Nemesis Audio NM8237-400A-CB 400 AMP Alternator for Select GM Trucks 1996-2004

If you are running multiple amplifiers or a high-wattage subwoofer system, your factory alternator simply cannot keep up. The Nemesis Audio NM8237-400A-CB solves this by delivering a massive 400 Amps of current. This high-output unit is built to provide maximum charging efficiency even at idle, keeping your batteries topped off and your voltage stable during heavy bass hits.

Designed as a direct fit for the 1996–2004 GM truck platform, this alternator is the backbone of any serious electrical upgrade. It features heavy-duty internal components and a high-efficiency cooling design to ensure long-term reliability under the most demanding conditions.