2026 GMC Sierra 2500HD AT4

The 2026 GMC Sierra 2500HD AT4 is the epitome of rugged capability and refined style. Outfitted with a powerful Duramax 6.6L V8 Turbodiesel engine paired with a 10-speed automatic transmission, this truck delivers exceptional performance and efficiency, whether tackling tough terrain or hauling heavy loads.- Heavy Duty Front Spring/Camper Package- Titanium Rush Metallic exterior with Gray interior- Engine Block Heater- 220 AMP Alternator- AT4 Premium Plus Package with power sunroof, Technology Package, and high clearance step- Gooseneck/5th Wheel Prep Package for versatile towingThe Sierra 2500HD AT4 is packed with premium features that elevate your driving experience, .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