Garmin 010-11053-00 GHP 10 ECU Marine GHP 12 Autopilot Electronic Control Unit | eBay
GHP Compact Reactor by GARMIN
On the water with Garmin's GHP 12 Sailboat Autopilot - Garmin Blog
Class A Drive Unit for GHP 12 | Garmin
GHP 12 Autopilot System | Garmin
Garmin GHP 12 autopilot, hello sailors! - Panbo
Garmin 010-11573-00 Class B Drive Unit for GHP 12 Marine Autopilot System, Hydraulic Linear Drive Unit, 12" (303 mm) Stroke Length, 2380 lb (1080 kg) Maximum Thrust