Burco 4001HS Flat Driver Side Power Replacement Mirror Glass for Chevy Avalanche, Silverado 1500, Silverado 2500, Silverado 3500, Suburban 2500, GMC Sierra 1500, Sierra 2500, Sierra 3500, Yukon XL WHAT'S INCLUDED - Included is the Driver's side Flat mirror glass with lasered holes in the reflective coating. Includes heat grid, terminals and a turn signal icon. MEASURE YOUR GLASS - This mirror glass measures 11.1875" diagonally (Longest diagonal dimension from top corner to opposing bottom corner). It is very important to measure your glass to ensure that you are ordering the correct mirror for your vehicle. Also, pay attention to the shape of your mirror and compare to the shape of the replacement mirror. It is common to have multiple Burco Redi Cuts mirror options for your vehicles specific make, model, & year SUPERIOR QUALITY  Burco Mirror Glass Replacements are an economical and quality alternative to high-priced OEM mirror assemblies. All Burco Mirror Glass is composed of high quality glass manufactured in the USA using high-end CNC equipment which meets or exceeds OEM specifications. EASY INSTALLATION  Each Burco Mirror Glass includes an installation code on the outside of the box and a step-by-step instruction sheet inside the box to make the installation of your new glass as simple as possible. Installation codes are specific to each part, so please follow the install code that corresponds to your mirror glass. The instruction sheet can also be found below in the technical details. VEHICLE FITMENT  2003-2004 Chevy Silverado 2500. Fits 2003-2004 GMC Sierra 2500. Fits 2003-2005 Chevy Avalanche 1500. Fits 2003-2005 Chevy Avalanche 2500. Fits 2003-2005 Chevy Silverado 1500. Fits 2003-2005 Chevy Silverado 1500 HD. See Below for Full List of Vehicles.