Maximum current for the most demanding builds. The NM8301-400ACB is the ultimate power solution for 2005–2024 GM Trucks. Delivering a massive 400 Amps, this alternator is built to sustain extreme audio systems and heavy-duty electrical loads with ease.
When “enough” isn’t enough, there is the Nemesis Audio NM8301-400ACB. Designed for the latest generations of GM trucks (2005–2024), this 400 Amp alternator is engineered for competition-grade audio systems that pull massive amounts of current. Whether you’re hair-tricking or competing in SPL, this unit provides the rock-solid voltage required for peak amplifier performance.
This alternator features a high-efficiency rotor and stator design to maximize output at lower RPMs, ensuring that even when you’re idling at a show, your batteries are charging and your system is hitting hard.
This model is a direct fit for 2005–2024 GM Trucks equipped with the following engines: