2025 Gmc Sierra 2500hd Denali
2025 Gmc Sierra 2500hd Denali. Compare all 2025 gmc sierra 1500 trims in one place. The gmc sierra ev denali just got even better.
2025 gmc sierra 2500hd and 3500hd pickup trucks equipped with the denali ultimate trim are the only truck in gmc’s lineup that come standard with the 6.6l l5p duramax diesel engine, producing 470. Discover the 2025 gmc sierra 2500hd & 3500hd denali and the first ever denali ultimate, with 30,800 lbs max towing, premium comfort, and more.