The Garmin Reactor™ 40 Hydraulic Corepack with SmartPump v2 with GHC™ 50 Autopilot Instrument (Part Number: 010-02794-01) is a flagship autopilot solution engineered for hydraulically steered powerboats and sailboats. At the core of the system is the SmartPump v2, a versatile, one-size-fits-most hydraulic assembly featuring a quiet brushless motor that automatically adjusts flow rates (0 to 2.4 L/min) to accommodate steering cylinders ranging from 4 to 24 cu. in.. Driven by a solid-state 9-axis Attitude Heading Reference System (AHRS) Course Computer Unit (CCU), the corepack allows flexible mounting orientations while actively minimizing heading drift, rudder over-correction, and power draw in rolling sea conditions. The package includes patented Shadow Drive™ technology to automatically disengage the autopilot when manual helm input is applied and seamlessly re-engage once a steady course is held. Modern, dedicated helm management is provided by the included GHC™ 50 control head—a sleek 5-inch, edge-to-edge glass WVGA touchscreen display with anti-glare optics designed to match GPSMAP® chartplotters. Full NMEA 2000® and Ethernet networking enable effortless integration with compatible Garmin chartplotters, Auto Guidance+™ routing, optional wireless remotes, and quatix® smartwatches.

In the Box

GHC™ 50
SmartPump v2
Reactor 40 CCU (Course Computer Unit)
ECU (Electronic Control Unit) power cable
Interconnect cable
Shadow Drive
Buzzer
NMEA 2000® drop cables (2 meters)
NMEA 2000 power cable
NMEA 2000 T-connectors
Male and female terminators
Documentation

Technical Specification

Dimensions (H x W x D): 7 3/4″ x 7 1/2″ x 9 5/8″ (197 mm x 190 mm x 244 mm)
Weight: 16.5 lbs (7.5 kg)
Temperature range: From 5°F to 131°F (from -15°C to 55°C)
Material: Electronics Control Unit (ECU) – fully gasketed, aluminum alloy; bracket – carbon steel; manifold – aluminum alloy; motor – aluminum alloy
Power cable length: 9 ft (2.7 m)
Power input: 11.5-30 Vdc
Fuse: 40 A, blade-type
Main power usage: standby – less than 1 A; engaged – 5-10 A; peak – 34 A
Flow rate: Configurable from 0 to 2.4 L per minute
Compatible with steering cylinder sizes from 4-24 cu in; 7 second lock to lock up to 17 cu in

CCU Specifications

Dimensions: 3 19/32″ diameter (91.4 mm)
Weight: 5.6 oz (159 g)
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: 9-16 V
NMEA 2000 LEN: 3 (150 mA)

Buzzer/Alarm Specifications

Dimensions (L × Diameter): 29/32″ × 1.0″ (23 mm × 25 mm)
Weight: 2.4 oz (68 g)
Temperature range: from 5°F to 131°F (from -15°C to 55°C)
Cable length: 10 ft (3.0 m)

GHC 50 General Specifications

Dimensions	5.5” x 4.1” x 2.0” (140 x 105 x 51 mm)
Touchscreen	yes
Display resolution	800 x 480
Display type	WVGA
Weight	11.57 oz (328 g)
Water Rating	IPX7
Mounting options	Flat or flush