2026 GMC Sierra 2500HD AT4

The 2026 GMC Sierra 2500HD AT4 is a rugged and capable heavy-duty pickup that's ready to take on any challenge. Powered by the legendary Duramax 6.6L V8 Turbodiesel engine, this Sierra 2500HD delivers an impressive 470 horsepower and an astounding 975 lb-ft of torque, providing the muscle you need for the toughest jobs.<br><br>- 6.6L V8 Diesel Turbocharged (Duramax) (B20-Diesel Compatible) (Includes (K05) Engine Block Heater) (470 hp [350.5 kW] @ 2800 rpm, 975 lb-ft of torque [1322 Nm] @ 1600 rpm)<br><br>Beyond its raw power, this Sierra 2500HD AT4 is packed with premium features designed to elevate your driving experience. The Bose Premium 7-Speaker Sound System, Wireless Charging, and 15 Multicolor Head-Up Display are just a few of the advanced technologies that will keep you entertained and informed on the road. And with the Trailer Cam Provisions, Trailer Viewing Software, and Trailer Side Blind Zone Alert, towing your gear has never been easier or safer.<br><br>For those who crave adventure, the AT4 Off-Road Package delivers. With features like the 2-Speed Active Transfer Case, Off-Road Suspension, and Hill Descent Control, this Sierra 2500HD is ready to tackle any terrain with confidence. The Spray-on Bedliner and Off-Road High Clearance Step further enhance the AT4's rugged capabilities, ensuring you can haul your gear with ease.<br><br>Step inside the Sierra 2500HD AT4, and you'll be greeted by a cabin that combines premium comfort and functionality. The Perforated Leather-Appointed Front Seat Trim, Heated and Ventilated Front Seats, and Heated Rear Seats provide a level of luxury you'd expect from a premium vehicle. And with the 10-Way Power Driver and Passenger Seats, you'll be able to find your perfect driving position with ease.<br><br>Safety is also a top priority in the Sierra 2500HD AT4. With features like Automatic Emergency Braking, Forward Collision Alert, and Rear Cross Traffic Alert, you can drive with confidence, knowing that you and your passengers are well-protected.<br><br>Whether you're t