This magnetic switch is a component of the electrical system that controls the engagement or disengagement of a circuit in the host tractor. It sits between the power source and the load, acting as a relay or interlock that opens or closes the circuit based on a magnetic field. A failing switch may cause intermittent operation of the attached electrical device or a complete loss of function. As an original-manufacturer part, its internal contact geometry and coil resistance match the original assembly's switching curve, so the circuit opens and closes at the correct current threshold. No shimming or adjustment is needed during installation; the switch mounts directly into the existing bracket and wiring harness.