2015 GMC Sierra headlight or lamp fits from 2007 to 2013. One right side, original, but its glass is broken and can be replaced normally. Transmission cooler, original. Headlight decoration with the switch... Two sets of Sierra headlights or lamps fit from models 2014 to 2018, Taiwanese. The first set has one of the lamps with a weak light, I don't know if the problem is with the lamp or the lens. The second set is excellent. Sierra 2015 headlight lenses, original.