VEHICLE COMPATIBILITY: for Cadillac Escalade ESV 2004-2006 for Cadillac Escalade EXT 2004-2006 for Cadillac Escalade 2004-2006 for Chevy Avalanche 1500 2003-2006 for Chevy Avalanche 2500 2003-2006 for Chevy Silverado 1500 2003-2006 for Chevy Silverado 1500 HD 2003-2006 for Chevy Silverado 2500 2003-2006 for Chevy Silverado 2500 HD 2003-2006 for Chevy Silverado 3500 2003-2006 for Chevy Silverado 1500 2500 HD Classic 2007 for Chevy Silverado 3500 Classic 2007 for Chevy Suburban 1500 2003-2006 for Chevy Suburban 2500 2003-2006 for Chevy Tahoe 2003-2006 for GMC Sierra 1500 2003-2006 for GMC Sierra 1500 HD 2003-2006 for GMC Sierra 2500 2003-2004 for GMC Sierra 2500 HD 2003-2006 for GMC Sierra 3500 2003-2006 for GMC Sierra 1500 3500 Classic 2007 for GMC Sierra 1500 2500 HD Classic 2007 PRODUCT INFORMATION: Material: Metal, Plastic Color: Black, Silver Tone Size: 6.3x4cm / 2.48"x1.57" Size: 3.5x2cm / 1.38"x0.79" OE Number.:15298923/15298924PERFORMANCE: Direct replace the old or broken one. Made of quality metal, durable and reliable in use. Not easy to rust, corrode or peel. Install a new Ignition Lock Cylinder Switch and Front Door Lock, then let the auto parts in it work better. Designed to make the car work well and improve work performance, aim for long life service. NOTICE: a. This is a non-OEM product, accessory ONLY! b. Please check your car model, and reference our product before purchase Before. c. Due to manual measurement, the size deviation is about 1-2 mm.