Garmin Reactor 40 Autopilot Steer-By-Wire Standard Corepack with GHC 50 Control is the modern autopilot solution your boat has been waiting for. Built around a solid-state 9-axis AHRS, this corepack lets you mount the system almost anywhere and still deliver precise, responsive steering—even as you pitch or roll with the seas.
Calibration is fast and easy, so you’re on the water enjoying superior autonomy in minutes. When paired with a compatible Garmin chartplotter, you can control the autopilot from anywhere on your boat, and the dedicated GHC 50 autopilot instrument adds a touchscreen helm display that shares data with Garmin MFDs and other devices.
Why upgrade to Reactor 40
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Steer-by-wire corepack delivers precise, hands-free steering control
- Advanced solid-state 9-axis AHRS enables flexible mounting and orientation
- Automatically reacts to sea conditions to hold your course in rough conditions
- Low power consumption with minimized heading error for extended performance
- Control from anywhere on board via a compatible Garmin chartplotter or the GHC 50
- Dedicated touchscreen helm display with seamless data sharing across Garmin devices
- Compatible with SeaStar Optimus, Yanmar ZT370 sterndrive electronic power steering, and ZF 2800 Pod drives
- Powerboat and sailing features: heading hold, step turns, plus wind hold and tack/jibe when used with a wind sensor (sold separately)
- Includes follow route and Auto Guidance+ for planning assistance (Auto Guidance is for planning and does not replace safe navigation)
Compatibility
Requires a compatible Garmin chartplotter. Works with SeaStar Optimus systems, Yanmar Marine ZT370 sterndrive electronic power steering, and ZF 2800 Pod drives.
In the box
- Reactor 40 CCU (Course Computer Unit)
- GHC 50 helm control display
- CCU cable
- Buzzer
- NMEA 2000 drop cables (2 meters)
- NMEA 2000 power cable
- NMEA 2000 T-connectors (male and female terminators)
- Documentation
Specifications
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CCU Dimensions: 3 19/32" diameter (91.4 mm); Weight: 5.6 oz (159 g)
- Temperature range: 5°F to 131°F (-15°C to 55°C)
- Case material: Fully gasketed, high-impact plastic; IPX7 waterproof
- CCU cable length: 9.5 ft (3 m)
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Buzzer/Alarm Dimensions: 29/32" x 1" (23 mm x 25 mm); Weight: 2.4 oz (68 g)
- Temperature range: 5°F to 131°F (-15°C to 55°C)
- Cable length: 10 ft (3.0 m)
Note: Auto Guidance is for planning purposes only and does not replace safe navigation operations.
| CCU Specifications |
| Dimensions |
3 19/32" diameter (91.4 mm) |
| Weight |
5.6 oz (159 g) |
| Temperature range |
From 5°F to 131°F (from -15°C to 55°C) |
| Case material |
Fully gasketed, high-impact plastic, waterproof to IEC 529 IPX7 standards |
| CCU cable length |
9.5 ft (3 m) |
| NMEA 2000 power input |
9-16V |
| NMEA 2000 LEN |
3 (150 mA) |
| Buzzer/Alarm Specifications |
| Dimensions (L Diameter) |
29/32" 1" (23 mm 25 mm) |
| Weight |
2.4 oz (68 g) |
| Temperature range |
from 5°F to 131°F (from -15°C to 55°C) |
| Cable length |
10 ft (3.0 m) |
