APPLICABLE MODEL-Compatible with 99-07 GMC Sierra 1500/ 01-07 GMC Sierra 1500 HD/ 99-04 GMC Sierra 2500/ 01-07 GMC Sierra 2500 HD 3500/ 99-06 GMC Yukon/ 00-06 GMC Yukon XL 1500 2500/ 2001 GMC Sierra C3(Does NOT Fit Denali Trims. For 2007, Fits Classic Models ONLY). Interchange Part Number: Compatible with 15166756 15166757 125104011 125103011. DURABILITY: Strict testing throughout production ensures our headlights perform well enough in any conditions. SEALED DESIGN: Waterproof construction ensures that our headlights are completely sealed to prevent outside moisture and work well in any bad weather, such as rain, snow, sand, etc. EASY INSTALLATION: Requires no modification or drilling / bulbs are NOT included,Professional installation would be highly recommended. After-sales Service: If there is any problem with the product, please feel free to let us know. We will solve the problem for you. LED DRL Headlights Compatible with Gmc Sierra 1500 1999-2007 /Fit GMC Yukon XL 1500 2500 1999-2006 Black Clear Headlights W/Bumper Signal Lamps（Smoky lens Black Housing Amber Reflector）