2026 GMC Sierra 3500 Denali Ultimate

The Sierra 3500 is GMC's heavy-duty pickup, built to tow and haul with serious capability across its trim range. It competes head-to-head with the Ford F-350 Super Duty and Ram 3500 in the heavy-duty truck segment. The Sierra 3500 drives with the commanding presence you expect from a heavy-duty truck, and the diesel provides strong low-end grunt for towing. Cabin space is generous, with available luxury trims like Denali adding upscale materials and tech features. The Denali Ultimate sits at the top of the Sierra 3500 range, above the standard Denali and AT4, with exclusive styling and the most standard luxury equipment. Its 6.6L V8 makes 470 horsepower and 975 lb-ft of torque, paired with the ten-speed automatic and four-wheel drive, giving you effortless passing power even with a heavy trailer behind you. The standard MultiPro Tailgate with its six functions and built-in KICKER audio system is a Denali Ultimate exclusive you won't find on lesser trims.