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Imagine cruising your single-engine outboard boat under 25 feet without constantly gripping the wheel, letting the autopilot handle the steady course while you focus on the horizon or reeling in the next catch. The Garmin Compact Reactor 40 hydraulic autopilot, paired with the GHC 50 instrument pack, delivers that hands-free reliability for everyday adventures on the water.
Built for smaller vessels, this system stands out with its compact design and intuitive operation, adapting seamlessly to the choppy conditions you encounter during moderate to high-speed runs. It's not just about holding a straight line—it's about giving you confidence to explore farther, fish longer, or simply relax on deck.
For anglers trolling bait or families heading to a secluded cove, this autopilot shines by freeing your hands for what matters. It supports powerboat essentials like heading hold and step turns, while wind hold and tack/jibe unlock sailing capabilities when you add a wind sensor. Link it to a Garmin chartplotter for smarter navigation perks, helping you follow routes with ease.
Users rave about its low power use, which extends battery life on day trips, and its rugged build that shrugs off saltwater exposure. Whether you're dodging crab pots or maintaining speed in swells, it responds with the precision boaters trust from Garmin's marine lineup.
Flexible mounting options mean no major boat mods. The compact CCU fits snugly, and the included 1.0L pump integrates smoothly with hydraulic steering systems. Connect via NMEA 2000 for plug-and-play networking, and the buzzer provides clear feedback during operation.
Pro tip: Position the AHRS away from magnetic interference like speakers or metal masses for optimal accuracy. Most installs wrap up in an afternoon, leaving more time for testing on open water.
This corepack plays nice with a range of Garmin devices, turning your helm into a connected command center. Control turns, adjust settings, or monitor status from the GHC 50 display or your multifunction display. It's a natural upgrade for boats already running Garmin radars, sonars, or GPS units.
| Specification | Details |
|---|---|
| Unit dimensions (WxHxD) | 4.3" x 4.4" x 1.9" (10.9 x 11.2 x 4.8 cm) |
| Pump dimensions (LxWxH) | 6.6" x 3.9" x 3.3" (16.8 x 10.0 x 8.5 cm) |
| NMEA Output | NMEA 2000 |
| Supply Voltage | 10V to 20V |
| Operating Temperature | -15°C to 70°C (5°F to 158°F) |
Yes, it's optimized for boats under 25 feet with hydraulic steering, making it ideal for center consoles, bay boats, and similar setups.
It provides more accurate heading data with less drift, lower power use, and flexible mounting, leading to smoother course holding in rough seas.
Absolutely—compatible chartplotters let you engage, adjust, and monitor the autopilot right from your MFD or helm screen.
Calibration is streamlined: a few simple steps on calm water, often completed in under 30 minutes, guided by the GHC 50 display.
Primarily for powerboats, but adds sailing features like wind hold when connected to a chartplotter and wind sensor.
It senses wheel movement and instantly disengages the autopilot, preventing conflicts during manual maneuvers like docking.
Single-engine outboards under 25 feet, especially fishing boats where steady trolling speeds are key.
Garmin Compact Reactor™ 40 Hydraulic Autopilot with GHC™ 50 Instrument Pack With GHC™ 50
Model: 010-02794-07Designed 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 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.
With 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.
Hold your course on the sea — this autopilot reacts to conditions, so you can remain confident even when you’re pitching or rolling.
All autopilots require commissioning and calibration. Reactor 40 makes it quick and easy. This autopilot is easy to install with flexible mounting options.
Control 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).
Gain more freedom when maneuvering your boat. This corepack allows for optional Shadow Drive technology to automatically disengage the autopilot when you turn the wheel.
When 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.
1 Auto Guidance is for planning purposes only and does not replace safe navigation operations
Specifications| Unit dimensions, WxHxD | 4.3 "" x 4.4 "" x 1.9 "" (10.9 x 11.2 x 4.8 cm) |
| Pump dimensions, LxWxH | 6.6 "" x 3.9 "" x 3.3 "" (16.8 x 10.0 x 8.5 cm) |
| NMEA output | NMEA 2000 |
| Supply voltage | 10V to 20V |
| Operating temperature | -15° C to 70 C° (5° F to 158° F) |
Ships within 48 hours · Estimated delivery Jul 1 - Jul 6
US$40
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