GMC Logo2011 GMC Sierra 3500HD III (GMT900, facelift 2011) Extended Cab Long Box: Engine bay with hood open showing truck engine components

Engine bay with hood open showing truck engine components

Engine compartment with detailed view of engine and components including alternator, battery, and fluid reservoirs underneath an open hood.

View Dimensions of the 2011 GMC Sierra 3500HD III (GMT900, facelift 2011) Extended Cab Long Box

View 30 images of the 2011 GMC Sierra 3500HD III (GMT900, facelift 2011) Extended Cab Long Box

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Small red car