GM Alternator 1 Wire 120 Amp Black

The GM Alternator 1 Wire 120 Amp Black from PROFORM is designed for vehicle builders and restoration enthusiasts who require reliable electrical output without complex wiring. This single-wire design simplifies installation by eliminating the need for multiple factory connections, making it perfect for custom hot rods, street machines, and engine swaps.

With an output capacity of 120 amps, this alternator provides substantial charging power to support modern accessories, fuel injection systems, and aftermarket lighting. The 1-wire configuration requires only a single positive cable to the battery, while the alternator case is grounded directly to the engine block, simplifying the installation process.

Mechanics and fabricators working on GM engine conversions, especially small-block and big-block installations, will appreciate the straightforward bolt-on fitment. Its robust construction ensures durability under high-output demands typical of performance driving and long-duration engine runs.