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Pro Mag 12 Amp Generator, Chevy V8, Tall

Supplied with a cap, rotor, wire retainer, bronze gear and a Billet Hold-Down Clamp.


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Two taller, one-piece housings are available for Chevrolet engine blocks with taller deck heights. Each generator features an adjustable slip collar that provides easy adjustment of the magneto and cam gear alignment. This is critical for engines with varying deck heights, custom heads and modified intakes.


BrandPro Mag
Emission Code4
Primary Current12 amps
Product TypeMagneto
WarrantyLimited 1 Year Warranty
Part Number8139MSD

Service Parts



This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

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