PowertraxPRO Retractable Tonneau Cover Retractable Tonneau Cover; Rugged Aluminum Construction CHEVROLET GMC SIERRA 1500 SIERRA 2500 HD SIERRA 3500 HD SILVERADO 1500 SILVERADO 2500 HD SILVERADO 3500 HD DENALI LS LT LTZ SL SLE SLT WT 2007 2008 2009 2010 2011 2012 2013 2014 4.3L (262) Vortec 4.3L LU3 (262) Vortec 4.3L LU3 (4293cc) Vortec 4.8L GEN IV Flex L20 Vortec (294) 4.8L GEN IV LY2 Vortec (294) 5.3L GEN IV Flex LC9 Vortec (325) 5.3L GEN IV Flex LMG Vortec (325) 5.3L GEN IV LH6 Vortec (325) 5.3L GEN IV LY5 Vortec (325) 6.2L Flex L9H (376) 6.6L Duramax Turbo Diesel LGH (403) 6.6L Duramax Turbo Diesel LML (400) 6.6L Duramax Turbo Diesel LML (403) 6.6L Duramax Turbo Diesel LMM (403) 6L GEN IV CNG LC8 Vortec (364) 6L GEN IV Flex L96 Vortec (364) 6L GEN IV L76 Vortec (364) 6L GEN IV L96 Vortec (364) 6L GEN IV LC8 Vortec (364) 6L GEN IV LY6 Vortec (364) CNG DIESEL FLEX GAS Retrax Retrax PowertraxPRO Retractable Tonneau Cover - 50422 50422 Tonneau Cover
