High Output Performance – Delivers 400 amps of power to support high demand electrical systems, including custom audio, off road lighting, and more Large Case Alternator Makes 180-200 Amps at idle, standard vehicle running temp Fits GM Vehicles from 97-04, With 4.3, 4.8, 5.3, 5.7, 6.0, 6.2, and 6.6L engines, Please confirm your engine size before ordering to ensure direct fit Direct Fit for 1997-2004 GM Vehicles – Designed for easy installation with OEM mounting, ensuring a smooth and quick upgrade Enhanced Charging Efficiency – Keeps your electrical system running optimally, reducing strain on your battery and improving overall performance ** This alternator will be raw, powder coating is a custom option as seen in the photos. If interested in getting your alternator powder coated, please contact us for a quote ** ** Build time is 1 to 2 weeks for this unit ** Upgrade Your Vehicle’s Power with the Brand X GM 400A Alternator Maximize your vehicle’s electrical system performance with the Brand X GM 400A High-Output Alternator. Designed for 1997-2004 GM vehicles, this alternator provides an impressive 400 amps of power, ensuring your electrical setup remains efficient and reliable. Whether you’re powering a custom audio system, off-road lights, or other power-hungry accessories, this alternator is engineered to handle the demand and keep everything running smoothly. The Brand X GM 400A Alternator is built with durability in mind. It offers a direct fit for 1997-2004 GM vehicles, making installation straightforward and simple. With its enhanced charging efficiency, it keeps your battery fully charged and minimizes strain on your vehicle’s electrical system. Ideal for performance enthusiasts, this alternator delivers consistent, high-powered output for demanding setups. Fits: Select GM models from 1997-2004 (Check compatibility before purchasing)