Description
The Garmin Compact Reactor 40 Hydraulic Autopilot with GHC 50 and Shadow Drive is designed for compatible smaller powerboats with hydraulic steering. Unlike a corepack that requires a separately selected pump, this package includes the Compact Reactor 40 control system and a 1.0-liter hydraulic pump, along with the GHC 50 touchscreen autopilot instrument and Shadow Drive helm-override technology.
Main Features
- Compact Reactor 40 hydraulic autopilot for compatible smaller boats
- Includes 1.0-liter hydraulic pump
- Includes GHC 50 touchscreen autopilot instrument
- Includes Shadow Drive technology for immediate manual helm takeover
- NMEA 2000 integration with compatible Garmin chartplotters and marine instruments
Designed for Smaller Hydraulic Systems
This Compact Reactor package is positioned as an entry-level autopilot for selected smaller hydraulic-steering installations, particularly single-engine outboard applications. It is not the correct choice for every hydraulic system, power-assist installation or high-demand steering application. Confirm engine configuration, steering-cylinder volume, vessel size, deadrise and intended use against Garmin’s autopilot compatibility guidance before ordering.
Course Keeping and Control
The Reactor 40 heading system senses vessel motion and continuously adjusts steering to maintain course. The GHC 50 provides dedicated autopilot controls at the helm, while compatible Garmin chartplotters can exchange navigation commands over NMEA 2000.
Shadow Drive
Shadow Drive lets the operator take manual control by turning the helm; the autopilot disengages so the boat can be steered immediately. When conditions permit, autopilot control can then be re-engaged.
What’s in the Box
The package includes the Compact Reactor 40 autopilot components, 1.0-liter hydraulic pump, GHC 50 autopilot instrument, Shadow Drive components, system cabling/network hardware and documentation. Vessel-specific hydraulic hoses and fittings may be required separately.
Specifications
- System: Compact Reactor 40 Hydraulic Autopilot
- Pump: 1.0-liter hydraulic pump included
- Autopilot instrument: GHC 50 included
- Helm override: Shadow Drive technology
- Network: NMEA 2000
- Application: Compatible smaller hydraulic-steering powerboats
- Part number: 010-02794-08

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