1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 9-7X, Avalanche 1500 Envoy Envoy XL Envoy XUV Escalade Escalade ESV, Escalade EXT Express 1500 Van Express 2500 Van Express 3500 Van, H2 Rainier Savana 1500 Van Savana 2500 Van Savana 3500 Van, Sierra 1500 Sierra 1500 Classic Sierra 1500 HD, Sierra 1500 HD Classic Sierra 2500 Sierra 2500 HD, Sierra 2500 HD Classic Sierra 3500 Sierra 3500 Classic, Silverado 1500 Silverado 1500 Classic Silverado 1500 HD, Silverado 1500 HD Classic Silverado 2500 Silverado 2500 HD, Silverado 2500 HD Classic Silverado 3500 Silverado 3500 Classic, SSR Suburban 1500 Suburban 2500 Tahoe Trailblazer Trailblazer EXT, Yukon Yukon XL 1500 Yukon XL 2500 Buick Cadillac Chevy GMC Hummer, Saab 12580196 419-109 Serpentine Belt Tensioner with Pulley, V8 4.8L V8 5.3L V8 6.0L V8 6.2L C3 Denali SS