How to identify a potentiometer?

[PaulHutch]

@socokid

This circuit controls the engine speed in a tractor. I want to add another control outside of the cab so I don’t have to enter the cab to control it.

Given the voltage levels you measured it is possible that adding wires more than a few inches longer than the original to the pot may cause unreliable circuit operation due to noise pickup. It may work fine for days or weeks and then suddenly slam the value to one end of the range due to specific noise patterns. So be very careful as you don’t want uncontrollable acceleration in a vehicle.