"Elevate your off-road adventures with the 2026 GMC Sierra 2500HD AT4X. This powerhouse is engineered to conquer any terrain, with a Duramax 6.6L V8 Turbodiesel engine delivering 470 hp and an impressive 975 lb-ft of torque. Equipped with a 10-speed automatic transmission and 4-wheel drive, this Sierra 2500HD AT4X is ready to tackle the toughest jobs and most challenging conditions. - Adaptive Cruise Control - Android Auto - Apple CarPlay - Backup Camera - Bluetooth - Moonroof / Sunroof - Remote Start Designed for the ultimate in capability and comfort, the Sierra 2500HD AT4X offers an impressive array of premium features. Enjoy the convenience of the Bose Premium Series 12-Speaker System, SiriusXM with 360L Trial Subscription, and Steering Wheel Audio Controls. Stay connected with the Wireless Charging and Wireless Phone Projection, while the Multicolor 15"" Diagonal Head-Up Display keeps vital information in your line of sight. For added versatility, the Sierra 2500HD AT4X is equipped with the Gooseneck/5th Wheel Prep Package, Snow Plow Prep/Camper Package, and a host of other capabilities. The Spray-on Pickup Bedliner with GMC Logo and 120-Volt Bed Mounted Power Outlet make this truck a true workhorse, ready to handle any task with ease. Experience the ultimate in off-road performance, capability, and comfort with the 2026 GMC Sierra 2500HD AT4X. Visit Woody Buick GMC of Gurnee, an 11-time GM Dealer of the Year and Mark of Excellence recipient, and Dealer Rater 2025 Dealer of the Year to schedule a test drive! See for yourself why this J.D. Power 2026 Dealer of Excellence is Chicagoland's most awarded dealer. Take advantage of our award-winning service and the best incentives around! We have a 2026 GMC Sierra 2500HD AT4X on sale for you!"