2025 Gmc Sierra 2500hd At4x Specs. Find information on performance, specs, engine, safety and more. The motortrend buyer's guide has the 2025 gmc sierra 2500hd specs you need, from dimensions and cargo space to power and mpgs.
See body style, engine info and more specs. View detailed specs, features and options for the 2025 gmc sierra 2500hd 4wd crew cab 159 at4x at u.s.