2020-2025 GM 2500HD/3500HD 6.6L L5P Duramax Injection Pumps

A new injection pump for your 2020-2025 GM 6.6L Duramax L5P is an easy and effective ways to ensure consistent fuel delivery and optimal engine performance, especially if you're running performance mods or frequently towing heavy loads. Our selection of high-performance injection pumps help maintain the correct fuel pressure and flow, providing your engine with the fuel it needs for more power, throttle response, and efficiency. For even greater results, pair your new injection pump with upgraded Injectors or a new Lift Pump to ensure your fuel system runs at its best each time you get behind the wheel. GM Duramax Fitments: 2020, 2021, 2022, 2023, 2024, 2025 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.