3-Position  Magneto Ignition Switch, Push-to-Choke
Mouse Over to Zoom
Click to Enlarge

SIERRA3-Position Magneto Ignition Switch, Push-to-Choke


In stock online.

Add extra coverage from the date of purchase beyond the manufacturer’s warranty.  View Details

Model # 10529980 | Mfg # MP41070-2UPC # 808282201784


3-Position Magneto Ignition Switch, Push-to-Choke

Name Value
Type Switches

Product Overview

This magneto ignition switch is a direct replacement for Mercury Marine 87-17009A2 and 87-17009A5.

Sierra's Polyester Ignition Switch is impact- and corrosion-resistant and fits a standard 7/8"dia. hole. The six color-coded wire leads match Mercury Marine factory color codes for easy installation. This three-position magneto switch provides Off-Run-Start with push-to-choke. Includes two keys and different key codes for added security.

Key Features

  • Maximum corrosion protection eliminates oxidation
  • Inner seal between cylinder lock and contact plate
  • Non-conductive housing eliminates potential shorts
  • Three-position magneto switch
  • Push-to-choke
  • Interchangeable with Mercury Marine 87-17009A2, 87-17009A5
  • Colors on switch wires match factory color codes


  • Material: Marine-grade glass-filled polyester
  • Length: Short, 5/8" maximum panel thickness
  • Hole Size: 7/8"
  • Terminal Type: Six color-coded wire leads/potted
  • Back Up Nut: Not required
  • Face Nut: Hex black plastic
  • Choke: Push-to-choke
  • Positions: Off-Run-Start


  • Ignition: 15A @ 12V DC
  • Solenoid: 30A @ 12V DC
  • Choke: 7A @ 12V DC


The West Advisor articles have answered boaters' questions and provided solutions to boating problems for more than 20 years. West Marine has compiled one of the Web's most comprehensive collections of technical boating information articles.

Related West Advisor Articles


Product Q & A