Nemesis Audio | NM8301-400ACB | Alternator for 2005–2024 GM Trucks

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.

The Ultimate Electrical Upgrade

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.

Fitment Applications:

This model is a direct fit for 2005–2024 GM Trucks equipped with the following engines:

• 4.3L / 4.8L / 5.8L / 6.0L / 6.2L / 6.6L

Key Features:

• Top-Tier 400 Amp Output: The highest output available for the modern GM truck platform.
• Precision Engineering: Designed to maintain high current delivery without overheating.
• Plug-and-Play Compatibility: Engineered for a direct bolt-on fit for 2005+ GM engines.
• Competition Ready: Built to withstand the rigors of high-decibel audio demonstrations.

Technical Specifications:

• Model: NM8301-400ACB
• Amperage: 400 Amp
• Compatibility: GM Trucks (2005–2024)
• Color/Finish: Standard / Black