This 2026 GMC Sierra 2500HD Denali Ultimate is proudly offered by Legacy Buick GMC This GMC includes: LPO, HARD FOLDING TRUCK BED COVER BY REALTRUCK ADVANTAGE Pickup Bed Tonneau Cover LPO, 22 Aluminum Wheels TRANSMISSION, 10-SPEED AUTOMATIC (STD) A/T 10-Speed A/T GVWR, 11,350 LBS GLACIER WHITE TRICOAT LPO, BODY COLOR WHEEL ARCH MOLDINGS GOOSENECK / 5TH WHEEL PREP PACKAGE ENGINE, DURAMAX 6.6L TURBO-DIESEL V8, B20-DIESEL COMPATIBLE Diesel Fuel 8 Cylinder Engine Turbocharged ALTERNATORS, DUAL, 220-AMPS PRIMARY, 170-AMPS AUXILIARY *Note - For third party subscriptions or services, please contact the dealer for more information.* There's a level of quality and refinement in this GMC Sierra 2500HD Denali Ultimate that you won't find in your average vehicle. Taking the road less traveled has never been more fun than with this 4WD. With improved performance, mileage and acceleration, this 2026 4WD GMC Sierra 2500HD Denali Ultimate is king of the off-road. The GMC Sierra 2500HD Denali Ultimate will provide you with everything you have always wanted in a car -- Quality, Reliability, and Character. Dealer Disclosure: Prices do not include state and local tax, title, license, notarial fees, convenience fees, documentary fees, and any finance charges. All prices, specifications and availability subject to change without notice. Contact dealer for most current information .Not available with special finance, lease and some other offers.