Garmin

Garmin Class B Drive Unit for GHP 12 Autopilot - Hydraulic Linear

Regular price $3,599.99 USD

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Garmin Class B Hydraulic Linear Drive Unit for GHP 12 Autopilot - full product view
$3,599.99 USD
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Garmin Class B Drive Unit for GHP 12 Autopilot - Hydraulic Linear


Description

The Garmin Class B Drive Unit is a high-capacity hydraulic linear drive designed to work seamlessly with the Reactor 40 Mechanical, Retrofit, and Solenoid Corepacks, giving your sailboat's autopilot system the muscle it needs for precise, reliable steering control. Built for larger sailboats, this unit handles vessels with up to 79,000 lbs of displacement, making it one of the most capable drive units in Garmin's GHP lineup.

Engineered with a robust hydraulic linear mechanism and a maximum thrust of 2,380 lbs, this drive unit delivers confident, consistent performance even in demanding offshore conditions. Whether you're passage-making across open water or racing in heavy seas, the Class B Drive Unit keeps your heading locked in with minimal fuss and maximum reliability.


Key Features

  • Drive Unit Type: Hydraulic linear - designed for larger sailboat steering systems requiring high thrust output.
  • Maximum Thrust - 2,380 lbs (1,080 kg): Delivers the force needed to handle heavy-displacement sailboats up to 79,000 lbs.
  • Stroke Length - 12" (303 mm): Provides sufficient travel for effective rudder control across a range of steering setups.
  • Wide Voltage Range - 10V to 30V: Compatible with both 12V and 24V electrical systems for flexible installation.
  • Reactor 40 Compatible: Works with the GHP Reactor Mechanical, Retrofit, and Solenoid Corepacks for a complete autopilot solution.
  • Low Power Draw: Average clutch current of only 1 Amp and motor current of 3-4 Amps at 12V - easy on your boat's electrical system.
  • Compact Motor Dimensions - 8.8" x 3" x 3.5": Designed to fit in tight engine room or below-deck spaces without compromising performance.
  • Wide Operating Temperature - -15 deg C to 60 deg C (5 deg F to 140 deg F): Reliable operation in cold northern passages or hot tropical climates.
  • Integrated Reservoir: Self-contained hydraulic reservoir (7.9" x 6.1" x 3.3") keeps the system tidy and maintenance-friendly.

Shipping

Ships free! Please email us at service@omahasportsandgames.com for a delivery ETA or to confirm shipping details.


What's Included

  • Class B Hydraulic Linear Drive Unit (motor, cylinder, and reservoir)

Why You'll Love It

Garmin has built a reputation for producing autopilot systems that serious sailors trust on bluewater passages and coastal cruising alike, and the Class B Drive Unit is a cornerstone of that reliability. Designed specifically for larger displacement sailboats, this unit gives you the confidence that your autopilot can handle whatever conditions the ocean throws at it. The hydraulic linear design ensures smooth, consistent rudder response - no jerky corrections, just steady, precise heading control.

Installation is straightforward for experienced marine technicians, and compatibility with the full Reactor 40 Corepack lineup means you're investing in a system that integrates cleanly with Garmin's broader marine electronics ecosystem. For bluewater sailors and performance cruisers who demand dependable autopilot performance on large sailboats, the Garmin Class B Drive Unit is a proven, purpose-built solution.


Product Specifications
Part Number 010-11573-00
Drive Unit Type Hydraulic linear
Stroke Length 12" (303 mm)
Maximum Thrust 2,380 lb (1,080 kg)
Motor Dimensions (WxHxD) 8.8" x 3" x 3.5" (223 x 76 x 88 mm)
Cylinder Dimensions (centered, WxHxD) 32.7" x 4.1" x 6.3" (830 x 105 x 160 mm)
Reservoir Dimensions (WxHxD) 7.9" x 6.1" x 3.3" (200 x 155 x 85 mm)
Supply Voltage 10V to 30V
Average Clutch Current at 12V 1 Amp
Average Motor Current at 12V 3-4 Amps
Operating Temperature -15 deg C to 60 deg C (5 deg F to 140 deg F)
Compatible Corepacks GHP Reactor Mechanical/Retrofit/Solenoid Corepack; Reactor 40 Mechanical/Retrofit/Solenoid Corepack
Maximum Vessel Displacement 79,000 lbs

FAQ

Which Garmin corepacks is this drive unit compatible with?

The Class B Drive Unit is compatible with the GHP Reactor Mechanical/Retrofit/Solenoid Corepack and the Reactor 40 Mechanical/Retrofit/Solenoid Corepack. It is not a standalone autopilot - it works as the mechanical actuator paired with those Garmin corepacks.

What size sailboat is the Class B Drive Unit designed for?

This drive unit is designed for larger sailboats with up to 79,000 lbs of displacement. If your vessel is smaller or lighter, Garmin offers other drive units in their GHP lineup that may be better suited to your boat.

Is this drive unit compatible with 24V electrical systems?

Yes. The Class B Drive Unit supports a supply voltage range of 10V to 30V, making it fully compatible with both 12V and 24V marine electrical systems.

Does this unit require professional installation?

While technically capable DIYers can install this unit, professional installation by a certified marine electronics technician is strongly recommended. Hydraulic autopilot drive units involve integration with your boat's steering system, hydraulic lines, and electrical system, and improper installation can affect safety at sea.

Does the Class B Drive Unit include the corepack or chartplotter?

No. This listing is for the Class B Drive Unit only. The Reactor 40 Corepack and any compatible Garmin chartplotter or autopilot controller are sold separately. Please contact us at service@omahasportsandgames.com if you need help building out a complete Garmin autopilot system.

Product specifications table
Specification name Specification Value
Item condition New
Item material Metal, Plastic
Watercraft type Boat

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