Conquer the Road with the 2026 GMC Sierra 3500HD AT4: Unmatched Power, Comfort, and Advanced Safety for the Ultimate Driving Experience

The 2026 GMC Sierra 3500HD AT4 is designed for those who demand more from their truck. With its commanding 6.6L V8 engine, delivering an impressive 401 horsepower and 464 lb-ft of torque, this powerhouse is ready for any challenge. The 10-speed automatic transmission ensures smooth handling, while the 4x4 drivetrain provides superior traction on any terrain. The Off-Road High Clearance Step and Gooseneck/5th Wheel Prep Package make it perfect for adventurous journeys and heavy-duty towing tasks.

Inside, the Sierra 3500HD AT4 offers unparalleled comfort with leather seats, heated and cooled front seats, and a heated steering wheel. The 15" Diagonal Head-Up Display and Rear Camera Mirror keep you informed and aware, while the 13.4" Premium GMC Infotainment System with Google built-in apps ensures seamless connectivity. Safety is paramount, featuring advanced systems like Front Collision Mitigation, Blind Spot Monitor, and Lane Departure Warning.

This truck is not just about power; it’s about providing a premium driving experience with its AT4 Premium Plus Package, including a power sunroof and technology enhancements. The 2026 GMC Sierra 3500HD AT4 is your ultimate partner on the road.