Denali 2024 Hd. Detailed specs and features for the 2024 gmc sierra 2500hd diesel denali ultimate including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine. The denali trim moves to second place in the sierra hd’s hierarchy for the 2024 model year with the introduction of the new denali ultimate trim, available for both.

At the top of the range, there’s now the denali ultimate. The new 2024 gmc sierra hd pickup truck pulls your world with turbocharged power and an impressive lineup of trims that includes the first ever denali ultimate.