Garmin Reactor 40 Autopilot for Volvo Penta with GHC50 Control is a steer-by-wire autopilot designed for Volvo Penta inboard performance systems and sterndrive joystick setups. It combines precise navigation control with Garmin’s onboard ecosystem for confident, hands-free sailing.
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Steer-by-wire corepack for Volvo Penta: A purpose-built solution for Volvo Penta inboard systems and sterndrive joystick configurations, delivering precise autopilot control.
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9-axis AHRS: Solid-state attitude and heading reference enables flexible mounting in any orientation while reliably sensing boat motion.
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Low power consumption: Efficient operation helps minimize heading drift and extend performance on long passages.
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Minimized heading error: Design emphasis on stable course keeping to reduce drift and improve track quality.
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Fast commissioning and calibration: Quick setup so you’re on the water and on course with minimal downtime.
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Control & Compatibility: Control the autopilot from compatible Garmin chartplotters or the GHC50 helm control display; works with Reactor autopilot remotes and select quatix marine smartwatches (requires a compatible Garmin chartplotter or GHC50 instrument).
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Performance & automation: When connected to a compatible Garmin chartplotter, features include heading hold, step turns, wind hold and tack/jibe (with wind sensor sold separately), plus follow route and Auto Guidance+ for planning assistance. Auto Guidance is for planning purposes and does not replace safe navigation operations.
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Rugged design & environmental resilience: Fully gasketed high-impact plastic enclosure with IPX7 waterproof rating and broad temperature tolerance (5°F to 131°F / -15°C to 55°C).
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What’s in the Box: Reactor 40 CCU (Course Computer Unit), GHC™ 50 helm control display, Volvo IPS gateway, interconnect cable, buzzer, NMEA 2000® drop cables (2 m), NMEA 2000 power cable, NMEA 2000 T-connectors (male and female terminators), Documentation.
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CCU & Gateway specifications: CCU diameter 3 19/32" (91.4 mm); CCU 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; CCU cable length 9.5 ft (3 m). Autopilot Gateway dimensions 5 1/8" x 2 3/8" x 1" (130 mm x 60 mm x 25 mm); Gateway weight <1 oz (28 g).
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Buzzer/Alarm specifications: Dimensions (L Diameter) 29/32" to 1" (23 mm to 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).
With Reactor 40, you gain precise course keeping even in challenging sea conditions, plus the flexibility to control and monitor your autopilot across Garmin’s chartplotter ecosystem. The combination of the 9-axis AHRS, low power use, and quick calibration helps you enjoy more time on the water with fewer setup hurdles.
| 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) |
| Autopilot Gateway Specifications |
| Dimensions (L Diameter) |
5 1/8" 2 3/8" x 1" (130 mm 60 mm x 25 mm) |
| Weight |
Less than 1 oz (28 g) |
