Denali Ultimate 2024 Hd. Detailed specs and features for the 2024 gmc sierra 3500hd diesel denali ultimate including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine. View local inventory and get a quote from a dealer.

Explore the 2025 gmc sierra 2500 hd & 3500 hd denali luxury truck. At the top of the range, there’s now the denali ultimate.