【VEHICLE COMPATIBILITY】Headlights Assembly Fit for 2014 2015 2016 2017 2018 GMC Sierra 1500 Base / Denali / SLE / SLT models only 2015 2016 2017 2018 2019 GMC Sierra 2500 HD Base / Denali / SLE / SLT models only; 2015-2019 GMC Sierra 3500HD Base / Denali / SLE / SLT models only;Not Compatible w/ models w/ factory LED Day Time Running Lights; Not Compatible w/ 2014 Classic Body Style. High beam/Low beam bulb type: H7(INCLUDED); Signal Light: WY21(NOT INCLUDED). 【HIGH STANDARD】High-quality driver and passenger side halogen type headlights meet all high-standard safety requirements. The upgraded housing is impact and heat resistant, ensuring better durability compared to other headlamps. Superior lenses have good light transmission, high toughness and excellent UV resistance to prevent yellowing and cracking. 【BRIGHTER LIGHTING & SAFETY REFLECTOR】Brand new headlights assembly gives 300% increased brightness compared with the stock unit. Allowing you to see better and drive safer at night. Furthermore, the cool design keep your car looking good on the road. 【WEATHER SEALING】The fully sealed structure improves the waterproof level, effectively prevents moisture from entering the interior of the headlight, and prolongs the service life. Thanks to the high temperature resistant polycarbonate material, it can work well in any bad weather such as rain, snow, sand, etc. 【EASY & FAST INSTALLATION】Plug-n-play installation. Direct Bolt-On OE Fitment or Replacement for the Stock Unit; Requires No Modification or Drilling. Installation instruction is not included. FITMENT: OEM Part Number#: ‎22130717, 22130718; Partslink Number#: ‎GM2503394, GM2502394 BRYGHT Fits for 2014 2015 2016 2017 2018 GMC Sierra 1500 Base/Denali/SLE/SLT 15-19 2500 3500 HD Headlight Assembly [NON LED DRL TYPE] Projector OE Style Replacement LH Driver Side with Bulbs