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 SS13813/Z offers a 13-foot (3.96m) cable for boats requiring longer steering control. This system includes the Seastar Light Duty Steering Helm, bezel, mounting kit, and steering cable. With 2.55 turns from lock to lock and a 200mm maximum wheel diameter, it provides easy handling with a 90° mounting and friction brake for reliable steering over greater distances.
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$ 251.81
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1-2 weeks delivery time The SeaStar SS13814 system provides a 14-foot cable for boaters who need more steering range. With corrosion-resistant materials and a friction brake, this system offers smooth, responsive handling while maintaining durability and long-term reliability.
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$ 300.79
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1-2 weeks delivery time The SeaStar SS13814/Z features a 14-foot (4.27m) cable, making it perfect for boats needing additional length for steering control. It includes the Seastar Light Duty Steering Helm, bezel, mounting kit, and steering cable. The system offers 2.55 turns from lock to lock, a maximum wheel diameter of 200mm, and a 90° mounting angle with friction brake, providing flexibility in steering for larger boats.
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$ 255.67
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1-2 weeks delivery time Designed for boats needing even more reach, the SeaStar SS13815 system includes a 15-foot cable. It delivers smooth, friction-controlled steering with added durability, perfect for installations requiring extended cable length and reliable performance.
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$ 304.62
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1-2 weeks delivery time The SeaStar SS13815/Z is ideal for boats requiring a 15-foot (4.57m) cable. This system includes the Seastar Light Duty Steering Helm, bezel, mounting kit, and the 15-foot steering cable, offering smooth steering and easy control. With 2.55 turns from lock to lock, a maximum wheel diameter of 200mm, and a 90° mounting angle with friction brake, it is designed for larger vessels.
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$ 259.50
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1-2 weeks delivery time The SeaStar SS13816 system offers a 16-foot cable, perfect for boaters requiring maximum steering flexibility. Its friction brake and corrosion-resistant components ensure a smooth and durable experience for extended journeys.
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$ 308.44
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1-2 weeks delivery time The SeaStar SS13816/Z offers a 16-foot (4.88m) cable, ideal for boats that need extended cable length for greater steering flexibility. It includes the Seastar Light Duty Steering Helm, bezel, mounting kit, and steering cable. The system features 2.55 turns from lock to lock, supports a 200mm maximum wheel diameter, and includes a 90° mounting with friction brake for reliable control.
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$ 263.32
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1-2 weeks delivery time The SeaStar SS13817 system is equipped with a 17-foot cable, designed for boats that need extra reach. Featuring a friction brake and corrosion-resistant build, it ensures smooth handling and long-lasting durability on the water.
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$ 312.30
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1-2 weeks delivery time The SeaStar SS13817/Z provides a 17-foot (5.18m) cable for larger boats or installations requiring more length. It comes with a Seastar Light Duty Steering Helm, bezel, mounting kit, and steering cable. With 2.55 turns from lock to lock, a maximum wheel diameter of 200mm, and a 90° mounting with friction brake, this system is designed for smooth and flexible steering control.
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$ 267.18
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1-2 weeks delivery time For those requiring even more cable length, the SeaStar SS13818 system offers an 18-foot cable. With smooth steering, a friction brake, and corrosion resistance, it provides dependable performance for extended boating trips.
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$ 316.13
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1-2 weeks delivery time The SeaStar SS13818/Z features an 18-foot (5.49m) cable, making it perfect for larger boats or installations that need extra length. The system includes the Seastar Light Duty Steering Helm, bezel, mounting kit, and steering cable, ensuring easy installation and smooth handling. With 2.55 turns from lock to lock and a 200mm maximum wheel diameter, it offers a 90° mounting with a friction brake for reliable performance.
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$ 271
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1-2 weeks delivery time The SeaStar SS13819 system features a 19-foot cable, offering maximum steering flexibility. This system ensures smooth operation with a friction brake and is built to resist corrosion, offering reliable control on larger vessels.
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$ 319.99
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1-2 weeks delivery time The SeaStar SS13819/Z offers a 19-foot (5.79m) cable, designed for boats requiring a longer cable for improved steering flexibility. It comes with a Seastar Light Duty Steering Helm, bezel, mounting kit, and steering cable. With 2.55 turns from lock to lock, a 200mm maximum wheel diameter, and a 90° mounting angle with friction brake, this system is ideal for larger boats and installations with extended cable needs.
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$ 274.86
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1-2 weeks delivery time The SeaStar SS13820 system provides a 20-foot cable, ideal for boaters who need the longest possible reach. It maintains smooth, responsive steering with a friction brake, corrosion-resistant construction, and a sleek design for optimal control.
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$ 323.81
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1-2 weeks delivery time The SeaStar SS13820/Z provides the longest cable option at 20 feet (6.10m), perfect for boats that need maximum flexibility for steering control. It includes the Seastar Light Duty Steering Helm, bezel, mounting kit, and the steering cable. The system supports 2.55 turns from lock to lock, a 200mm maximum wheel diameter, and a 90° mounting with a friction brake for smooth and efficient steering.
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$ 278.71
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1-2 weeks delivery time The SeaStar SS13821 is a light-duty steering system with a 21' cable, ideal for larger vessels. It features smooth, responsive steering, a friction brake for precise control, corrosion-resistant materials, and a 3/4” tapered steering shaft. This system ensures easy handling with 2.5 turns from lock-to-lock and a 90° bezel for a refined look.
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$ 327.68
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1-2 weeks delivery time The SeaStar SS13821/Z features a 21-foot (6.41m) cable and is built for light-duty applications. It includes the Seastar Light Duty Steering Helm, bezel, mounting kit, and steering cable. Designed for boats requiring longer cables, it also offers 2.55 turns from lock to lock and a 200mm maximum wheel diameter, with a 90° mounting and friction brake.
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$ 282.57
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1-2 weeks delivery time The SeaStar SS13822 system offers a 22' cable, designed for larger vessels needing maximum reach and control. The light-duty system includes a friction brake, corrosion-resistant materials, and smooth steering with 2.5 turns from lock-to-lock. It features a standard 3/4” tapered steering shaft and a sleek 90° bezel for improved aesthetics.
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$ 331.49
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1-2 weeks delivery time The SeaStar SS13822/Z is designed for boats that need a 22-foot (6.71m) cable for extended reach. It includes a Seastar Light Duty Steering Helm, bezel, mounting kit, and the steering cable. With 2.55 turns from lock to lock, a maximum wheel diameter of 200mm, and a 90° mounting angle with friction brake, this system offers enhanced maneuverability for larger vessels or installations with extended cable requirements.
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$ 286.37
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1-2 weeks delivery time The SeaStar SS13823 system features a 23' cable, providing the extended reach needed for large vessels. With a friction brake, corrosion-resistant construction, and 2.5 turns from lock-to-lock, it ensures precise control. The system includes a standard 3/4” tapered steering shaft and a 90° bezel for a refined design.
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$ 335.34
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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.