Seastar Hydraulic Steering is a marine steering system that uses a helm pump, hydraulic hoses, and a steering cylinder to transfer steering input smoothly to an outboard or inboard engine. Designed for boating safety and critical control, it supports front or rear mount configurations, tilt helms, and pro-level setups, delivering reliable, sealed hydraulic performance for a wide range of boats operating at sea.
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1-2 weeks delivery time The SeaStar HO5714 Pro Hose Kit (14') is a heavy-duty hose designed for SeaStar PRO Helm pumps, offering 14 feet of Kevlar-reinforced hose capable of handling pressures up to 1500 psi. The hose is built for maximum durability with kink and abrasion resistance, low thermal expansion properties, and solid fittings. Standard brass fittings are included, but for saltwater applications, stainless steel fittings are available. It meets or exceeds both SAE and ABYC specifications.
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$ 621.49
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1-2 weeks delivery time The SeaStar HO5716 Pro Hose Kit (16') offers high-performance Kevlar-reinforced hose for SeaStar PRO Helm pumps, providing an extended 16-foot reach. This hose can withstand up to 1500 psi of pressure, is kink and abrasion resistant, and has low thermal expansion properties. It comes with brass fittings, which can be upgraded to stainless steel for saltwater environments. The hose exceeds SAE and ABYC standards, making it highly reliable in demanding marine conditions.
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$ 621.49
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1-2 weeks delivery time The SeaStar HO5718 Pro Hose Kit is a durable 18-foot hose designed for SeaStar PRO steering systems. Made with reinforced Kevlar, it offers exceptional performance with high-pressure tolerance, low thermal expansion, and resistance to abrasion and kinks. The hose comes with swaged solid fittings and is compatible with all Seastar systems, available with brass fittings or an upgrade to stainless steel for saltwater environments.
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$ 681.73
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1-2 weeks delivery time The SeaStar HO5720 Pro Hose Kit is a 20-foot hose designed for SeaStar PRO steering systems, offering durability and high-pressure resistance. With reinforced Kevlar construction, it provides low thermal expansion properties and is resistant to kinks and abrasion. The hose is equipped with swaged solid fittings and is compatible with all Seastar systems, with the option to upgrade to stainless steel fittings for saltwater applications.
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$ 741.80
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1-2 weeks delivery time The SeaStar HO5722 Pro Hose Kit is a 22-foot hose ideal for long-range applications requiring high-pressure tolerance and durability. Reinforced with Kevlar, this hose offers excellent resistance to thermal expansion, abrasion, and kinks, making it perfect for SeaStar PRO steering systems. It includes swaged solid fittings and can be used with all Seastar systems, with brass fittings standard or an upgrade to stainless steel for saltwater environments.
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$ 802.01
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1-2 weeks delivery time The SeaStar HO5724 Pro Hose Kit provides a 24-foot length hose designed for extended-range applications. Built with reinforced Kevlar, it offers high-pressure resistance and durability against thermal expansion, abrasion, and kinks. The hose includes swaged solid fittings with an O-ring seal and is suitable for use with all Seastar systems, with an option for stainless steel fittings for saltwater applications.
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$ 862.50
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1-2 weeks delivery time The SeaStar HO5726 Pro Hose Kit is a 26-foot hose offering excellent performance for long-range applications. Reinforced with Kevlar, it delivers exceptional high-pressure resistance, kink resistance, and durability against thermal expansion and abrasion. The hose features swaged solid fittings and is compatible with all SeaStar systems, with brass fittings standard and an option to upgrade to stainless steel for saltwater use.
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$ 922.63
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1-2 weeks delivery time The SeaStar HO5728 Pro Hose Kit is a 28-foot hose engineered for long applications requiring high-pressure resistance. With reinforced Kevlar construction, it ensures exceptional durability and low thermal expansion, while being resistant to abrasion and kinks. The hose includes swaged solid fittings and is compatible with all Seastar systems, with an upgrade option for stainless steel fittings for saltwater use.
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$ 982.37
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1-2 weeks delivery time The SeaStar HO5730 Pro Hose Kit is designed for extended applications, providing a 30-foot length for SeaStar PRO steering systems. Reinforced with Kevlar, it offers high pressure resistance, durability, and resistance to thermal expansion and abrasion, making it ideal for demanding marine environments.
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$ 1,042.56
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1-2 weeks delivery time The SeaStar HO6001 Tie Bar Kit is designed for front mount single-cylinder, twin-engine applications. It includes all necessary components, such as the tie bar, adaptor plates, and hardware for engine connection. It has a net weight of 4.79 lbs and is compatible with SeaStar steering fluid.
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$ 973.69
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1-2 weeks delivery time The SeaStar HO6002 Tie Bar Kit is specifically made for twin-engine setups, offering a complete solution for connecting engines. It is compatible with various engine brands and cylinders, including the SeaStar HC5345, HC5348, and HC5358 models. The net weight is 4.29 lbs.
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$ 983.23
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1-2 weeks delivery time The SeaStar HO6820 Tie Bar is a heavy-duty construction tie bar designed for high-performance multiple engine applications. This small tie bar is made from anodized aluminum with stainless steel rod ends, offering durability and reliability. It weighs 2.18 lbs.
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$ 905.53
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1-2 weeks delivery time The SeaStar HO6821 Tie Bar is a medium-sized heavy-duty tie bar designed for use with the SeaStar Tournament Series Cylinders. It is ideal for high-performance, multiple-engine setups but can also be used for single-engine applications. It includes stainless steel rod ends and an anodized aluminum body.
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$ 921.91
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1-2 weeks delivery time The SeaStar HO6822 Tie Bar is a large heavy-duty tie bar designed for extreme conditions and high-performance, multiple-engine setups. Made with anodized aluminum and stainless steel rod ends, it offers reliable performance and durability. It also comes with a 2-year warranty.
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$ 1,061.66
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1-2 weeks delivery time The SeaStar HO6823 Tie Bar is an extra-large tie bar, designed for Seastar Tournament Series Cylinders. It provides heavy-duty performance for high-performance multi-engine applications and can also be used for single-engine setups. It features anodized aluminum and stainless steel rod ends, with a 2-year warranty.
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$ 1,251.79
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1-2 weeks delivery time The SeaStar HO7100 is a stainless steel, single hose bulkhead kit offering an elegant and durable solution for routing hoses through the hull. The stainless steel cover plates complement your boat’s trim while ensuring simple, secure installation through its split pigtail and increased diameter.
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$ 136.93
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1-2 weeks delivery time The SeaStar HO7105 is a plastic single hose bulkhead kit designed for routing hoses through the hull. It features an easy installation process with a split grommet design and snap-fit tabs, ensuring a secure and efficient setup for SeaStar and BayStar deluxe hoses.
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$ 63.89
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1-2 weeks delivery time The SeaStar HO7200 is a dual hose, stainless steel bulkhead kit for routing hoses through the hull with increased corrosion resistance. Its split pigtail and snap-fit tabs make installation simple, and the stainless steel cover plates provide a sleek finish for your boat’s aesthetics.
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$ 125.94
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1-2 weeks delivery time The SeaStar HO7205 is a dual hose, plastic bulkhead kit designed for easy installation through the hull. It features a split grommet design, snap-fit tabs, and an increased inner diameter for secure hose fitting installation, making it a perfect solution for SeaStar and BayStar deluxe hoses.
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$ 62.31
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1-2 weeks delivery time The SeaStar Horizontal Bleeder Tee is designed for hydraulic steering systems. This kit includes two bleeder tees, ideal for cylinder models HC5303-3, HC5312-3, and others, to ensure effective hydraulic control.
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$ 162.13
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How does a Seastar Hydraulic Steering system transmit steering input to a boat’s engine?
A hydraulic steering system transmits steering input through a steering kit where helm rotation pressurizes fluid that flows via a valve to the steering cylinder. In front mount or pro rear mount configurations, the cylinder converts this pressure into smooth engine movement, while seals and a seal kit ensure reliability according to system spec, supporting classic tilt, flush, and sport tilt helm designs.
How does a hydraulic cylinder translate steering input into engine movement on a boat?
A hydraulic cylinder translates steering input into engine movement by using pressurized fluid to push or pull the cylinder rod in response to helm rotation. Matched to the system ratio such as 1.7, this product delivers smooth, proportional force that turns the engine accurately, ensuring controlled and predictable steering on a boat.
How does a steering kit integrate the pump, hoses, and valve into one system?
A steering kit integrates the pump, hoses, and valve by forming a closed hydraulic loop that transfers steering input smoothly from the helm to the engine. Designed for pro front mount and sport configurations, the system ensures balanced fluid flow and precise response at sea, supporting advanced solutions such as optimus e-actuator concepts and sport plus performance standards demonstrated in technical video documentation.