2011 GMC Sierra 3500HD III (GMT900, facelift 2011) Crew Cab Long Box: Engine bay showing alternator, fluid reservoirs, and mechanical components

Close-up view of an engine bay featuring a visible alternator, multiple fluid reservoirs, and various engine mechanical components and wiring under the lifted hood.

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

View 31 images of the 2011 GMC Sierra 3500HD III (GMT900, facelift 2011) Crew Cab Long Box

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