Ultra Series GM CS130 Alternator

140 Amp - Cast Finish - Right Off-set

Power your system with the March Performance GM CS130 Alternator, designed with a right offset (passenger-side) mount and 6 and 2 o’clock mounting holes for easy installation. This 140-amp, one-wire alternator delivers consistent output with ultra-low cut-in voltage regulators, ensuring strong charging even at idle. Built with high-quality copper and steel internals, neoprene-sealed bearings for long life, and a durable cast finish, it’s engineered for reliable performance and longevity. Backed by the March Performance Lifetime Warranty, this alternator offers the perfect balance of durability, efficiency, and value.