Kill Switch for MSD 12 and 20 Amp Pro Mags (Not 44 Amp)

This heavy-duty single-pole, single-throw kill switch will stand up to the abuse of racing.

PART# 8111

Suggested Retail: $67.94
Your Price:$61.15
Free Shipping on orders over $100*
Not for use with the Pro-Mag 44.


The switch is rated at 15 amps so it can handle the power of the Pro-Mag 12. The housing is designed to survive high impacts and features a molded-in elastomer seal between the toggle lever and bushing. The beefy aluminum housing provides a secure mount to withstand extreme racing conditions. (Supplied with the PN 8106 Electronics Points Box.)


BrandPro Mag
Emission Code3

Tech Resources

Not for use with the Pro-Mag 44.

Parts & Kits


This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.

*Free Shipping & Handling only offered to the continental US on orders over $100.