Introducing the 2026 GMC Sierra 2500HD AT4, a true powerhouse built to conquer any terrain. This rugged and capable truck is designed to exceed your expectations, offering unparalleled performance, advanced technology, and uncompromising style.- 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)- Bose Premium 7-Speaker Sound System- 120-Volt Bed Mounted Power Outlet- Power Sunroof- Hitch Guidance with Hitch View- in-Vehicle Trailering System AppBeneath the bold, aggressive exterior lies a heart of pure power. The Duramax 6.6L V8 Turbodiesel engine delivers an impressive 470 horsepower and an astounding 975 lb-ft of torque, ensuring you have the muscle to tackle any job or adventure. Paired with a 10-speed automatic transmission and a robust 4WD system, this Sierra 2500HD AT4 is ready to conquer the toughest terrain with ease.But the Sierra 2500HD AT4 is more than just raw power. It's a masterful blend of capability and technology, designed to make your life easier and your drives more enjoyable. The Bose Premium 7-Speaker Sound System provides a concert-quality listening experience, while the 120-volt bed-mounted power outlet allows you to power your tools or accessories on the job site. The available Power Sunroof lets you soak in the great outdoors, and the Hitch Guidance with Hitch View, along with the in-Vehicle Trailering System App, make towing a breeze.Step inside the cabin, and you'll be greeted by a world of comfort and convenience. Heated and ventilated front seats, a heated steering wheel, and dual-zone automatic climate control ensure you and your passengers stay cozy no matter the weather. The premium leather-appointed seating and the spacious, well-appointed interior provide a level of luxury you'd expect from a vehicle of this caliber.Safety is also a top priority with the Sierra 2500HD AT4. Features like Automatic Emergency Braking, Forward Collision Alert, and Rear Cross Traffic Alert work tirelessly to help keep you and your loved ones protected on the road.This is more than just a truck it's a statement of power, capability, and refined sophistication. The 2026 GMC Sierra 2500HD AT4 is the ultimate expression of what a heavy-duty pickup can be. Experience it for yourself and discover the true meaning of confidence behind the wheel. Price includes: $1000 - Buick & GMC Consumer Cash Program. Exp. 06/30/2026