2020-2026 GM 2500HD/3500HD 6.6L L5P Duramax Rebuild Kits

A complete rebuild on your 2020-2026 GM 2500HD/3500HD 6.6L L5P Duramax deserves internal components built to restore reliable performance for the long haul. Our Rebuild Kits selection includes the pistons, rings, bearings, gaskets, and related hardware needed to properly rebuild your Duramax after high mileage or hard use. Using a complete kit helps ensure every wear component is addressed at once, reducing the risk of comebacks from mismatched or overlooked parts. Whether you're restoring a tired engine or building for increased power, these internal components give your L5P a solid foundation. Shop our top tier selection of L5P rebuild kits today!