4-Position Ignition Switch Magneto, Accessory-Off-Run-Start
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SIERRA4-Position Ignition Switch Magneto, Accessory-Off-Run-Start


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Model # 10529923 | Mfg # MP39730UPC # 808282200695


4-Position Ignition Switch Magneto, Accessory-Off-Run-Start

Name Value
Type Switches

Product Overview

This magneto ignition switch is for outboard engines without a choke circuit.

Sierra's Ignition Switch is impact- and corrosion-resistant and installs in a standard 7/8"dia. hole. This four-position magneto switch provides Accessory-Off-Run-Start for outboard engines without a choke circuit. 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
  • Four-position magneto switch


  • Material: Marine-grade glass-filled polyester
  • Length: Short, 5/8" maximum panel thickness
  • Hole Size: 7/8"
  • Terminal Type: 6 screw tab
  • Back Up Nut: Brass
  • Face Nut: Hex black plastic
  • Positions: Accessory-Off-Run-Start


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

The Sierra Engine Parts Selector

In addition to ignition switches, we offer a wide variety of other engine parts manufactured by Sierra. To see if we have the part you need, see our Engine Parts Selector, where you can search by engine make, serial number and model or year of manufacture.


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