There are many versions of Reactor autopilots. For main outboard hydraulic drive you need 2.0 or Smart pump. If yours is smaller it might make noise from overworking.
Garmin Reactor 40 Kicker Autopilot. Practically new. All parts are there and extra extension cable from ECU to CCU. Extra backbone cables. Control from GHC50 and hand held remote as well as Garmin Finder/plotter. Never saw the water. All was tested before I took it off the boat I sold. Cost 2,999 new. 1999 Cash only. Will meet along along I81 from Binghamton to Watertown.