2020-2025 GM 2500HD/3500HD 6.6L L5P Duramax 6.75ft Bed Tonneau Covers

A tonneau cover is one of the most practical upgrades for your 2020-2025 GM 2500HD/3500HD Duramax, providing more protection and functionality for all of your adventures. At Alligator Performance, we carry a variety of 6.75ft Bed Covers to suit your needs, including roll-up, fold-out, and retractable designs that deliver different levels of convenience and protection. These tonneau covers not only protect your cargo but also give your Sierra or Silverado a sleek, exterior look that will be sure to set your truck apart from the rest of the pack. Pair your new cover with some additional Bed Accessories to further improve the protection and organization of your gear. 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.