Experience commanding power and refined capability with the 2026 GMC Sierra 3500HD Denali Ultimate, designed for those who demand exceptional performance and luxury in every drive.

Built to tackle the toughest jobs, the Sierra 3500HD Denali Ultimate features a robust Duramax 6.6L Turbo-Diesel V8 engine delivering an impressive 470 horsepower and a staggering 975 lb-ft of torque. This powerhouse is paired with a 10-speed automatic transmission and a 4x4 drivetrain, ensuring optimal control and traction across all terrains. The locking limited-slip differential enhances stability, making heavy towing and hauling effortless.

Inside, the crew cab offers premium leather seating with heated, cooled, and massaging front seats, plus adjustable lumbar support and seat memory for personalized comfort during long hauls or daily drives. The advanced Aerial View Display system and Heads-Up Display provide critical driving information with ease, while adaptive cruise control and blind spot monitoring elevate safety on busy highways and rugged backroads.

The exterior is as functional as it is striking, with Onyx Black paint, power retractable running boards, integrated tailgate step, and all-terrain tires ready for any challenge. With a bed liner and tow hitch included, this Sierra is prepared to handle your toughest loads while keeping you connected and comfortable throughout the journey.