【Fitment】: Made by an ISO certified automotive taillight assemblies manufacturer; compatible with 2019-2024 GMC Sierra 1500/2500HD/3500HD Taillight Assembly. 【Waterproof】: Full sealed heavy-duty housings are made of premium OEM Grade ABS plastic and reaches up to IP65-rated water-resistant to ensure excellent resistance to weather and impact that guarantees durability for years ahead. 【Safety】: Taillights give 200% increased brightness and visibility compared with the old one. Allowing you drive safer at night 【Certification】: S.A.E. (Society of Automotive) and D.O.T. (Department of Transportation) Approved to Ensure the Quality 【Note】: Our taillight assemblies are designed for direct and easy installation. Does not come with instruction manual. 【Part number】: 84565920 GM2801309. Fitment: Fit to 2019 2020 2021 2022 2023 2024 GMC Sierra 1500/2500HD/3500HD Taillight Assembly. < br > Waterproof: Full sealed heavy-duty housings are made of premium OEM Grade ABS plastic and reaches up to IP65-rated water-resistant to ensure excellent resistance to weather and impact that guarantees durability for years ahead < br > Safety: Taillights give 200% increased brightness and visibility compared with the old one. Allowing you to see further and drive safer at night < br > Certification: S.A.E. (Society of Automotive) and D.O.T. (Department of Transportation) Approved to Ensure the Quality < br > Note: Our taillight assemblies are designed for direct and easy installation. Does not come with instruction manual.