Description
Sierra 3-Position Magneto Ignition Switch with Potted Wire Leads – MP41070-2
A sealed, prewired magneto ignition switch for listed Mercury applications, using color-coded leads that follow factory wire colors.
- Off-Run-Start magneto operation with push-to-choke
- Six color-coded potted wire leads
- Wire colors match factory color codes
- Fits a 7/8-inch hole and panels up to 5/8 inch thick
- Non-conductive polyester housing with corrosion-resistant internal construction
Specifications
- Part number: MP41070-2
- Type: 3-position magneto
- Function: Off – Run – Start; push to choke
- Hole size: 7/8 in.
- Maximum panel thickness: 5/8 in.
- Terminals: 6 color-coded potted wire leads
- Choke rating: 7A @ 12V DC
- Ignition rating: 15A @ 12V DC
- Solenoid rating: 30A @ 12V DC
Interchange / Replaces
- Mercury Marine: 87-17009A2, 87-17009A5
- Sea-Dog: 420383-1
Application / Fitment Notes
Use on listed Mercury applications matching the OEM switch number and wiring configuration. Confirm engine model/serial range before installation.

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