Precise Fit: YITAMOTOR side steps are specifically built for 2007-2018 Chevrolet Silverado/GMC Sierra 1500 Crew Cab & 2007-2019 2500HD 3500HD Crew Cab; Gas Engine ONLY, Not fit for Diesel Models Equipped with DEF Tank Unmatched Strength: YITAMOTOR running board is crafted from high-strength stainless steel for exceptional corrosion & rust resistance, stability and long-term durability; Each side can handle up to 500lb to offer reliable support for all users Versatile Functionality: Our 6-inch wide step bars provide convenient access with generous stepping space; Special style better suits your truck and can adapt well to enhance the aesthetics of the body Enhanced Durability: YITAMOTOR nerf bars feature a textured powder coating for enhanced rust resistance and an aggressive appearance; The bump design further improves slip resistance, ensuring both durability and style for your truck Hassle-Free Installation: No drilling or cutting required; The slider is designed for position adjustments back and forth on the vehicle for a smoother installation