Part Numbers
The ST3000 system consists of the control unit, drive assemble, belt and wheel drum. The drive unit has a small dc motor that turns a planetary gear box and in turn the main drive cog. There are also several different generations of 3000 autopilot. This response is assuming that this autopilot was manufactured between 1990-present and that it is an ST3000.Q101..............ST3000 MotorQ045..............ST3000 Drive AssemblyThe Raymarine repair center would be happy to take a look at the drive unit for you. Please check out the website at www.raymarine.com for shipping contact information and details.