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Reactor 40 Marine Autopilots

All Marine Autopilots

11 Reactor 40 marine autopilots. Most cost $2,004 to $4,388, and half cost less than $2,250.

All filtersFilters (2)×
Control head: Included  ×Model line: Reactor 40  ×Clear all
BrandGarmin11
SteeringSteer-by-wire5Hydraulic3Kicker motor1Mechanical1
Drive in the boxNot included4Included1
Control headIncluded11Not included4
Model lineReactor 4011
PriceUnder $3,0001$2,000 & above10$2,500 & above5$4,000 & above2
Clear allShow 11 Marine Autopilots
Control head: Included  ×Model line: Reactor 40  ×11 resultsSort byRecommendedSpec scorePrice: low to highPrice: high to low
GarminSpec score 9.5

Hydraulic, Included, Included, Reactor 40

+Includes the SmartPump v2 hydraulic drive
+Includes the GHC 50 control unit
+Hydraulic steering suits hydraulic steering systems
−Requires a hydraulic steering system to operate
$4,388.99
as of 11/03/2026 23:08 PST - Details
Garmin

Kicker motor, Power, Included, Reactor 40

+Includes the GHC 50 control unit
+Kicker motor steering for power boats
+Stainless steel tilt tube included
−Designed for power boats only
$2,999.99
as of 11/03/2026 23:08 PST - Details
Garmin

Mechanical, Not included, Included, Reactor 40

+Includes the GHC 50 control unit
+Mechanical steering for cable-steered boats
+Retrofit option for existing mechanical steering
−Drive unit is not included
$2,244.36
as of 11/03/2026 23:08 PST - Details
Garmin

Steer-by-wire, Included, Reactor 40

+Includes the GHC 50 control, ready to use
+Steer-by-wire steering for direct electronic control
+Part of the Reactor 40 autopilot line
−Steer-by-wire needs compatible steering hardware
$2,792.99
as of 11/03/2026 23:08 PST - Details
Garmin

Steer-by-wire, Not included, Included, Reactor 40

+Includes the GHC 50 control unit
+Steer-by-wire steering for Volvo Penta systems
+Part of the Reactor 40 autopilot line
−Drive unit is not included
$6,599.99
as of 11/03/2026 23:08 PST - Details
Garmin

Hydraulic, Included, Reactor 40

+Includes GHC 50 instrument pack with the autopilot
+Compact design for hydraulic steering systems
+Complete hydraulic kit with control display
$1,795.49
as of 11/03/2026 23:08 PST - Details
Garmin

Not included, Included, Reactor 40

+Part of the Garmin Reactor 40 autopilot line
+Includes the GHC50 control for operating the autopilot
−Steering drive is not included with this package
$2,249.99
as of 11/03/2026 23:08 PST - Details
Garmin

Steer-by-wire, Included, Reactor 40

+Designed for Yamaha steer-by-wire systems
+Includes GHC control unit
+Plug-in fit for compatible Yamaha outboards
−Only compatible with Yamaha steer-by-wire systems
$2,004.43
as of 11/03/2026 23:08 PST - Details
Garmin

Steer-by-wire, Not included, Included, Reactor 40

+Includes the GHC 50 control unit
+Steer-by-wire steering for Yamaha Helm Master systems
+Part of the Reactor 40 autopilot line
−Drive unit is not included
$3,441.36
as of 11/03/2026 23:08 PST - Details
Garmin

Hydraulic, Included, Reactor 40

+Includes GHC 50 control unit and Shadow Drive Technology pack
+Compact design for hydraulic steering systems
+Shadow Drive technology allows manual steering override
$2,149.99
as of 11/03/2026 23:08 PST - Details

Compare specs

marine autopilotSteeringControl headModel lineSpec scorePrice
HydraulicIncludedReactor 409.5$4,388.99
as of 11/03/2026 23:08 PST - Details
Kicker motorIncludedReactor 40n/a$2,999.99
as of 11/03/2026 23:08 PST - Details
MechanicalIncludedReactor 40n/a$2,244.36
as of 11/03/2026 23:08 PST - Details
Steer-by-wireIncludedReactor 40n/a$2,792.99
as of 11/03/2026 23:08 PST - Details
Steer-by-wireIncludedReactor 40n/a$6,599.99
as of 11/03/2026 23:08 PST - Details
HydraulicIncludedReactor 40n/a$1,795.49
as of 11/03/2026 23:08 PST - Details
IncludedReactor 40n/a$2,249.99
as of 11/03/2026 23:08 PST - Details
Steer-by-wireIncludedReactor 40n/a$2,004.43
as of 11/03/2026 23:08 PST - Details
Steer-by-wireIncludedReactor 40n/a$3,441.36
as of 11/03/2026 23:08 PST - Details
HydraulicIncludedReactor 40n/a$2,149.99
as of 11/03/2026 23:08 PST - Details

Before you buy

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Popular filters

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Spec scores, pros and cons, and prices are explained in the How it works section of the About page.