Sierra 3-Position Ignition Switch MP39060-1Specifications: Back Up Nut: Brass; Face Nut: Hex Chrome; Hole Size: 7/8"; Length: Long: 1 1/8" maximum panel thickness; Material: Brass; Rated Ignition: 15 Amp @ 12v DC; Rated Solenoid: 30 Amp @ 12v DC; Terminal Type: 3 Screw Tab; Type: 3 Position Conventional; Switch Function: Off - Run - Start; Corrosion resistant construction; Interchangeable with: Sea Sense; 50031153; Valmar; 31132;