Garmin Reactor 40 Autopilot with SmartPump v2 (No GHC) is a compact hydraulic autopilot corepack designed for serious powerboats and sailboats, delivering steady, confident steering. It combines a solid-state 9-axis AHRS with a brushless SmartPump v2 for reliable course-keeping.
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SmartPump v2: A single, compact brushless unit with improved thermal performance, higher reliability, and lower power consumption; automatic flow control configured from 0 to 2.4 L/min for precise, efficient steering.
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Solid-state 9-axis AHRS: Attitude Heading Reference System that enables accurate heading and orientation, mounts in nearly any orientation, reduces heading error and course deviation while conserving power.
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Shadow Drive technology: Patented control approach that keeps you in command when the autopilot is engaged, delivering steady steering through changing sea conditions.
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Cylinder compatibility & lock-to-lock: Supports steering cylinders from 4–24 cu in, with a 7-second lock-to-lock for cylinders up to 17 cu in.
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Easy installation: Color-coded connectors simplify wiring and setup for quick, reliable commissioning.
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Chartplotter integration: Designed to pair with a compatible Garmin chartplotter; when used with BlueChart g2 Vision charts, Auto Guidance2 can automatically steer GPS paths for added convenience.
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Intelligent Rudder Rate Technology: Delivers smooth, precise steering adjustments for confident hands-off operation.
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All-weather durability: Fully gasketed, high-impact plastic enclosure with IPX7 waterproof rating for real-world boating.
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Power & electrical specs: Main power input 11.5–30 Vdc; fuse 40 A; standby current < 1 A; engaged 5–10 A; peak 34 A.
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Physical size & weight: CCU measures 3 19/32" diameter (91.4 mm) and weighs 5.6 oz (159 g).
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Flow rate & temperature range: Configurable flow up to 2.4 L/min; operating temperature range 5°F to 131°F (-15°C to 55°C).
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NMEA 2000 connectivity: NMEA 2000 power input 9–16 V; LEN 3 (150 mA); CCU cable length 9.5 ft (3 m).
The Reactor 40 with SmartPump v2 No GHC is a complete autopilot package designed for both powerboats and sailboats, emphasizing simplicity, reliability, and performance. It reacts to sea conditions to hold your course, delivering smoother steering, improved efficiency, and greater confidence at the helm—whether you’re cruising coastal waters or charting offshore passages.
| Temperature range |
From 5°F to 131°F (from -15°C to 55°C) |
| 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 |
| 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) |
