I'm looking at a used ST4000. The Gear on the motor needs replacing. Is this part still available? Are there any other parts that would be available such as belt or wheels? I have the motor for a ST3000. Would the ST4000 head work with the ST3000 motor?
Welcome to the Raymarine Forum jcarey,
The ST4000 is a retired product combining autopilot control head and autopilot course computer within a single device. The ST4000 was designed for use with a number of different drive units. Is the drive unit which you have referenced a wheel drive? If so, what color is the drive unit?