Garmin Reactor 40 Yamaha Helm Master, GHC 50

Last updated: November 9, 2026

Garmin Reactor 40 Yamaha Helm Master, GHC 50
3.0/5#4 of 4 in steer-by-wire autopilots
3.0

For boats with Yamaha Helm Master steering.

  • Steer-by-wireSteering
  • NoDrive in pack
  • YesNMEA 2000
Check price at Amazon$3,449.99

Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros
  • Made for Yamaha Helm Master joystick systems
  • GHC 50 touchscreen included
  • Works with a compatible Garmin chartplotter
Cons
  • Useless without Yamaha Helm Master
  • Listing publishes few specs

The Garmin Reactor 40 family

Every Garmin Reactor 40 model we rank, smallest first. Ratings compare each against its own steering type.

ModelSteeringRatingPrice
Garmin Compact Reactor 40 Hydraulic, GHC 50Hydraulic3.1/5$1,799.99
Garmin Reactor 40 Hydraulic Corepack, GHC 50Hydraulic3.2/5$4,399.99
Garmin Reactor 40 Mechanical Corepack, GHC 50Mechanical3.2/5$2,249.99
Garmin Reactor 40 Steer-by-Wire, GHC 50Steer-by-wire3.1/5$2,799.99
Garmin Reactor 40 Yamaha Helm Master, GHC 50 (this one)Steer-by-wire3.0/5$3,449.99
Garmin Reactor 40 Kicker Autopilot, GHC 50Kicker motor3.3/5$2,999.99

How it scores

The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its steering type. How we rank explains each one.

Specifications

Model number010-02794-04
Capability
Steering typeSteer-by-wire
Pack typeCore pack
In the pack
ContentsReactor 40 steer-by-wire corepack for Yamaha Helm Master with GHC 50 instrument
Control headGHC 50 touchscreen
Control head includedYes
Drive or pump includedNo
Heading sensorSolid-state 9-axis AHRS
Electrical
Supply voltage12 V
NMEA 2000 / SeaTalk ngYes
Support
Warranty1 year
Released2022-06

Alternatives in this steering type

Compare

Compare the Garmin Reactor 40 Yamaha Helm Master, GHC 50 with any other marine autopilot →

More from Garmin: every Garmin product ranked.