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Type 2 Linear Drive Units

Mechanical linear autopilot drives for mid to large sized boats

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Type 2 Linear Drive Units

Type 2 Linear Drives Overview

Mechanical linear drives provide powerful thrust, fast hard-over times and quiet operation.

Mounted below-decks, the linear drive moves the rudder directly by pushing on the boat's tiller arm or rudder quadrant. When the autopilot is disengaged, the drive's electro-mechanical clutch releases to allow smooth, unobstructed hand-steering.  

The fixed end of the linear drive is secured to the boat's structural members, while the dynamic end attaches to the rudder stock or quadrant using an independent tiller arm. Accessory fittings from your steering system manufacturer may be required to complete your installation.   

Raymarine offers linear drives in multiple sizes and power configurations to fit a wide array of vessels.

Type 2 Linear Drive Unit Models

Available in 12 or 24-volt power, with short or long stroke length.

12 Volt, Type 2, Short Stroke Linear Drive SKU: M81131

12 Volt, Type 2, Short Stroke Linear Drive


  • For boats up to 15,000 kg (33,000 lbs.) displacement

  • Maximum stroke 300mm (12-inches)

  • For 12-Volt DC Systems

  • Works with ACU-400

24 Volt, Type 2, Short Stroke Linear Drive SKU: M81133

24 Volt, Type 2, Short Stroke Linear Drive


  • For boats up to 15,000 kg (33,000 lbs.) displacement

  • Maximum stroke 300mm (12-inches)

  • For 24-Volt DC Systems

  • Works with ACU-400

12 Volt, Type 2, Long Stroke Linear Drive SKU: M81132

12 Volt, Type 2, Long Stroke Linear Drive


  • For boats up to 20,000 kg (44,000 lbs.) displacement

  • Maximum stroke 400mm (16-inches)

  • For 12-Volt DC Systems

  • Works with ACU-400

24 volt, Type 2, Long Stroke Linear Drive SKU: M81134

24 volt, Type 2, Long Stroke Linear Drive


  • For boats up to 20,000 kg (44,000 lbs.) displacement

  • Maximum stroke 400mm (16-inches)

  • For 24-Volt DC Systems

  • Works with ACU-400