NM8301-400ACB Alternator
$649.99
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
For our valued customers, we offer straightforward shipping rates based on your order total and customer type.
Retail Customers
Orders under $100: Flat shipping fee of $10.
Orders over $100: Free shipping.
Wholesale Customers
Orders under $2,000: Flat shipping fee of $100.
Orders over $2,000: Free shipping.
















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