Compatibility - 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 Compatible with All Denali Trims.For 2007, Compatible with Classic Models ONLY High Quality - Made of high quality materials,durable and long service life. OE Standard - Replacement Part Number:15850352,15850351.Superior Durability and Impact Resistance.Meets the Original Equipment (OE) standards, ensuring replacement fit just like the original. Installation - Professional tools and methods are required for installation, Professional installation is highly recommended. Protection - Protects your car's headlights from breakage and has a dustproof and waterproof effect.