Octopus Autopilot Pump Type 2 12V 18CI Cylinder

This Octopus Autopilot Pump Type 2 is an adjustable reversing pump, now built with an ORB port connection manifold for a cleaner hydraulic hookup than earlier versions offered. Reversing pumps like this one are used when hydraulic steering is fitted on boats up to 65 feet LOA, though the exact limit depends on the rudder torque the boat actually generates. That torque-dependent range means the right pump size varies boat to boat even within the same overall length.

The pump is switched on by the autopilot computer and makes a steering correction left or right based on the direction the pump motor rotates. Its motor is a permanent magnet type, and reversing direction is accomplished simply by reversing the motor's polarity. That electrical simplicity avoids a more complex mechanical valve arrangement that would add another point of failure.

This version is rated for 12V systems and sized for cylinders up to 18 cubic inches, a common range for mid-size boats within the pump's overall 65-foot LOA ceiling. Matching pump size correctly to the steering cylinder's actual displacement is essential for getting proper response and rudder authority from the autopilot. A mismatched pump can leave the autopilot sluggish or unable to hold a course accurately in a real seaway. Shop more marine networking.

• Adjustable reversing pump with ORB manifold
• For hydraulic steering on boats up to 65 feet LOA
• Permanent magnet motor, reverses by polarity
• 12V, cylinders up to 18 cubic inches