Gmc 2025 Hd Denali Ultimate 2025 Model. The 2025 gmc sierra 2500hd denali ultimate carries its 8,346 pounds of mass to 60 mph in a shockingly quick 6.5 seconds. Available maximum fifth wheel/gooseneck rating of up to 9584 kg.

Detailed specs and features for the 2025 gmc sierra 2500hd diesel denali ultimate including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine. Available maximum fifth wheel/gooseneck rating of up to 9584 kg.