This potentiometer is an original AGCO component that provides a variable resistance signal to the tractor's electronic control unit. It is installed within the electrical system and translates a mechanical position—such as a lever or pedal angle—into a voltage that the ECU uses to adjust engine speed, hydraulic flow, or other operating parameters. A failing potentiometer produces erratic or non-responsive control behavior, often causing surging, loss of power, or warning codes. The original part maintains the correct resistance curve and connector pinout, ensuring the signal matches the ECU's calibration without the need for adaptation or wiring modification.