Discover the uncompromising capability and premium refinement of the 2026 GMC Sierra 2500HD AT4X. Engineered to conquer the toughest terrain, this rugged yet sophisticated truck delivers exceptional performance, advanced technology, and luxurious comfort.
- Onyx Black exterior with premium Black accents
- SNOW PLOW PREP/CAMPER PACKAGE includes increased front GAWR, skid plates, and provisions for roof emergency light
- GOOSENECK / 5TH WHEEL PREP PACKAGE with hitch platform and 7-pin trailer harness
The Sierra 2500HD AT4X comes equipped with a robust 6.6L V8 engine mated to a 10-speed automatic transmission, providing the power and control you need for any job or adventure. Elevate your driving experience with a suite of premium features:
- Bose 12-speaker premium audio system
- Heated and ventilated front seats with 16-way power adjustability
- Heated rear outboard seats
- Heads-up display and 15 diagonal multi-color display
- Wireless charging and Apple CarPlay/Android Auto integration
Designed to tackle the toughest terrain, the Sierra 2500HD AT4X boasts an off-road-tuned suspension, 2-speed transfer case, and Hill Descent Control. Enhance your capability further with the available Snow Plow Prep and Gooseneck/5th Wheel Prep packages.
Experience the unparalleled combination of power, technology, and refinement in the 2026 GMC Sierra 2500HD AT4X. Schedule a test drive today and discover the ultimate premium heavy-duty truck.
Prices may change at any time and are subject to availability and prior sale. Taxes, title, license fees, and a $180 documentation fee are not included. Pricing reflects all applicable rebates and incentives assigned to the dealer. Example payments are estimates; actual terms vary based on credit approval. APR and payment estimates apply to qualified buyers, not all buyers qualify for advertised rates. Factory cash incentives may not be combined with promotional APR. Fuel economy ratings and driving range figures are based on EPA estimates for new vehicles, and actual mileage and range may vary. Some in-stock vehicles may include a $1,295 Clear Guard Protection package By submitting your phone number online, you consent to occasional SMS or voice calls about our products and promotions; standard messaging rates may apply. Consult dealer for offer eligibility and other details. Factory MSRP is not the final advertised/asking price of the vehicle. Fuel economy figures are EPA estimates.




