Sierra MP52000 Mercury Ignition Switch 3 PositionSierra MP52000 Mercury Ignition Switch is a direct OEM replacement, making installation easy. Ideal for DFI, EFI and MPI engines; Heavy duty potted construction; Minimal bleed per circuit; Molded umbrella type key; Push to choke; Maximum corrosion protection - eliminates oxidation; Inner seal between cylinder lock and contact plate; Non-conductive housing eliminates potential shorts; Specifications: Back Up Nut: Plastic; Face Nut: Hex Black Plastic; Hole Size: 7/8"; Length: Short: 5/8" maximum panel thickness; Material: Marine grade glass-filled Polyester; Rated Choke: 7 Amp @ 12v DC; Rated Ignition: 15 Amp @ 12v DC; Rated Solenoid: 30 Amp @ 12v DC; Terminal Type: 6 Color Coded Wire Leads/Potted; Switch Positions: Off - Run - Start; TYPE: 3 Position Magneto; Interchangeable with: Mercury Marine; 87-88107A5; Mercury Sport Jet; 87-88107A5;