The Alliant Power AP54802 is a remanufactured remanufactured fuel injector bank kit for 2017–2022 GM L5P Duramax applications. Alliant’s Fuel Injector Kit provides components used to service or replace a fuel injector assembly.

Features & Benefits

• Remanufactured Alliant Power Remanufactured Fuel Injector Bank Kit (Alliant P/N AP54802)
• Fit, form, and function tested to meet or exceed original-equipment standards (per Alliant Power)
• Direct replacement for 12647790 / 12664576 / 12674615
• Backed by Alliant Power’s 24-month, unlimited-mileage warranty

Application

• Chevrolet Silverado 2500 HD / Silverado 3500 HD (2017–2020)
• Chevrolet Silverado 2500 HD / Silverado 3500 HD (2017–2022)
• GMC Sierra 2500 HD / Sierra 3500 HD (2017–2020)
• GMC Sierra 2500 HD / Sierra 3500 HD (2017–2022)

Always verify fitment against your VIN, engine, and OE part number before ordering.

Cross-Reference / Replaces

• General Motors: 12647790, 12664576, 12674615, 12678992, 12685294, 12687230, 12696966, 12698552, 12701094, 12720156
• Alliant Power: AP54802

Warranty: Alliant Power’s standard warranty: 24 months with unlimited miles/hours on installed parts (Alliant Power warranty policy, rev. Aug 2025).

A refundable core charge is added at checkout and refunded when your old injectors are returned per our core terms.