Experience unmatched capability and luxury with the 2026 GMC Sierra 3500HD Denali Ultimate, designed for those who demand power, precision, and premium comfort in every drive.

Built to conquer the toughest tasks, the Sierra 3500HD Denali Ultimate boasts a robust Duramax 6.6L Turbo-Diesel V8 engine delivering an impressive 470 horsepower and a staggering 975 lb-ft of torque. This powertrain, paired with a smooth 10-speed automatic transmission and advanced 4x4 drivetrain, ensures exceptional towing and hauling performance, ideal for heavy-duty work or recreational adventures. The truck’s integrated tailgate step and power retractable running boards provide effortless access to the bed, which is protected by a durable liner and ready for all your gear. Inside, the crew cab offers heated and cooled leather seats with massage functions and adjustable lumbar support, creating a refined environment tailored to your comfort. Advanced safety features such as blind spot monitoring, lane departure warning, and front collision mitigation keep you confident on every journey. The heads-up display and aerial view camera system enhance situational awareness, while the premium sound system and WiFi hotspot keep you connected and entertained. Finished in striking Polar White Tricoat with aluminum wheels and all-terrain tires, this Sierra 3500HD Denali Ultimate is engineered to perform and impress in every setting.