The Garmin Reactor™ 40 Steer-by-wire Corepack for Volvo Penta® with GHC™ 20 Autopilot Instrument (PN: 010-00705-89) is a dedicated marine autopilot system custom-engineered for seamless integration with Volvo Penta Inboard Performance System (IPS) and electronic sterndrive joystick steering platforms. Driven by a solid-state 9-axis Attitude Heading Reference System (AHRS), the unit allows flexible mounting orientations while actively counteracting heavy sea pitching and rolling to minimize heading drift, course deviation, and unnecessary rudder adjustments. This complete corepack includes the dedicated GHC™ 20 helm control display—a bright, glass-bonded 4-inch color screen with a wide 170-degree viewing angle and high-contrast color schemes for crisp readability in direct sunlight or nighttime conditions. Connected over an NMEA 2000® network, the system offers quick commissioning and full access to advanced autopilot features, including heading hold, step turns, pattern turns, and Auto Guidance+™ route tracking, while sharing precise heading data across onboard Garmin chartplotters and radar overlays.
In the Box
- Reactor 40 CCU (Course Computer Unit)
- GHC™ 20 helm control display
- Volvo IPS Gateway
- Interconnect cable
- Buzzer
- NMEA 2000® drop cables (2 meters)
- NMEA 2000 power cable
- NMEA 2000 T-connectors
- Male and female terminators
- Documentation


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