2017-2019 GM Duramax 6.6L L5P Differential Covers

If you've recently upgraded to high-performance driveline components on your 2017-2019 GM 6.6L Duramax L5P, you're going to need a new differential cover to improve the overall functionality and protection of these components. Here at Alligator Performance, we carry a ton of aftermarket differential covers that help dissipate heat faster with upgraded fluid capacities, and protect your gears from contaminants like dirt and water with their premium construction and sealing. You'll even experience more an increase in protection for your vulnerable driveline parts as each cover we offer is built to the highest quality standards. GM Duramax Fitments: 2017, 2018, 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.