[COMPATIBLE WITH] 2007-2018 Chevy Silverado / GMC Sierra 1500; 2007-2019 Chevy Silverado / GMC Sierra 2500 HD 3500 HD; 2019 Silverado 1500 LD / Sierra 1500 Limited; Diesel models with DEF tanks | Double Cab [Cab Size Note: Only fit Extended Cab & Double Cab with 2 full-size front doors & 2 narrower rear doors. ].