Alternator Serpentine GM 150amp 1-Wire Black

The Holley Alternator Serpentine GM 150amp 1-Wire Black is a high-output electrical component designed for hot rodders, classic car restorers, and serious engine builders who require reliable charging capability in tight underhood spaces. This alternator addresses the challenges faced by enthusiasts with custom engine swaps and upgraded electrical systems, providing the necessary power for modern demands.

With a 150-amp output rating, this unit ensures that large-capacity batteries can be charged while simultaneously powering electric fans, fuel pumps, and advanced engine management systems. Built around General Motors' serpentine charging architecture, it features a compact single-wire design that simplifies installation by eliminating complex wiring harnesses. The internal voltage regulator is self-contained and preset to 14.2 volts, providing consistent charging across the entire RPM range.

Weighing 14.3 lbs and measuring 9.5 by 9.3 by 9.7 inches, this alternator fits well in tight spaces while delivering uncompromised amperage. It is ideal for restomod applications and ensures that modified vehicles maintain optimal electrical performance. The black powder-coat finish also resists corrosion and heat degradation, making it suitable for high-temperature engine bays.