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Hydraulic Boat Steering

      Product Listing

      • Seastar HA5430H Hydraulic Steering Fluid -32 oz.
        $34.99
        $25.49

        Seastar HA5430H Hydraulic Steering Fluid - 32 Oz. Keep your steering smooth with SeaStar HA5430H hydraulic fluid for SeaStar and BayStar marine systems. This 32 oz. bottle contains a high-performance blend that maintains stable viscosity across...

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      • SeaStar HA5438 Bottle Filler Kit
        $33.99
        $19.68

        SeaStar HA5438 Bottle Filler Kit Includes hose with screw cap which fits SeaStar or equivalent oil bottles. Also includes push pin for venting/resealing bottle. Allows for clean bleed when used properly.

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      • T-H Marine Steer Stop Hydraulic Steering Lock
        $28.99
        $20.42

        T-H Marine Steer Stop Outboard Hydraulic Steering Lock 4" With the T-H Marine Steer Stop Hydraulic Steering Lock, boaters can center their outboard motor equipped with hydraulic steering and keep it from wandering when trailering. The units clip onto...

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      • SeaStar Standard Helm
        $812.39
        $676.99

        SeaStar Standard Hydraulic Steering Helm Hydraulic steering is a must to handle high-speed boats with high-torque engines. It enables optimal yet safe performance. As part of the steering system, the helm is made of two components- a hydraulic pump and...

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      • SeaStar Outboard Hydraulic Steering Hose Kit
        $211.49
        $152.49

        SeaStar Outboard Hydraulic Steering Hose Kit Includes two hoses - can be used with all SeaStar systems, except SeaStar PRO, BayStar, Capilano, and and 3-line inboard systems. Comes with two hoses Designed to Exceed SAE and ABYC Specifications and...

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      • SeaStar BayStar Hydraulic Helm
        $617.54
        $536.99

        SeaStar BayStar Hydraulic Helm BayStar super low friction hydraulic helm for smooth, comfortable steering. BayStar hydraulic steering is brought to you by the manufacturers of SeaStar, the most trusted name in pleasure boat steering. BayStar allows you...

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      • UFlex Marine Hydraulic Steering Fluid
        $27.99
        $19.90

        UFlex Marine Hydraulic Steering Fluid - Quart This hydraulic steering fluid is designed to provide optimal steering performance and system longevity in UFlex boat steering systems. This product is sold in 1 us quart containers.

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      • Seastar HS5157 Cylinder Seal Kit
        $221.99
        $184.99

        Seastar HS5157 Cylinder Seal Kit The Seastar HS5157 seal kit is an aftermarket replacement front seal kit for SeaStar pivot/front mount cylinders. Includes: Seal Glands Qty 2 Pin Wrench Seal Gland Assembly Guide Tools

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      • SeaStar Nylon Tube 3/8"
        $101.19
        $87.99

        SeaStar Nylon Tube 3/8” Nylon tubing can be used with SeaStar 1.7 helms on stern drives (except with HC5332 cylinder) and small inboards with fitting kit.  Do Not use on outboard systems.  

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      • Quicksilver 92-858078Q01 Hydraulic Helm Steering Fluid Back Image
        $26.99
        $23.99

        Quicksilver 92-858078Q01 Hydraulic Helm Steering Fluid Quicksilver Hydraulic Helm Steering Fluid is specially formulated for use in Mercury Mercruiser Hydraulic Helm Steering Systems. Can be used in bolt-on steering systems such as SeaStar systems...

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      • SeaStar HF5540 45 Degree Fitting
        $30.99
        $22.49

        SeaStar HF5540 45° Fitting (Pair) All SeaStar Manual Hydraulic steering systems utilize the same style of fittings for all applications.   This is a 3/8" compression fitting which utilizes a 9/16" - 24 extra fine thread.  Sold in...

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      • SeaStar Rear Mount Helm
        $869.39
        $755.99

        SeaStar Rear Mount Hydraulic Helm Features and Benefits: Behind dash mounting configuration Available in 1.4, 1.7, and 2.4 cubic inch displacements Top of dash fill point Complete with elbow fitting   HELM DESCRIPTION PART...

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      • SeaStar Pro Kevlar-Reinforced Hydraulic Hose Kit
        $231.14
        $200.99

        SeaStar Outboard Pro Kevlar-Reinforced Hydraulic Steering Hose Kit Includes two hoses - can be used with all SeaStar systems, except BayStar Capilano and and 3-line inboard systems. For use with the SeaStar PRO steering helms Kevlar Reinforced...

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      • SeaStar HK6400-4 Hydraulic Steering Kit without Hoses  Thumbnail Image
        $1,739.99
        $1,449.99

        SeaStar HK6400-4 Hydraulic Steering Kit without Hose For single and dual non-power-assisted outboard engines up to 350 HP (700 combined HP for counter-rotating duals) that have ABYC standard engine tilt lube.  Ideal for cruisers,...

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      Hydraulic Boat Steering Systems

      Hydraulic boat steering systems provide the ultimate combination of smooth handling, effortless control, and reliable performance - especially for high-horsepower or twin-engine boats. Whether you're replacing a worn system or upgrading from mechanical steering, hydraulic steering ensures precision at every turn.

      At Wholesale Marine, we stock complete hydraulic boat steering kits, replacement help pumps, hydraulic hoses, and steering cylinders from trusted brands like SeaStar Solutions (formerly Teleflex) and BayStar. From pontoons to offshore powerboats, our hydraulic systems make steering easier, safer, and more responsive - no matter the conditions.

      Why Upgrade to Hydraulic Steering?

      Hydraulic systems use pressurized fluid to transfer motion from your helm to the engine, eliminating the resistance and friction found in cable steering.

      Benefits include:

      • Effortless steering control: Turn the wheel smoothly even at high speeds or under load.
      • Precision and stability: Ideal for docking, trolling, or navigating rough water.
      • Reduced maintenance: No cables to stretch, corrode, or bind.
      • Perfect for larger boats: Handles the increased torque of modern high-output outboards.

      If you're currently running a mechanical setup, see our Upgrading from Mechanical to Hydraulic Steering Guide to learn when it's time to make the switch.

      Hydraulic Steering Components

      Whether you need a full kit or a single replacement part, you'll find everything to keep your system performing like new:

      • Hydraulic Helm Pumps: Convert wheel motion into hydraulic pressure.
      • Hydraulic Cylinders: Transfer pressure to your outboard or stern drive.
      • Hydraulic Steering Hoses: Carry fluid between components for smooth motion.
      • Hydraulic Fluid: Specially formulated for marine steering performance.

      Shop Hydraulic Steering Kits for single or dual-engine setups, or browse replacement components individually to match your existing system.

      Trusted Brands & Expert Support

      We carry the most reliable marine steering products from SeaStar Solutions (formerly Teleflex), BayStar, and Uflex - engineered for performance and durability in both freshwater and saltwater conditions.

      Not sure which system fits your boat? Our experts can help you find the right configuration for your engine horsepower and transom layout. Call (877) 388-2628 or chat with us online for personalized assistance.

      Frequently Asked Questions About Hydraulic Boat Steering

      What are the advantages of hydraulic steering?

      Hydraulic steering provides smooth, effortless control, perfect for high-horsepower engines and larger boats. It eliminates torque feedback and reduces driver fatigue.

      When should I upgrade from mechanical to hydraulic?

      If steering feel stiff, you've upgraded to a more powerful engine, or you own a larger vessel, hydraulic steering is a smart investment.

      Can I install hydraulic steering myself?

      Yes - experienced DIYers can install most kits using standard tools. For twin or high-performance setups, professional installation is recommended.

      How do I maintain a hydraulic steering system?

      Check fluid levels periodically, bleed air from the system annually, and inspect hoses and seals for leaks.

      What's included in a hydraulic steering kit?

      A complete kit includes the helm pump, hydraulic hoses, steering cylinder, and mounting hardware - everything needed for a new installation.

      Explore Hydraulic Steering Solutions at Wholesale Marine

      Whether you need a complete system or a replacement part, Wholesale Marine offers everything you need for smooth, previse steering. Explore our selection of Hydraulic Steering Kits, Helmp Pumps, Hoses, and Steering Fluid - all backed by expert support and fast shipping.