1999-2006 GMC Sierra LED 3rd Brake Light Bulb: Looking for an upgraded LED 3rd Brake Light Bulb from a reputable brand and value the fact that we've actually tested them on your truck? Our HR Tested kits include all the right components to ensure perfect fit, function, and performance from the upgrade. At Headlight Revolution, we do 1999-2006 GMC Sierra LED lighting upgrades better!

NOTICE: IF you are using the stock third brake light housing, the install is simple: Unscrew it from the outside and pull off the cover. If youre using an aftermarket third brake light housing you might have to drop the headliner to get to the bulbs.

Included: is ONLY the TWO LED bulbs. This kit comes with everything you need to do the install, and just watch the video to see how it's done!

HR Tested: Here at Headlight Revolution, we've spent the time to install and test all HR Tested products, so we know it'll work exactly as shown and right out of the box! Not only that, but we don't favor one particular brand. We just deliver the best product for the application, period. Be sure to reference our install videos for helpful tips on making the installation process quick, painless, and clear. HR Tested: We ensure fitment and function. You do the install. For other compatible upgrades, use the Buyers Guide on our homepage!