Garmin Reactor 40 Steer-By-Wire Standard Corepack w/o GHC 20
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Garmin Reactor 40 Steer-By-Wire Standard Corepack w/o GHC 20 Product Description
Experience Unmatched Precision on the Water
Imagine gliding across choppy waves with your boat holding a steady course, no constant wheel adjustments needed. The Garmin Reactor 40 Steer-By-Wire Standard Corepack delivers exactly that, transforming long voyages into effortless adventures. Tailored for modern electronic steering setups like SeaStar Optimus, Yanmar Marine ZT 370 stern drives, and ZF 2800 Pod drives, this system brings commercial-grade responsiveness to recreational boating.
Boat captains rave about its ability to cut down on fatigue during extended trips, whether you're trolling for fish, cruising coastal waters, or pushing through rough seas. By leveraging cutting-edge sensors, it anticipates and counters boat motion, keeping everyone aboard comfortable and on track.
Advanced Solid-State 9-Axis AHRS Technology
At the heart of this autopilot lies a solid-state 9-axis Attitude Heading Reference System (AHRS). Unlike traditional gyros that demand precise orientation, this compact unit mounts almost anywhere on your vessel—in tight engine compartments or awkward angles—without compromising performance.
It slashes heading errors to near zero, smooths out course deviations, reduces unnecessary rudder activity, and optimizes power draw. The result? A serene ride that feels intuitive, even in unpredictable conditions, making it a game-changer for both powerboaters and sailors.
Adaptive Response to Real-World Sea Conditions
What sets this system apart is its proactive intelligence. It doesn't just follow a set path; it reads the ocean's rhythm—pitch, roll, yaw—and adjusts in real-time. Cross swells or beam seas? No problem. Your boat stays locked on course, freeing you to focus on navigation, fishing lines, or simply enjoying the horizon.
Versatile modes cater to diverse needs: maintain heading for straight-line cruising, hold wind angle for sailing precision, execute smooth tacks and jibes, or perform patterned turns for search patterns. Powerboat enthusiasts appreciate step turns for quick maneuvers, while sailors benefit from wind-based holding.
Streamlined Setup for Quick Getaways
Time on the water is precious, so why spend hours calibrating? This corepack minimizes the hassle with intuitive commissioning that gets you up and running fast. Connect via NMEA 2000, run a brief sea trial, and you're steering by wire with confidence. It's designed for DIY-savvy boaters or pros alike, emphasizing reliability from the first voyage.
Seamless Garmin Ecosystem Integration
Pair it with your existing Garmin chartplotter over the network, and control is at your fingertips from helm or flybridge. Access trolling patterns for precise bait placement, shadow tracking for man-overboard scenarios, or Auto Guidance paths for plotted routes. It thrives in all weather, holding steady when winds howl or waves crash.
This integration elevates situational awareness, blending autopilot smarts with radar, sonar, and GPS for holistic command of your vessel.
Key Features at a Glance
- Compatible with steer-by-wire systems including SeaStar Optimus, Yanmar ZT 370, and ZF 2800 Pods
- Powerboat and sailing modes: heading hold, wind hold, tack/jibe, step turns
- Compact CCU for flexible installation
- NMEA 2000 backbone for easy networking
- Low power consumption for extended battery life
- Weatherproof construction for marine durability
Technical Specifications
| Specification | Details |
|---|---|
| Dimensions (CCU) | 3 19/32 in. diameter (91.4 mm) |
| Operating Temperature | 5°F to 131°F (-15°C to 55°C) |
| Case Material | High-impact plastic, IPX7 waterproof |
| CCU Cable Length | 9.5 ft. (3 m) |
| NMEA 2000 Power Input | 9-16V |
| NMEA 2000 LEN | 3 (150 mA) |
Package Contents
- Reactor 40 CCU (Course Computer Unit)
- CCU cable
- Buzzer
- NMEA 2000 drop cables (2 meters)
- NMEA 2000 power cable
- NMEA 2000 T-connectors
- Male and female terminators
- Documentation
Frequently Asked Questions
What steering systems is the Garmin Reactor 40 Steer-By-Wire compatible with?
It's designed for SeaStar Optimus electronic steering, Yanmar Marine ZT 370 stern drives, and ZF 2800 Pod drives, providing seamless steer-by-wire control.
Can I mount the AHRS sensor anywhere on my boat?
Yes, the solid-state 9-axis AHRS allows flexible mounting in various orientations and locations, simplifying installation.
How does it handle rough seas?
It dynamically reacts to pitching, rolling, and yawing, minimizing deviations for a stable, comfortable ride.
Does it integrate with Garmin chartplotters?
Absolutely, via NMEA 2000, enabling remote control, trolling patterns, and Auto Guidance features.
What's the setup process like?
Commissioning and calibration are quick and user-friendly, getting you on the water with minimal downtime.
Is it suitable for both powerboats and sailboats?
Yes, with dedicated modes like wind hold and tack/jibe for sailing, plus heading hold and step turns for powerboating.
How power-efficient is this autopilot?
It optimizes consumption by reducing rudder movement and errors, ideal for off-grid adventures.
Reactor 40 Steer-By-Wire Standard Corepack without GHC 20
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 SeaStar Optimus systems, Yanmar Marine ZT 370 stern drive electronic power steering systems and ZF 2800 Pod drives.
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; simply pick the autopilot that's compatible with your existing steering system.
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 Sea 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 our compatible 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 Guidance, 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)
- CCU cable
- Buzzer
- NMEA 2000 drop cables (2 meters)
- NMEA 2000 power cable
- NMEA 2000 T-connectors
- Male and female terminators
- Documentation
Garmin Reactor™ 40 Steer-by-wire Standard Corepack Without GHC Control
Model: 010-00705-90- 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 SeaStar Optimus systems, Yanmar Marine ZT 370 stern drive electronic power steering systems and ZF 2800 Pod drives.
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; simply pick the autopilot that’s compatible with your existing steering system.
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.
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.
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.
Combined with Garmins compatible 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 Guidance*, which automatically steers GPS paths.
*Auto Guidance is for planning purposes only and does not replace safe navigation operations.
Specifications| CCU Specifications | |
| Dimensions | 3 19/32 in. diameter (91.4 mm) |
| Temperature range | From 5°F to 131°F (from -15°C to 55°C) |
| Case material | Fully gasketed, high-impact plastic, waterproof to IEC 529 IPX7 standards |
| CCU cable length | 9.5 ft. (3 m) |
| NMEA 2000 power input | 9-16V |
| NMEA 2000 LEN | 3 (150 mA) |
What's in the Box:
- Reactor 40 CCU (Course Computer Unit)
- CCU cable
- Buzzer
- NMEA 2000® drop cables (2 meters)
- NMEA 2000 power cable
- NMEA 2000 T-connectors and terminators
- Male and female terminators
- Documentation
GarminReactor 40 for steer-by-wire provides powerful autopilot functions for SeaStar Optimus system, Yanmar Marine ZT 370 stern drive electronic power steering system and ZF 2800 Pod driver. The Reactor 40 autopilot is very versatile.
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Garmin Reactor 40 Steer-By-Wire Standard Corepack w/o GHC 20 Technical Specifications
| Type: | |
|---|---|
| Vendor: |
Garmin |
| Weight: |
3.29 lb |
| Steering Type: |
Steer-By-Wire |
| Categories v2: |
Marine Navigation & Instruments | Autopilots |
| Category v1: |
AUTOPILOTS |
| UPC: |
753759207977 |
Garmin Reactor 40 Steer-By-Wire Standard Corepack w/o GHC 20 User Reviews
Garmin Reactor 40 Steer-By-Wire Standard Corepack w/o GHC 20 Shipping & Return
| Shipping Weight: |
3.29 lb |
|---|---|
| Box Sizes: |
7.00 (h) x 12.00 (w) x 9.00 (l) |
| Cubic Feet: |
756.0 |
| Returnable: |
Yes |
| USPS First Class: |
Yes |
| Oversize Item: |
Yes |
For detailed shipping policy please check our Shipping Policy and you can find our Return and Refund Policy here.



