Sierra MP40960 Emergency Cut-Off Switch Straight Lanyard; Kills ignition when lanyard is pulled; For use with conventional or magneto ignitions; Unique design keeps plunger down when lanyard connected; Seals out moisture; Makes re-connection easier; Panel thickness up to 1/4''; 4 Terminals allow selection of normally open or normally closed circuit; Interchangeable with: Seadog; 420486-1;