-to-lock with 1.4 cu. in. displacement helm for precise control
  • Patented No FeedBack (NFB) lock valves for enhanced safety
  • Standard 3/4 inch tapered keyed steering shaft with 5/8-18UNF threaded end
  • Meets ABYC standards and NMMA certification requirements
  • Requires 3 inch (76mm) dashboard cutout and minimum 21 inch (534mm) splashwell width

What's Included:

  • HH4314-4 BayStar helm pump
  • HC4645-3 compact front mount steering cylinder
  • Two quarts of HA5430H Dometic hydraulic steering fluid
  • HA5438 bottle filler kit for easy bleeding
  • Stainless steel O-ring seal (ORB) fittings
  • Detailed installation instructions

BayStar represents an excellent upgrade over mechanical cable steering for smaller outboards that cruise and run at moderate speeds. This system is designed for single helm, single outboard boats with a maximum speed of 55 mph and engines up to 150 HP. Note: Hydraulic hoses are sold separately to allow you to select the correct length for your specific installation.

Important: Do not use automotive power steering fluid or ATF - always use Dometic specified hydraulic steering fluid only. This kit replaces the previous HK4300A-3 model.

Everything went well with the exception I paid for 2 day shipping and received my package 4 days later, other than that all good.

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I had a great experience purchasing Power Stop brakes and rotors from THMotorsports. I got a great price and received exactly what I ordered in within 4 days. Great service !

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Hopefully these will be correct and I will have them in a few days.

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the website isn&#039;t loading correctly. I have ordered through here before with no issues. today i couldn&#039;t change my shipping option and it loaded the screen in text only. the price is still good, so its not a huge deal

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