This electric ignition switch controls the starting and stopping of the tractor's engine by completing the electrical circuit between the battery and the starter solenoid when turned to the start position. It is mounted in the cab within reach of the operator and connects to the vehicle's wiring harness through a multi-pin connector. A worn switch can cause intermittent starting, failure to hold the start position, or loss of power to accessories. The manufacturer produces this switch to match the original housing dimensions and terminal layout, so the existing wiring plugs in without modification. On installation, ensure the switch is fully seated in the panel and that the retaining nut is tightened to prevent rotation during use.