Description
Reactor™ 40 Mechanical/Retrofit/Solenoid Corepack without Display
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 Guidance¹, 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.
¹Auto 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
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
Specifications:
- Steering Type: Cable/Solenoid
- Box Dimensions: 9"H x 9"W x 12"L WT: 6.5 lbs
- UPC: 753759207946
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Refund Policy
Easy Returns
We've taken out the hassle of returning an item so you can shop with confidence. If you need to return an item, we'll provide you with a pre-paid UPS return label that you can print at home. The cost for using the label will be calculated and deducted from your refund.
To start a return, please contact us at sales@theyachtrigger.com. Items sent back to us without first requesting a return will not be accepted.
30-Day Return Policy
We have a 30-day return policy, meaning you have 30 days after receiving your item to request a return or exchange.
Eligibility for Returns
To be eligible for a return, your item must be in the same condition that you received it—unworn or unused, including tags, instruction manuals, warranty cards, and in its original packaging. You’ll also need the receipt or proof of purchase.
We reserve the right to refuse returns or assess additional fees at our discretion if:
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The merchandise is missing parts
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The item is not in new condition
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The return is beyond the accepted return dates
Return Shipping & Restocking Fees
Customers are responsible for return shipping.
If you request The Yacht Rigger to provide a shipping tag, the shipping cost will be deducted from your refund. No international return shipping labels will be provided.
A 3% restocking fee will apply.
No returns on final sale items.
Damages and Warranties
Please inspect your order upon receipt and contact us immediately if the item is defective, damaged, or if you received the wrong item.
Most items we sell are covered by manufacturers' warranties. If you experience difficulty with a product, please contact the appropriate manufacturer for assistance and troubleshooting help, or email us at sales@theyachtrigger.com. If your order was received via freight truck, you must notify us within 5 days.
Exceptions / Non-Returnable Items
Certain types of items cannot be returned, such as custom products and special orders. This includes cut line, wire, rope, and similar items that are customized to length. We also do not accept returns for hazardous materials, flammable liquids, or gases. Unfortunately, we cannot accept returns on sale items or gift cards.
Exchanges
The fastest way to ensure you get what you want is to request a return of the item you have. Once the return is accepted, you can make a separate purchase for the new item to ensure it is in stock.
European Union 14-Day Cooling Off Period
If the merchandise is being shipped to the European Union, you have the right to cancel or return your order within 14 days, for any reason and without justification. As above, your item must be in the same condition that you received it—unworn or unused, with tags, instruction manuals, warranty cards, and in its original packaging. You’ll also need the receipt or proof of purchase.
Refunds
We will notify you once we’ve received and inspected your return and inform you if the refund was approved. When processing a refund, no additional transaction fee is incurred; however, the original credit card transaction fee is not refunded.
If approved, you’ll automatically be refunded to your original payment method within 10 business days. Please allow some time for your bank or credit card company to process and post the refund. If more than 15 business days have passed since we’ve approved your return, please contact us at sales@theyachtrigger.com.
Return Policy Abuse
We reserve the right to refuse service to anyone suspected of abusing any policy of The Yacht Rigger.





