[Replacement Part Number] 12589226, 12498544, 26190PT, 54442, 12589226. Please confirm that the old part number matches the one listed before making a purchase. [Compatibility]The head gasket is compatible with Silverado 1500 2005-2013 5.3L, Sierra 1500 2005-2013 5.3L, Tahoe 2008-2013 5.3L, Silverado 1500 2007-2013 4.8L, Tahoe 2007 2014, Express 2500 2008-2017 4.8L, Suburban 1500 2010-2014, Suburban 1500 2007-2009 5.3L, Yukon 2007-2014 5.3L, Avalanche 2007-2009 5.3L, Sierra 1500 2007-2013 4.8L, Yukon XL 1500 2007-2014 5.3L, Corvette 2002-2004, Avalanche 2010-2013, Savana 2500 2008-2017 4.8L, Silverado 1500 Classic 2007 5.3L, Express 3500 2008-2017 4.8L, Savana 3500 2008-2017 4.8L, Impala 2006-2009 5.3L, Express 1500 2009-2014 5.3L, Envoy 2005-2009 5.3L, Tahoe 2008-2009 4.8L, Camaro 2002 5.7L, Firebird 2002 5.7L, Sierra 1500 Classic 2007 5.3L. [Compatibility] The head gasket is compatible with Grand Prix 2005-2008 5.3L, GTO 2004, Monte Carlo 2006-2007 5.3L, Savana 1500 2009-2014 5.3L, Yukon 2007-2009 4.8L, Trailblazer 2006-2008 5.3L, H3 2008-2010 5.3L, Colorado 2009-2012 5.3L, CTS 2004-2005 5.7L, Rainier 2005-2007 5.3L, 9-7x 2005-2009 5.3L, Canyon 2009-2012 5.3L, Trailblazer EXT 2005 5.3L, LaCrosse 2008-2009 5.3L, H3T 2009-2010 5.3L, Ascender 2005-2006 5.3L, II 2002-2004. [Superior Sealing] The engine gasket is made of high-quality materials, including multi-layeredsteal and MLS head gaskets. It has excellent sealing and non-stick wear-resistant layers and can withstand high pressure, high temperature, and corrosive. [Customer Service] We provide high-quality customer service and support. If you have any questions or concerns about our products, please feel free to contact us. You can trust our products and services completely.