Air kill switch includes as seen in the photos a steel mounting tab for the manually operated switch and the main power switch, normally open toggle switch and power kill switch box. Threads to plumb the switch are 10-32.
The racer must supply an air tank and air line to make this switch function. Racer will also have to weld both mounting tabs to their chassis.
Works with most all MSD, Mallory, FIE, Vertex and Hunt magnetos.