Fitment: Compatible with GMC Sierra 1500 1999-2007.Compatible with GMC Sierra 2500 1999-2004.Compatible with GMC Sierra 1500 HD 2500 HD 3500 2001-2007.Compatible with GMC Yukon 1999-2006.Compatible with GMC Yukon XL 1500 2500 2000-2006.Compatible with GMC Sierra C3 2001.Does NOT Fit Denali Trims. For 2007, Fits Classic Models ONLY DURABILITY: Made of durable Polycarbonate and PP material and the impact resistant housing ensures reliable vibration resistance, UV protection and rain corrosion resistance. CLEAR VISIBILITY: Provides a cool look and excellent illumination, improves safety and high recognition, help you avoid traffic accidents. OE Standard:Meets the Original Equipment (OE) standards.Interchange Part Number: 15166756 15166757 125104011 125103011. 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. LED Headlights Compatible with GMC Sierra 1500 1999-2007, Fit GMC Yukon XL 1999-2006, Fit Sierra 1500HD 2500HD 3500 2001-2007, W/Signal Lamps, Clear Lens Chrome Housing Clear Reflector