1Replacing OE numbers for reference: 25168491, replacement for Cadillac DeVille/Eldorado/Escalade/Seville. 2Measure the amount of air entering the engine, helps to determine the amount of fuel to inject. 3Conducive to reducing exhaust and air supply, which is an important component for your car. 4It has extremely small pressure loss and large measurable flow range, dependable to use. 5Easy to install, no complicated tools required, convenient for using, save time and effort. Item Type: Mass Air Flow SensorMaterial: ABS OE: 25168491 Compatible OE: 213-4160, 213-364, 868411, SU1287, SU9516, 2134160, MF8411, 28411M, 748411, 8253184110, 25168491, 25318411, AF10043, 15904068 Fitment: 2004-2007 Replacement for Buick Rainier 5.3L 2004-2005 Replacement for Cadillac CTS 5.7L 2000-2005 Replacement for Cadillac DeVille 2000-2002 Replacement for Cadillac Eldorado 2002-2005 Replacement for Cadillac Escalade 5.3L 2002-2006 Replacement for Cadillac Escalade 6.0L 2003-2006 Replacement for Cadillac Escalade ESV 2002-2006 Replacement for Cadillac Escalade EXT 2000-2004 Replacement for Cadillac Seville 2002-2006 Replacement for Chevrolet Avalanche 1500 2002-2006 Replacement for Chevrolet Avalanche 2500 2001-2004 Replacement for Chevrolet Corvette 2005-2007 Replacement for Chevrolet Corvette 6.0L 1999-2006 Replacement for Chevrolet Silverado 1500 2007 Replacement for Chevrolet Silverado 1500 Classic 2001-2006 Replacement for Chevrolet Silverado 1500 HD 2007 Replacement for Chevrolet Silverado 1500 HD Classic 1999-2004 Replacement for Chevrolet Silverado 2500 6.0L 2001-2006 Replacement for Chevrolet Silverado 2500 HD 6.0L, 8.1L 2007 Replacement for Chevrolet Silverado 2500 HD Classic 6.0L, 8.1L 2001-2006 Replacement for Chevrolet Silverado 3500 6.0L, 8.1L 2007 Replacement for Chevrolet Silverado 3500 Classic 6.0L, 8.1L 2003-2006 Replacement for Chevrolet SSR 2000-2006 Replacement for Chevrolet Suburban 1500 5.3L 2006 Replacement for Chevrolet Suburban 6.0L 2001-2006 Replacement for Chevrolet Suburban 2500 6.0L, 8.1L 2000 Replacement for Chevrolet Suburban 2500 6.0L 2000-2006 Replacement for Chevrolet Tahoe 4.8L, 5.3L 2006-2008 Replacement for Chevrolet Trailblazer 5.3L, 2006-2009 Replacement for Chevrolet Trailblazer 6.0L 2003-2006 Replacement for Chevrolet Trailblazer EXT 5.3L 2003-2004 Replacement for GMC Envoy 2005-2009 Replacement for GMC Envoy 5.3L 2003-2006 Replacement for GMC Envoy XL 5.3L 2004-2005 Replacement for GMC Envoy XUV 5.3L 1999-2006 Replacement for GMC Sierra 1500 4.3L, 4.8L, 5.3L 2002-2006 Replacement for GMC Sierra 1500 6.0L 2007 Replacement for GMC Sierra 1500 Classic 2001-2006 Replacement for GMC Sierra 1500 HD 2007 Replacement for GMC Sierra 1500 HD Classic 1999-2004 Replacement for GMC Sierra 2500 2001-2006 Replacement for GMC Sierra 2500 HD 6.0L, 8.1L 2007 GMC Replacement for Sierra 2500 HD Classic 6.0L, 8.1L 2001-2006 Replacement for GMC Sierra 3500 6.0L, 8.1L 2007 Replacement for GMC Sierra 3500 Classic 6.0L, 8.1L 2000-2006 Replacement for GMC Yukon 4.8L, 5.3L 2001-2006 Replacement for GMC Yukon 6.