GMC Sierra 2500 HD Extended Cab Pick-up

6.0 (268 KW, 364 PS) (09/2008-12/2013) 6.0 4WD (268 KW, 364 PS) (09/2008-12/2013) 6.0 CNG (225 KW, 306 PS) (09/2012-12/2013) 6.0 CNG 4WD (224 KW, 305 PS) (09/2001-12/2005) 6.0 CNG 4WD (225 KW, 306 PS) (09/2012-12/2013) 6.0 Flex (268 KW, 364 PS) (07/2014-12/2021) 6.0 Flex (268 KW, 364 PS) (09/2009-12/2013) 6.0 Flex 4WD (268 KW, 364 PS) (07/2014-12/2021) 6.0 Flex 4WD (268 KW, 364 PS) (09/2009-12/2013) 6.6 D (296 KW, 403 PS) (09/2010-12/2013) 6.6 D 4WD (268 KW, 364 PS) (09/2006-12/2007) 6.6 D 4WD (296 KW, 403 PS) (09/2010-12/2013) 8.1 4WD (246 KW, 335 PS) (09/2005-12/2007)