AGCO - 3796579M1 - Gearbox Position Sensor Massey Ferguson

This gearbox position sensor reports the rotational state of the transmission output shaft to the electronic control unit. It is threaded into the gearbox housing and uses a two-pin connection to send a signal that the ECU interprets for functions such as PTO engagement and speed-dependent hydraulic response. A failing sensor produces erratic or missing speed readings, which can cause the transmission to behave unpredictably or enter a safe mode. As an original AGCO part, the sensor body and thread geometry match the housing bore exactly, so no adapter or thread sealant is required beyond the standard O-ring.