GMC HID Bulb Guide

Headlight out? If you have a factory-HID equipped GMC and are looking for a replacement part, but dont know the size or type, find your model number here! If you are not sure if your vehicle has factory-installed HID's, or you have the halogen model of these vehicles and are looking to upgrade with a conversion kit, get a free compatibility check using the form below or check out our complete parts catalog.