Powermaster GM Style Race 12SI Alternator - 12SI - 100 amps - 12V - 1-Wire / 3-Wire - Single V-Belt Pulley - Straight Mount - GM 21411307 5 standard is more stringent

5 standard is more stringent than 229

heater controls

Sets come in fitted wooden cases

For superior strength and stability

Stainless steel hardware

Powermaster GM Style Race 12SI Alternator - 12SI - 100 amps - 12V - 1-Wire / 3-Wire - Single V-Belt Pulley - Straight Mount - GM 21411307 5 standard is more stringentPowermaster Alternator 8002 12si 100 Amp OE Look Natural Ultimate Custom Billet Look At Affordable Prices Smooth Die Cast Housing w Teardrop Design Smooth Back w Special Powermaster Vents Gold Battery Post Proof Of Performance Tags Powermaster produces alternators and starters for both street rod and racing applications. They also offer related accessories, including brackets, wiring harnesses, pulleys, and drive kits. Powermaster Motorsports is the