2025 Denali 2025 Hd Specs. The new 2025 gmc sierra hd pickup truck pulls your world with turbocharged power and an impressive lineup of trims that includes the first ever denali ultimate. Research the 2025 gmc sierra 2500 at cars.com and find specs, pricing, mpg, safety data, photos, videos, reviews and local inventory.
The denali trim moves to second place in the sierra hdโs hierarchy for the 2025 model year with the introduction of the new denali ultimate trim, available for both. Detailed specs and features for the 2025 gmc sierra 2500hd diesel denali ultimate including dimensions, horsepower, engine, capacity, fuel economy, transmission, engine.