SKU: 39127403271

Garmin Reactor™ 40 Hydraulic Autopilot w-o GHC™ 20

Sale price$810.00 Regular price$900.00
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Description

Garmin Reactor™ 40 Hydraulic Autopilot w-o GHC™ 20Reactor 40 Hydraulic Autopilot without GHC 20 ** Not designed to be used with Garmin Smartpump ** 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 Shadow Drive technology keeps you in control, even when autopilot is engaged With a complete

Reactor™ 40 Hydraulic Autopilot without GHC™ 20

** Not designed to be used with Garmin Smartpump **

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
  • Shadow Drive™ technology keeps you in control, even when autopilot is engaged

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.

The Reactor 40 hydraulic autopilot corepack is ideal for all types of hydraulically steered powerboats — inboards, outboards, stern drives and diesels — or hydraulically steered sailboats. This robust unit gives powerboat users an easy-to-use autopilot system to rely upon for navigation. With its solid-state 9-axis AHRS, Reactor 40 mounts nearly anywhere, in any orientation and requires minimal commissioning. Our patented Shadow Drive technology gives boaters the security of knowing they maintain control, even when relying upon the autopilot.

Solid-state 9-axis AHRS
With its advanced solid-state 9-axis 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
The Reactor 40 autopilot features 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.

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
  • Shadow Drive
  • Buzzer
  • NMEA 2000® drop cables (2 meters)
  • NMEA 2000 power cable
  • 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.


Product : GARMIN REACTOR40 HYDRAULIC AUTOPILOT W/O GHC 20
Manufacturer : Garmin
Manufacturer Part No : 010-00705-21
Product : GARMIN REACTOR40 HYDRAULIC AUTOPILOT W/O GHC 20
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 39127403271

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Megan
Port Orchard, US
★★★★★ 5
Good purchase!!
Color: Blue(one-sided Cooling), Size: 20"x54"(Pack of 1)
It’s so comfortable!! Perfect cooling, soft to the touch, perfect length (I’m 5’4) it’s fluffy and firm. There is a little weight to it but still very nice!!
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Reviewed in the United States on April 30, 2026
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Lisa H.
Draper, US
★★★★★ 5
Great for hot 🥵 sleepers!!
Color: Blue(one-sided Cooling), Size: 20"x54"(Pack of 1)
I absolutely love this body pillow!!! It is a nice looking pillow, silky on the cooling side and comfy on the bamboo side. The size is perfect and it really is cooling for someone like me that is menopausal and sleeps very hot 🥵🥵🥵 It keeps me comfortable all night.. I like the amount of fill inside the pillow. As a side sleeper with back pain the thickness of the memory foam keeps my spine aligned perfectly and doesn't flatten out. Best purchase I've made for cooling comfort at a decent price point!!
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Reviewed in the United States on March 2, 2026
T
Verified Purchase
Tina B
San Leandro, US
★★★★★ 5
Nice and adjustable by removing stuffing
Color: Blue(one-sided Cooling), Size: 20"x54"(Pack of 1), Color: Blue(one-sided Cooling), Size: 20"x54"(Pack of 1)
I really like this pillow. It fluffs up huge, and you can throw it in the dryer to fluff it up faster. It’s soft, cozy, and cooling with the cool side of the cover. What I really love about it though is you can remove stuffing easily to adjust the size and weight. It’s pretty big and heavy. It was a bit too puffy and heavy for my taste so I removed a garbage bags worth of stuffing and now it’s perfect!! Great body pillow I totally recommend.
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Reviewed in the United States on November 21, 2025
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Peaches🍑
Bozeman, US
★★★★★ 4
Nice Firm
Color: Blue(one-sided Cooling), Size: 20"x54"(Pack of 1)
So I don’t love this body pillow but I do like it. This is a great pillow for anything the only downside is that it’s super heavy. It’s not something you would throw around the house that’s for sure but it does do its job when I’m sleeping and need something in between my legs my knees. It’s nice and firm not floppy, it’s perfect for a body. It’s perfect height, I’m 5’4 so it is perfect length wise. If you’re looking for something fluffy and lightweight I wouldn’t suggest this pillow but if you’re looking for something you can use for say menstrual cramps or a bad back and simply just to have between your legs than this is the pillow you want. I recommend it to anyone who doesn’t mind a little weight while making your bed. I give it 8:10.
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Reviewed in the United States on August 13, 2025
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Jennifer C
Fort Morgan, US
★★★★★ 5
Love this pillow!
Color: Blue(one-sided Cooling), Size: 20"x54"(Pack of 1)
Love this pillow. I bought 2. No weird smell and the cover is half cooling and half bamboo. It is also removable so that it can be washed. The inner pillow insert has a thin permanent cover on it to keep the shredded memory foam enclosed, this is standard compared to other memory foam pillows I've bought in the past. I got them on a used like new discount, and they were still vaccum sealed and truly like new. I couldn't be happier with these pillows, I am so glad I got 2.
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Reviewed in the United States on May 20, 2026

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