SKU: 25621229833

Garmin Reactor Steer-By-Wire Corepack f/Yamaha Helm Master w/o GHC 20

Sale price$1349.99 Regular price$1499.99
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 14 - Jul 19

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Garmin Reactor Steer-By-Wire Corepack f/Yamaha Helm Master w/o GHC 20Reactor Steer By Wire Corepack for Yamaha Helm Master without GHC 20 ** Not compatible with Helm Master EX ** 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 Reactor 40 for steer by wire provides robust autopilot capabilities for Yamaha

Reactor™ Steer-By-Wire Corepack for Yamaha® Helm Master™ without GHC™ 20

** Not compatible with Helm Master EX **

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

Reactor 40 for steer-by-wire provides robust autopilot capabilities for Yamaha Helm Master systems. 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.

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 & 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.

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)
  • Yamaha Gateway
  • CCU cable
  • 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.

Specifications:

  • Steering Type: Steer-By-Wire
  • Box Dimensions: 7"H x 8"W x 12"L WT: 4.65 lbs
  • UPC: 753759207984
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: 25621229833

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 1417 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
Jason Lefebvre
Carnegie, US
★★★★★ 5
Top notch mount with high build quality
I love it when I take a chance and spend some extra money hoping for a quality product - and it actually pans out. I bought this for my 2nd gen Toyota Tacoma (2014). The install was fast. Instructions were clear. The mount is ROCK solid and has two points of articulation so I can position my phone well. I couldn't ask for a better product. The price I paid was a little steep for a mount, but if you demand quality then look no further.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 21, 2025
M
Verified Purchase
Michael
Lake Worth, US
★★★★★ 5
Must buy.
use this thing every day I combined it with a quad lock MagSafe compatible charger and I could not imagine my life without it makes charging and using Google maps so much easier. really easy install extremely sturdy and it fit perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 6, 2026
M
Verified Purchase
Mitchell
Pawtucket, US
★★★★★ 5
Perfect mount
This was the perfect fit for my car (2023 Kia Forte). It was easy to set up and it is very secure.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
J
Verified Purchase
John Murdock
Omaha, US
★★★★★ 5
Love it
Perfect for Kia forte
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 7, 2026
A
Verified Purchase
AC
Pawtucket, US
★★★★★ 5
A must have for Kia Forte owners
For years, I’ve used phone mounts with adhesive stickers, but with the Florida heat, they would only last about a week. This car phone mount for my Kia has been a game changer—fantastic magnetic strength, super functional and a great value for the money! Super recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 31, 2026

recommand products