Powermaster GM Original Look 12SI Alternator - 150 amps - 12V - 1-Wire / 3-Wire - Single V-Belt Pulley - Straight Mount - Chrome - GM 37294 600090142 Constructed from the same A514

Constructed from the same A514 Blanchard ground steel and neutral balanced with 168-tooth (Chevy) and 166-tooth (Pontiac) starter rings

And Smooth Idle

GM Fullsize SUV / Truck 2019-22

780 in Rectangle Port

Powermaster GM Original Look 12SI Alternator - 150 amps - 12V - 1-Wire / 3-Wire - Single V-Belt Pulley - Straight Mount - Chrome - GM 37294 600090142 Constructed from the same A514Powermaster Alternator 37294 12si 140 Amp OE Look w Baffled Fan Cone 1 V Belt Pulley Chrome 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