Ultra Series GM CS130 Alternator

140 AMP - As-Cast - Left Offset

Deliver dependable charging power with the March Performance GM CS130 Alternator, featuring a left offset (driver-side) mount with 6 and 10 o’clock mounting holes. This 140-amp, one-wire alternator offers easy installation and strong output with ultra-low cut-in voltage regulators for consistent performance even at idle. Built with high-quality copper and steel internals, neoprene-sealed bearings, and a durable cast finish, it ensures long-lasting reliability and smooth operation. Backed by the March Performance Lifetime Warranty, this alternator combines strength, efficiency, and value for any performance application.