2017-2019 GM 2500HD/3500HD 6.6L L5P Duramax Lift Pumps & Filters

Upgrading the fuel lift pump and fuel filter on your 2017-2019 GM 6.6L Duramax is a great way to maximize the power and efficiency of your GM 2500HD/3500HD. A new fuel lift pump helps deliver a consistent and reliable flow of fuel to your engine, especially when running high-performance tunes or during hardcore driving applications. By maintaining proper fuel pressure, a lift pump helps prevent fuel starvation, which can lead to reduced power, poor throttle response, and even engine damage under heavy stress. Clean fuel ensures more efficient combustion, better fuel economy, and longer injector life, making your truck more reliable in the long run. These fuel upgrades are particularly important for trucks that tow, haul, or operate in extreme conditions frequently. 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.