GM CS130D Alternator 120 Amps- w/6G Serp Pulley

The POWERMASTER GM CS130D Alternator 120 Amps with 6-Rib Serpentine Pulley is designed for drivers and mechanics who require reliable electrical output in GM vehicles. This 120-ampere unit serves as a direct replacement for factory alternators, ensuring consistent charging performance for stock and moderately upgraded electrical systems. Whether restoring a classic GM engine or maintaining modern performance vehicles, this alternator provides the dependable power generation necessary to keep batteries charged under various driving conditions.

Constructed with an aluminum case, the CS130D features a robust 1-wire wiring configuration that simplifies installation and reduces harness complexity compared to multi-wire designs. The 6-rib serpentine pulley guarantees smooth belt engagement and efficient power transfer from the engine crankshaft to the alternator rotor. Rated at 120 amps at 12 volts, this unit generates sufficient amperage to support factory lighting, ignition systems, and accessories without voltage drop.

Mechanics and enthusiasts working on General Motors applications—including small-block and big-block engines—will find this alternator a plug-and-play solution for OEM replacement or upgrades. The natural finish aluminum housing provides corrosion resistance and durability in engine compartment environments, making it suitable for both street and performance applications where thermal stability is essential.