Sierra MP41030 Ignition Switch - Off-Run-Start Back Up Nut: Brass, Face Nut: Knurled Black Plastic with Rubber Cap Hole Size: 7/8" Length: Short 1-1/8" maximum panel thickness Rated Ignition: 15 Amp @ 12 VDC, Rated Solenoid: 30 Amp @ 12 VDC Switch position: Off-Run-Start