The 2024 GMC Sierra 2500HD AT4 is built for drivers who demand serious power, off-road capability, and premium comfort. Equipped with a rugged off-road suspension, skid plates, and advanced 4WD technology, the AT4 is ready to tackle tough terrain while maintaining a refined ride. Available with the powerful 6.6L Duramax Turbo-Diesel V8 paired with a 10-speed automatic transmission, it delivers exceptional towing capability and performance. Inside, premium leather seating, advanced trailering technology, and a large 13.4-inch touchscreen create a truck thats as comfortable as it is capable.
