3rd Brake Light LED for 2007-2021 GMC Sierra 3500 (one), XPR (720 lumens) Chrysler Because these headlights have a

Because these headlights have a DRL feature

withstanding high pressure washing and steam cleaning

unfortunately

while their amber LED-powered optics offer superior brightness

3rd Brake Light LED for 2007-2021 GMC Sierra 3500 (one), XPR (720 lumens) Chrysler Because these headlights have aUpgrade. Add more light output and a modern appearance to your vehicle with the 921 XPR 3rd brake light bulb. Each of the four sides of this bulb is populated with 4 high power LEDs for maximum brightness. Housed in an aluminum casing with a textured finish for superior heatsinking properties the XPR will last for years to come. Best of all installation only takes minutes simply take out your factory bulb and the XPR will fit snugly in the socket.