Collection: 2020-2023 Duramax L5P 6.6L

Take command of modern, high-output diesel muscle. The 2020-2023 6.6L L5P Duramax represents the next generation of heavy-duty performance, pairing Chevy and GMC's updated truck architecture with a further refined Denso fuel system and a massive, electronically controlled variable-geometry turbocharger. Backed by the robust 10-speed Allison automatic transmission, this generation delivers incredible towing capacity, lightning-fast throttle response, and unmatched highway refinement.

Whether you are executing routine maintenance, optimizing airflow efficiency, or tapping into the truck's massive power potential with advanced tuning, find everything you need here.

2020-2023 Duramax L5P 6.6L