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12_3aeee062-2705-474b-a808-5fe8fc49c70c - Northline Parts

Alternator for Chevrolet Express 2500 Express 3500 2016-2020 GMC Sierra 2500 HD

Alligator_819_x_200_px - Northline Parts

The Aftermarket Parts Specialists

$256.99
Sale price  $256.99 Regular price 

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I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

Alternator for Chevrolet Express 2500 Express 3500 2016-2020 GMC Sierra 2500 HD

Keep your vehicle’s electrical system performing at its best with this high-quality aftermarket alternator. Engineered to provide reliable power delivery, this unit is a cost-effective alternative to OEM parts, ensuring your battery stays charged and your heavy-duty truck or van remains on the road. Whether you are managing a fleet or maintaining your personal work vehicle, this replacement alternator offers the durability and performance you need for long-term service.

Key Features & Benefits

  • Reliable Power: Provides consistent charging to support all onboard electronics and accessories.
  • Aftermarket Durability: Constructed with high-grade components to resist heat and wear in demanding environments.
  • Direct Fit Replacement: Designed to match the fit and function of the original equipment for a straightforward installation.
  • Cost-Effective: High-performance aftermarket solution that meets or exceeds standard requirements without the OEM price tag.

Compatible Models

  • Chevrolet Express 2500 (2016-2020)
  • Chevrolet Express 3500 (2016-2020)
  • GMC Sierra 2500 HD (2016-2020)

Product Specifications

  • Part Type: Alternator
  • Condition: Brand New Aftermarket
  • System Voltage: 12V
  • Design: Internal Regulator & Internal Fan

Frequently Asked Questions

Is this an OEM part? No, this is a premium aftermarket part and is not manufactured by the original equipment manufacturer (OEM).

How do I confirm compatibility? You can confirm compatibility by checking your vehicle's year, make, and model against the list provided or by verifying the part number or serial number on your existing unit before purchase.


Important: This is a premium aftermarket part and is not manufactured by the original equipment manufacturer (OEM). Brand names and model numbers are used for reference purposes only. Compatibility may vary depending on the machine's serial number. Please verify fitment before purchase.

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Service was professional and easy to work with. They kept me updated on my order and recommended a different part when the one I originally picked wasn’t going to work. Everything showed up as expected and the process was smooth overall.

- Customer, Chris D.

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