

Designed for boats less than 25’ long, this entry-level, Compact Reactor 40 hydraulic autopilot gives you the extra hand you need, so you can explore paradise worry-free.
This Reactor 40 hydraulic autopilot is the perfect companion for your hydraulically steered system. | Yes, it features a solid-state 9-axis AHRS. And yes, that means you can mount it nearly anywhere. | Even when you’re pitching or rolling, this autopilot reacts to sea conditions to keep you on course. | You just want to get on the water, so we made calibration fast and easy. That’s the power of simple. | Combine with your compatible Garmin chartplotter, and control your autopilot — from anywhere on your boat. | Want more? The optional GHC™ 50 autopilot instrument enhances your autopilot experience. |
COREPACK COMPATIBILITYThis corepack is an ideal autopilot solution for single-engine outboard boats that are less than 25’ long1. It provides relief from manually holding the wheel to maintain course, especially when cruising at moderate to high speeds2. |
SOLID-STATE 9-AXIS AHRSWith its advanced solid-state 9-axis AHRS, you can mount Reactor 40 nearly anywhere, in any orientation. It even reduces power consumption, minimizes heading error and more. |
REACTS TO WATER CONDITIONSHold your course on the sea — this autopilot reacts to conditions, so you can remain confident even when you’re pitching or rolling. |
SIMPLE CALIBRATION AND INSTALLATIONAll autopilots require commissioning and calibration. Reactor 40 makes it quick and easy. This autopilot is easy to install with flexible mounting options. |
WIRELESS REMOTE CAPABILITIESControl your autopilot from anywhere on your boat by using your compatible Garmin devices, including the Reactor autopilot remote, select quatix® marine smartwatches and more (requires a compatible Garmin chartplotter or GHC 50 autopilot instrument). |
SHADOW DRIVE™ TECHNOLOGYGain more freedom when maneuvering your boat. This corepack allows for optional Shadow Drive technology to automatically disengage the autopilot when you turn the wheel. |
OPTIONAL GHC 50 BUNDLECombine the Reactor 40 autopilot with the GHC 50 autopilot instrument to add a dedicated touchscreen autopilot display to your helm. Plus, GHC 50 allows you to share data and settings with Garmin MFDs and other installed Garmin devices. |
POWERBOAT AND SAILING FEATURESWhen connected to your compatible Garmin chartplotter, all Reactor 40 corepacks offer powerboat and sailing features, including heading hold and step turns — plus wind hold and tack/jibe when paired with a wind sensor (sold separately). You can even gain additional benefits such as the follow route and Auto Guidance+™ features3. |