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

Built to conquer the toughest tasks, this Sierra 3500HD features a robust Duramax 6.6L Turbo-Diesel V8 engine delivering an impressive 470 horsepower and a staggering 975 lb-ft of torque. Its 10-speed automatic transmission and four-wheel drive system, complete with a locking limited-slip differential, ensure superior traction and control on any terrain. The integrated tailgate step and power retractable running boards provide effortless access to the bed, which is protected by a durable liner, making loading and unloading heavy gear seamless.

Inside, the Denali Ultimate trim pampers you with leather seats that include heating, cooling, and massage functions, along with driver and passenger adjustable lumbar support and memory settings for personalised comfort. Advanced safety technologies such as blind spot monitoring, front collision mitigation, lane departure warning, and adaptive cruise control work together to keep you confident on the road.

The aerial view display system, heads-up display, and premium sound system enhance situational awareness and entertainment, while the diesel engine’s B20 compatibility offers a cleaner, more efficient fuel option. For professionals and enthusiasts alike, this truck is engineered to handle demanding workloads with sophistication and strength.