2025 Gmc Denali Ultimate 2025 Dually Price. The 2025 gmc sierra hd offers 6 trim levels: Find new 2025 gmc sierra 3500hd denali ultimate inventory at a truecar.

View local inventory and get a quote from a dealer in. Detailed specs and features for the 2025 gmc sierra 2500hd diesel denali ultimate including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine.