2026 GMC Sierra 3500HD Denali Ultimate

Experience commanding power and advanced technology with the 2026 GMC Sierra 3500HD Denali Ultimate, designed for heavy-duty performance and refined comfort in every drive.

This new 4x4 crew cab pickup features a robust Duramax 6.6L turbo-diesel V8 engine delivering 470 horsepower and an impressive 975 lb-ft of torque, paired with a smooth 10-speed automatic transmission. Built for serious towing, it includes a Gooseneck/5th wheel prep package with a hitch platform and bed-mounted 7-pin trailer harness, ensuring readiness for your toughest hauls. The bed liner and integrated tailgate step enhance durability and accessibility, while power retractable running boards provide convenience on every entry and exit.

Inside, the Denali Ultimate offers luxurious leather bucket seats with heating, cooling, and massage functions, plus power-adjustable driver and passenger seats with lumbar support and memory settings. The multi-zone climate control and heated steering wheel add comfort tailored to your preferences. Safety is paramount with features like adaptive cruise control, blind spot monitoring, lane departure warning, front collision mitigation, and an aerial view display system for enhanced situational awareness.

Aluminum wheels with all-terrain tires, tow hooks, and locking limited-slip differential ensure capability on any terrain. With premium sound, keyless start, and a heads-up display, this Sierra 3500HD blends rugged utility with sophisticated technology for the discerning driver.