Universal Magneto Kill Switch Fits Allis Chalmers TractorsOne New Aftermarket Replacement Magneto Kill Switch Fits Allis Chalmers Tractors This push pull magneto kill switch mounts to the dashboard and grounds the magneto's contact point circuit to shut down engine spark. Pulling the knob out engages the run position; pushing it in grounds the magneto to stop the engine. The single terminal design is for use on grounded frame tractors equipped with magneto ignition. The chrome knob, non fused construction,