Replacement Headlight Switch: Headlight dimmer switch located on the left side of your instrument panel, controls headlights, door panel lights, dome lamps, and the dash dimmer light. High Reliability. Direct replacement for your factory headlamp switch. Applicable Vehicles: Compatible with 2003 2004 2005 2006 Chevy Silverado 1500 1500HD 2500HD 3500 Suburban 1500 2500 Tahoe Avalanche 1500 2500, 2007 Silverado 1500 1500HD 2500HD 3500 Classic, 2003-2004 Silverado 2500, 2003-2006 GMC Sierra 1500 1500HD 2500HD 3500 Yukon, 07 Sierra 1500 1500HD 2500HD 3500 Classic, 03-04 Sierra 2500, 03-06 Cadillac Escalade. Replace OE Number: 19381535, D1595G, 15194803, 1802-311218, 1S8489, 53-22773. This headlight control is manufactured to the OE specification to provide factory-fresh appearance and direct-fit, which features BLUE LED indicator light symbols for easy operation at night. OEM Design & Direct Fit: Utilizing quality materials and advanced technology, it meets or exceeds OE standards and is a direct replacement. Plug-and-play design makes it easy to install, and the OE connector helps ensure a strong positive connection. Headlight dashboards are vehicle test-tested to ensure long-term reliability. Buy with Confidence: The package includes 1 * Headlight Switch. If you have any questions about this product, pls free feel to contact us. We will try our best to solve your problem as soon as possible and make you satisfied! FITS THE FOLLOWING VEHICLES： 2003-2006 Chevy Avalanche 1500 2500 2003-2006 Chevy Silverado 1500 1500HD 2007 Chevy Silverado 1500 Classic 2007 Chevy Silverado 1500 HD Classic 2003-2004 Chevy Silverado 2500 2003-2006 Chevy Silverado 2500 HD 2007 Chevy Silverado 2500 HD Classic 2003-2006 Chevy Silverado 3500 2007 Chevy Silverado 3500 Classic 2003-2006 Chevy Suburban 1500 2500 2003-2006 Chevy Tahoe 2003-2006 GMC Sierra 1500 1500HD 2007 GMC Sierra 1500 Classic 2007 GMC Sierra 1500 HD Classic 2003-2004 GMC Sierra 2500 2003-2006 GMC Sierra 2500 HD 2007 GMC Sierra 2500 HD Classic 2003-2006 GMC Sierra 3500 2007 GMC Sierra 3500 Classic 2003-2006 GMC Yukon 2003-2006 GMC Yukon XL 1500 2500 2003-2006 Cadillac Escalade 2003-2006 Cadillac Escalade ESV EXT 2003-2006 Hummer H2