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The Garmin Reactor™ 40 Steer-by-wire Standard Corepack without GHC™ (MPN: 010-00705-90) provides a clean, fully integrated electronic autopilot solution for vessels equipped with modern steer-by-wire steering systems. Powered by a solid-state 9-axis Attitude Heading Reference System (AHRS), the Reactor 40 Course Computer Unit (CCU) continuously monitors vessel dynamics to maintain smooth course holding, minimize heading error, and reduce power consumption even in rough seas. Designed to interface directly with compatible CAN bus steer-by-wire platforms—such as Dometic SeaStar Optimus, Yanmar JC10, and ZF 2800 Pod drives—it eliminates the need for external hydraulic pumps or mechanical actuators. By omitting the standalone GHC helm display, this corepack relies on NMEA 2000® networking to deliver full autopilot control, route tracking, and setup capabilities directly through a networked, compatible Garmin GPSMAP® or ECHOMAP™ chartplotter, making it an ideal choice for streamlined helms with existing multi-function displays.
| Feature / Parameter | Specification |
| Garmin Part Number (MPN) | 010-00705-90 |
| Physical Dimensions | 3 19/32″ diameter (91.4 mm) |
| Weight | 5.6 oz (159 g) |
| Sensor Type | Solid-state 9-axis AHRS (Attitude Heading Reference System) |
| Case Material | Fully gasketed, high-impact plastic |
| Water Rating | IEC 60529 IPX7 (waterproof up to 1m depth for 30 min) |
| Operating Temperature | -15°C to 55°C (5°F to 131°F) |
| NMEA 2000 Power Input | 9V to 16V DC |
| NMEA 2000 LEN | 3 (150 mA) |
| CCU Cable Length | 9.5 ft (3 m) |
| Steering System Interface | Direct CAN bus / digital steering protocol integration (Dometic SeaStar Optimus, Yanmar ZT370/JC10, ZF 2800 Pod drives) |
| Display Interface | Networked Garmin GPSMAP® or ECHOMAP™ Chartplotter (No standalone display included) |
| Parameter | Specification |
| Dimensions (L x Diameter) | 29/32″ x 1″ (23 x 25 mm) |
| Weight | 2.4 oz (68 g) |
| Operating Temperature | -15°C to 55°C (5°F to 131°F) |
| Cable Length | 10 ft (3.0 m) |
| Item | Details |
| NMEA 2000 Drop Cable | 2 m (6.5 ft) |
| NMEA 2000 Power Cable | 2 m (6.5 ft) |
| T-Connectors & Terminators | 3x NMEA 2000 T-connectors, 1x Male & 1x Female terminators |
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