Garmin Reactor 40 Mechanical/Retrofit/Solenoid Corepack w/o GHC 20
Garmin Reactor 40 Mechanical/Retrofit/Solenoid Corepack w/o GHC 20 — Product description
Why Choose the Reactor 40 for Your Vessel?
Imagine setting sail or cruising at speed while your autopilot handles the helm with pinpoint accuracy, letting you focus on the horizon, your crew, or that perfect fishing spot. The Reactor 40 Mechanical/Retrofit/Solenoid Corepack delivers exactly that—unmatched responsiveness that feels almost intuitive. Built around a solid-state 9-axis AHRS, it senses every pitch, roll, and yaw in real time, slashing heading errors and keeping your ride smooth even in choppy waters.
For skippers upgrading older systems or retrofitting boats with cable, mechanical, or solenoid steering, this corepack shines. It pairs seamlessly with your existing GRF 10 drive, supporting everything from heading holds for straight-line powerboating to wind holds and automated tacks for sailing adventures. Less rudder movement means less wear on your gear and quieter operation, saving power for those extended outings.
Effortless Setup and Superior Sea-State Handling
Getting underway shouldn't involve hours of tweaking. This system streamlines commissioning to minutes, mounting flexibly almost anywhere onboard thanks to its orientation-independent AHRS. Once calibrated, it adapts dynamically to waves and wind shifts, maintaining course with minimal deviation. Boaters report it outperforms older hydraulic setups in rough conditions, providing that stable platform for scanning sonar or trimming sails.
Enhance it further with optional Shadow Drive on hydraulic tie-ins—it senses wheel turns and instantly hands control back to you, then resumes autopilot when you're steady. Pair with compatible chartplotters for trolling patterns, man-overboard searches, or even Auto Guidance paths that steer you effortlessly toward waypoints.
Core Specifications at a Glance
| Component | Dimensions |
|---|---|
| CCU (Course Computer Unit) | 4.3" x 4.4" x 1.9" (10.9 x 11.2 x 4.8 cm) |
| ECU (Electronic Control Unit) | 6.6" x 4.6" x 2.1" (16.8 x 11.7 x 5.3 cm) |
| Specification | Details |
|---|---|
| Supply Voltage | 10V to 30V |
| Operating Temperature | -15°C to 60°C (5°F to 140°F) |
| Max Sustained Motor Current | 15A |
| Max Instantaneous Motor Current | 40A |
| Max Clutch Current | 2.5A (relay needed for higher draws) |
Everything You Need to Get Started
- Reactor 40 CCU
- ECU
- ECU power cable
- Interconnect cable
- Buzzer for alerts
- NMEA 2000 drop cables (2m)
- NMEA 2000 T-connectors
- Male and female terminators
- Full documentation
Note: Drive unit and GHC display sold separately to match your setup.
Pro Tips for Peak Performance
Position the CCU away from magnetic interference like speakers or engines for best AHRS accuracy. Regularly check NMEA connections for corrosion in saltwater environments, and use the built-in diagnostics via your chartplotter to stay ahead of issues. For sailboats, enable wind hold early to master those long upwind legs without fatigue.
Reactor 40 Mechanical/Retrofit/Solenoid Corepack without GHC 20
The Most Responsive Autopilot System on the Water
- Solid-state 9-axis Attitude Heading Reference System (AHRS)
- Minimizes heading error, course deviation, rudder movement and power consumption while providing a comfortable ride
- Minimal commissioning and calibration
- Supports heading hold, wind hold, step turns and tack/jibe modes
With a complete package designed for powerboats and sailboats, Garmin brings an advanced marine technology to the boating public that was once only available for commercial boats. The Reactor 40 autopilot series is simply the most responsive autopilot system we have ever offered.
Reactor 40 autopilots are very versatile. Both powerboat and sailing features are available in all corepacks, including heading hold, wind hold, tack/jibe, step turns and more; simply pick the autopilot that's compatible with your existing steering system. If you don't see a compatible Reactor 40, you'll find the Reactor 40 mechanical/retrofit/solenoid is compatible with a wide variety of steering systems, whether hydraulic, cable drive, mechanical and solenoid. Just pair GRF 10 with your drive system already on board.
The Reactor 40 mechanical/retrofit/solenoid autopilot corepack is ideal for sailboats and powerboats with direct or cable-actuated steering systems. This Reactor 40 below-deck autopilot system gives captains that extra set of hands they need so you can safely attend to your sails, lines, winches and radios, without worry. With its solid-state 9-axis AHRS, Reactor 40 mounts anywhere, in any orientation and requires minimal commissioning.
Solid-state 9-axis AHRS
With its advanced solid-state 9-axis AHRS, you can mount Reactor 40 nearly anywhere, in any orientation. In addition, this new system greatly minimizes heading error, course deviation, rudder movement and power consumption while providing a comfortable ride for all on board.
Reacts to Conditions
This amazing autopilot actually reacts to the sea to hold your course. Even when the boat is pitching and rolling, you can remain confident that the Reactor 40 autopilot will keep you on your desired course.
Minimal Commissioning and Calibration
All autopilots require commissioning and calibration all of them. We know you just want to get on the water, so we made this process as fast and easy as possible. That's the power of simple.
Full Integration with Garmin Chartplotters
Combined with a compatible Garmin networked chartplotter, you can have full control of Reactor 40 from wherever you are on the boat. In addition to holding its course in virtually all weather and wind conditions, the system can smoothly perform a variety of preprogrammed trolling and search procedures. Plus, with a compatible Garmin networked chartplotter and BlueChart g2 Vision charts (sold separately), you gain optional features such as Auto Guidance, which automatically steers GPS paths.
Stay in Control with Shadow Drive Technology
On hydraulic installations, the Reactor 40 mechanical/retrofit/solenoid autopilot corepack can add optional patented Shadow Drive technology. This gives you the security of knowing you maintain control, even when the autopilot is engaged. The Shadow Drive system automatically disengages the autopilot if the helm is turned, giving you the freedom to maneuver the boat. The autopilot automatically re-engages when you hold a steady course.
Choose from 3 Class Drives
Reactor 40 is available with 3 linear drives (sold separately) capable of driving many different steering systems on most midsize to large vessels (depending on the particular installation). All Garmin linear drives include built-in rudder feedback sensing.
- Class A Drive Unit up to 28,500 lbs of displacement
- Class B Compact Drive Unit up to 48,400 lbs of displacement
- Class B Drive Unit up to 79,000 lbs of displacement
Add Even More Peace of Mind
Add an optional GRF 10 rudder feedback sensor, and you can further enhance the performance of your Reactor 40 autopilot.
Auto Guidance is for planning purposes only and does not replace safe navigation operations
What's In The Box?
- Reactor 40 CCU (Course Computer Unit)
- ECU (Electronic Control Unit)
- ECU power cable
- Interconnect cable
- Buzzer
- NMEA 2000 drop cables (2 meters)
- NMEA 2000 T-connectors
- Male and female terminators
- Documentation
Garmiin Reactor™ 40 Mechanical/Retrofit/Solenoid Corepack Without GHC Control
Model: 010-00705-48- Solid-state 9-axis Attitude Heading Reference System (AHRS)
- Minimizes heading error, course deviation, rudder movement and power consumption while providing a comfortable ride
- Minimal commissioning and calibration
- Supports heading hold, wind hold, step turns and tack/jibe modes
With a complete package designed for powerboats and sailboats, Garmin brings an advanced marine technology to the boating public that was once only available for commercial boats. The Reactor 40 autopilot series is simply the most responsive autopilot system we have ever offered.
Reactor 40 autopilots are very versatile. Both powerboat and sailing features are available in all corepacks, including heading hold, wind hold, tack/jibe, step turns and more; simply pick the autopilot that’s compatible with your existing steering system. If you don’t see a compatible Reactor 40, you’ll find the Reactor 40 mechanical/retrofit/solenoid is compatible with a wide variety of steering systems, whether hydraulic, cable drive, mechanical and solenoid. Just pair GRF™ 10 with your drive system already on board.
The Reactor 40 mechanical/retrofit/solenoid autopilot corepack is ideal for sailboats and powerboats with direct or cable-actuated steering systems. This Reactor 40 below-deck autopilot system gives captains that "extra set of hands" they need so you can safely attend to your sails, lines, winches and radios, without worry. With its solid-state 9-axis AHRS, Reactor 40 mounts anywhere, in any orientation and requires minimal commissioning.
With its advanced solid-state 9-axis AHRS, you can mount Reactor 40 nearly anywhere, in any orientation. In addition, this new system greatly minimizes heading error, course deviation, rudder movement and power consumption while providing a comfortable ride for all on board.
This amazing autopilot actually reacts to the sea to hold your course. Even when the boat is pitching and rolling, you can remain confident that the Reactor 40 autopilot will keep you on your desired course.
All autopilots require commissioning and calibration — all of them. We know you just want to get on the water, so we made this process as fast and easy as possible. That’s the power of simple.
Combined with a compatible Garmin networked chartplotter, you can have full control of Reactor 40 from wherever you are on the boat. In addition to holding its course in virtually all weather and wind conditions, the system can smoothly perform a variety of preprogrammed trolling and search procedures. Plus, with a compatible Garmin networked chartplotter and BlueChart® g2 Vision® charts (sold separately), you gain optional features such as Auto Guidance , which automatically steers GPS paths.
On hydraulic installations, the Reactor 40 mechanical/retrofit/solenoid autopilot corepack can add optional patented Shadow Drive technology. This gives you the security of knowing you maintain control, even when the autopilot is engaged. The Shadow Drive system automatically disengages the autopilot if the helm is turned, giving you the freedom to maneuver the boat. The autopilot automatically re-engages when you hold a steady course.
Reactor 40 is available with 3 linear drives (sold separately) capable of driving many different steering systems on most midsize to large vessels (depending on the particular installation). All Garmin linear drives include built in rudder feedback sensing.
Class A Drive Unit — up to 28,500 lbs of displacement
Class B Compact Drive Unit — up to 48,400 lbs of displacement
Class B Drive Unit — up to 79,000 lbs of displacement
Add an optional GRF 10 rudder feedback sensor, and you can further enhance the performance of your Reactor 40 autopilot.
1Auto Guidance is for planning purposes only and does not replace safe navigation operations.
Specifications| CCU dimensions | 4.3 " x 4.4 " x 1.9 " (10.9 x 11.2 x 4.8 cm) |
| ECU dimensions | 6.6 " x 4.6 " x 2.1 " (16.8 x 11.7 x 5.3 cm) |
| Supply voltage | 10 V to 30 V |
| Operating temperature | -15° C to 60 C° (5° F to 140° F) |
| Maximum sustained motor current | 15A |
| Maximum instantaneous motor current | 40A |
| Maximum clutch current | 2.5A (for drives requiring higher current than 2.5A, a relay needs to be added to the clutch circuit) |
What's in the Box:
- Reactor 40 CCU (Course Computer Unit)
- Documentation
- ECU (Electronic Control Unit)
- ECU power cable
- Interconnect cable
- Buzzer
- NMEA 2000® drop cables (2 meters)
- NMEA 2000 T-connectors
- Male and female terminators
SKU: NVN-70460
MPN: 010-00705-48
UPC: 753759207946
Technical specifications
| Brand | Garmin |
| Model | Garmin Reactor 40 Mechanical/Retrofit/Solenoid Corepack w/o GHC 20 |
| SKU / MFR# | 70460 |
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