140amp Alternator GM CS130 w/1V Pulley

The 140amp Alternator GM CS130 with 1V Pulley from Powermaster is designed for high-output charging capacity, making it ideal for street rods, restorations, and modern engine swaps. Mechanics understand that factory alternators often fall short under the demands of upgraded ignition systems, fuel injection controllers, electric fans, and auxiliary lighting, especially during long highway runs.

This alternator is built on the proven GM CS130 platform and features internal voltage regulation, ensuring reliable performance. The unit is designed to fit existing engine bays with minimal modification, thanks to its compact OEM-style case. The pulley is designed for serpentine belt systems, calibrated for efficient power delivery across a wide RPM range, preventing overcharging and extending battery life.

Ideal for late-model small-block Chevy swaps, LS conversions, and Chevrolet truck restorations, this alternator supports modern accessories on classic or modified platforms. Its lightweight design at 11.9 lbs makes it suitable for weight-conscious builds while maintaining robust construction for continuous high-amp draw.