【VEHICLE COMPATIBILITY】Headlights Assembly Compatible with 2014-2018 GMC Sierra 1500 Base / Denali / SLE / SLT; 2015-2019 GMC Sierra 2500HD Base / Denali / SLE / SLT; 2015-2019 GMC Sierra 3500HD Base / Denali / SLE / SLT / Chassis models only. Does Not Fit Models with LED DRL Headlights and 2014 Old Body Style Models. High / Low beam bulb type: H7 (INCLUDED); Signal Light: WY21/5W (NOT INCLUDED). 【PREMIUM HOUSING MATERIALS】 This headlamp is sturdy constructed with a fully sealed heavy duty housing made of high quality OEM grade polycarbonate plastic, waterproof up to IP65, ensuring excellent weather and impact resistance. Well built to provide bright lighting. New lenses and reflectors provide better lighting and ensure a pleasant and comfortable driving experience 【SAFETY & DURABILITY】Made of premium materials that meet or exceed OEM requirements. Micro-prism reflectors and chrome finishes within the headlights increase the light's reflectivity, making it easier for oncoming vehicles to notice you at night. Give you a safer comfortable driving experience. Stable characteristics and high reliability 【EASY INSTALLATION】Plug-n-play installation. Direct Bolt-On OE Fitment or Replacement for the Stock Unit; Requires No Modification or Drilling. 【FITMENT】OEM Part Number#: 23130718, 23130717; Partslink Number#: GM2503394, GM2502394. JSBOYAT Fits for [Non-LED DRL Model] 2014-2018 GMC Sierra 1500 15-19 2500HD 3500HD OE Style Projector Headlight Assembly Replacement Bulbs Included