Fitment：Fit For GMC Sierra 1500 2014-2018. Fit For GMC Sierra 2500 HD 2015-2019. Fit For GMC Siera 3500 HD 2015-2019 (2-Door Regular Cab，4-Door Extended Cab， 4-Door Crew Cab). Not Compatible with 3500 HD Dually Models. Not Compatible with 2014 Old Body Style Models. Not Compatible with Models w/ Factory LED Tail Lights. OE Standard:Meets the Original Equipment (OE) standards.Interchange Part Number:84288725, 84288724, GM2800281C, GM2801281C High quality materials: The taillights are made of superior ABS and PMMA materials, which enhance wear resistance and aging resistance ABSand are not easily damaged High performance: The tail lights have passed DOT/SAE certification and are suitable for various bumpy and undulating road surfaces. The lens will not turn yellow even after prolonged use Product specifications: The package includes a pair of tail lights (driver and passenger side), excluding bulbs. Bulb specifications-Brake light: 7443（12V,27/7W), Turn Signal Light: 7443（12V,27/7W), Side marker Light: W5W 12V5W, Reversing Lamp: 921（12V,17W) Tail Lights Brake Lamps Pair Smoke Lens w/o Bulbs Fit For GMC Sierra 1500 2014-2018. Fit For GMC Sierra 2500 HD 2015-2019. Fit For GMC Siera 3500 HD 2015-2019 (2-Door Regular Cab，4-Door Extended Cab， 4-Door Crew Cab). Not Compatible with 3500 HD Dually Models. Not Compatible with 2014 Old Body Style Models. Not Compatible with Models w/ Factory LED Tail Lights.