2017-2019 GM 2500HD/3500HD 6.6L L5P Duramax Injection pumps

The injection pump on your 2017-2019 GM 6.6L Duramax L5P is responsible for delivering the precise amount of fuel needed for optimal combustion, and when you’re upgrading your truck with performance mods, a high-quality pump is essential. At Alligator Performance, we offer both stock replacement pumps for those looking to maintain factory performance, along with upgraded pumps designed to handle increased fuel demands. A performance injection pump not only promotes increased horsepower and torque but also improves throttle response and overall engine efficiency.  GM Duramax Fitments: 2017, 2018, and 2019 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.