2026 GMC Sierra 2500 HD AT4X

From the dealer

Built to conquer the toughest jobs and the most demanding trails, this 2026 GMC Sierra 2500HD AT4X 4WD is the ultimate heavy-duty pickup for drivers who expect uncompromising capability without sacrificing luxury. Finished in striking Summit White over a premium Obsidian Rush Leather Interior, this low-mileage AT4X blends rugged off-road performance with first-class comfort and cutting-edge technology. With only 12,385 miles, this Sierra is powered by the legendary Duramax 6.6L V8 Turbo-Diesel, paired with the renowned Allison 10-Speed Automatic Transmission, delivering incredible horsepower, massive torque, and exceptional towing confidence. Whether you're hauling heavy equipment, towing your RV, or exploring remote backroads, this truck is engineered to perform when it matters most. Purpose-built for adventure, the AT4X features a factory Off-Road Suspension, Hill Descent Control, Exhaust Brake, Engine Block Heater, High Idle Switch, 220-Amp Alternator, Heavy-Duty Battery, and 4WD, giving you the confidence to tackle challenging terrain and demanding workloads in every season. Inside, you'll discover a cabin that's every bit as refined as it is functional. Premium 16-way power front seats with lumbar support, driver memory, push-button start, remote vehicle start, and premium removable carpet floor liners create a luxurious environment designed for work and play alike. Five factory-installed Upfitter Switches make it easy to customize the truck for auxiliary lighting, air compressors, recovery equipment, or other accessories. Technology is front and center with GMC's Premium Infotainment System, SiriusXM with 360L, Bose Premium 12-Speaker Audio System, Universal Home Remote, and steering wheel-mounted audio controls, keeping you connected and entertained wherever your next adventure takes you. The bold exterior is as functional as it is aggressive, featuring a Power Sunroof, Power Sliding Rear Window, Spray-On Bedliner with GMC Logo, Rain-Sensing Wipers, Deep-Tinted Glass, Rear Wheelhouse Liners, and a Winter Grille Cover, all designed to enhance capability, durability, and style. Safety and confidence come standard with Lane Departure Warning, Hill Descent Control, Keyless Open and Start, OnStar, an Unauthorized Entry Theft-Deterrent System, and a full complement of advanced safety features to help protect you on and off the road. Vehicle Highlights 2026 GMC Sierra 2500HD AT4X 4WD Only 12,385 Miles Duramax 6.6L V8 Turbo-Diesel Allison 10-Speed Automatic Transmission Summit White Exterior Obsidian Rush Premium Leather Interior Factory Off-Road Suspension Power Sunroof 16-Way Power Heated Front Seats with Memory Premium GMC Infotainment System Bose Premium 12-Speaker Audio System Power Sliding Rear Window Spray-On GMC Bedliner Upfitter Switch Kit Exhaust Brake Engine Block Heater Lane Departure Warning Hill Descent Control Remote Vehicle Start Whether you're towing heavy loads, heading deep into the backcountry, or simply want one of the most capable and luxurious heavy-duty trucks on the road, this 2026 GMC Sierra 2500HD AT4X delivers on every level. Combining legendary Duramax power, premium craftsmanship, advanced technology, and true off-road capability, this truck is built to exceed expectations. Trucks this well-equipped and this clean don't stay available for long. Schedule your test drive today and experience the power, luxury, and capability of the 2026 GMC Sierra 2500HD AT4X for yourself. VIN: 1GT4UZEY7TF102664 Stock #: P102664