Application2009-2013 compatible for Cadillac Escalade 6.0L 2009-2014 compatible for Cadillac Escalade 6.2L 2009-2013 compatible for Cadillac Escalade ESV 6.2L 2009-2013 compatible for Cadillac Escalade EXT 6.2L 2008-2013 compatible for Chevrolet Avalanche 5.3L 2008-2009 compatible for Chevrolet Avalanche 6.0L 2008-2012 compatible for Chevrolet Silverado 1500 4.8L 2008-2012 compatible for Chevrolet Silverado 1500 5.3L 2008-2012 compatible for Chevrolet Silverado 1500 6.0L 2009-2012 compatible for Chevrolet Silverado 1500 6.2L 2008-2012 compatible for Chevrolet Silverado 2500 HD 6.0L 2008-2011 compatible for Chevrolet Silverado 3500 HD 6.0L 2008-2013 compatible for Chevrolet Suburban 1500 5.3L 2008-2009 compatible for Chevrolet Suburban 1500 6.0L 2008-2011 2013 compatible for Chevrolet Suburban 2500 6.0L 2008-2009 compatible for Chevrolet Tahoe 4.8L 2008-2013 compatible for Chevrolet Tahoe 5.3L 2008-2013 compatible for Chevrolet Tahoe 6.0L 2008-2009 compatible for Chevrolet Tahoe 6.2L 2008-2012 compatible for GMC Sierra 1500 4.8L 2008-2012 compatible for GMC Sierra 1500 5.3L 2008-2012 compatible for GMC Sierra 1500 6.0L 2008-2012 compatible for GMC Sierra 1500 6.2L 2008-2011 compatible for GMC Sierra 2500 HD 6.0L 2008-2011 compatible for GMC Sierra 3500 HD 6.0L 2008-2009 compatible for GMC Yukon 4.8L 2008-2014 compatible for GMC Yukon 5.3L 2008-2013 compatible for GMC Yukon 6.0L 2009-2014 compatible for GMC Yukon 6.2L 2008-2014 compatible for GMC Yukon XL 1500 5.3L 2008-2009 compatible for GMC Yukon XL 1500 6.0L 2008-2014 compatible for GMC Yukon XL 1500 6.2L 2008-2013 compatible for GMC Yukon XL 2500 6.0LSpecification- OEM & Part Number: 12609457, 12611165,12569429, 12573005, 12573167, 234-4668, 234-4256, 234-4651, 2344256, 2344651, 234-4407, 213-4229 - Type: Mass Airflow Sensor (MAF Sensor). - Quantity: 4Pcs Oxygen Sensors(Upstream & Downstream) as Pictured. - Warranty:one year warranty for any manufacture defect. - Condition: Brand New. - Fitment Type: Direct Replacement. - Location: Upstream & Downstream.Note- Please check OE# with listed pictures above and make sure it fits you vehicle. - Upstream location is between the catalytic converter and the engine. - Downstream location is between the catalytic converter and the tailpipe.