
Replace your broken ignition switch
The Sierra MP39760 Outboard Ignition Switch is a replacement 3-ignition switch for Johnson/Evinrude Outboards. Built for the harsh marine environment, it features maximum corrosion protection with an inner seal between cylinder lock and contact plate. Non-conductive housing eliminates potential shorts. Works with both magneto and conventional ignitions.
Sierra MP39760 Outboard Ignition Switch Features:
- Push to choke
- Maximum corrosion protection – eliminates oxidation
- Inner seal between cylinder lock and contact plate
- Non-conductive housing eliminates potential shorts
- 20 Amp rating
- 2, 3 and 4 position switches
- Switches for magneto and conventional ignitions
Sierra MP39760 Outboard Ignition Switch 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: 5 Screw Tab, 1 Boss Screw
- Switch Positions: Off – Run – Start
- Type: 3 Position Magneto
- Johnson/Evinrude Outboard: 393301, 508180
- OMC: 508180, 393301
- Seadog: 420382-1
Note: Drain hole must face down.
















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