Gmc Sierra 2500hd 2024 Denali. Detailed specs and features for the 2024 gmc sierra 2500hd diesel denali ultimate including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine. 2024 gmc sierra 2500hd denali ultimate, alpine umber full grain leather seat trim,gvwr 11 350 lbs.

The naturally aspirated 6.2l v8 l87, rated at 420. We’ve only tested a sierra 2500hd denali with the diesel engine, which earned 17 mpg on the highway.