Command the road and worksite with the 2026 GMC Sierra 3500HD Denali in Onyx Black — a powerful, diesel-driven 4x4 crew cab with advanced towing and safety technology.

Built for those who demand uncompromising strength and capability, the Sierra 3500HD Denali features a turbocharged 8-cylinder diesel engine paired with a smooth 10-speed automatic transmission and dual rear wheels for exceptional stability and payload capacity. Whether hauling heavy equipment or navigating rugged terrain, the locking limited-slip differential and all-terrain tires ensure confident traction in all conditions.

Inside, the luxurious leather cabin offers heated and cooled front seats with adjustable lumbar support and memory settings, providing comfort during long hauls. The multi-zone climate control and heated rear seats keep all passengers comfortable regardless of weather.

Safety is paramount with a suite of driver-assist technologies including adaptive cruise control, blind spot monitoring, lane departure warning, front collision mitigation, and an aerial view display system for precise manoeuvring. Power retractable running boards and an integrated tailgate step make access effortless, while the bed liner protects your cargo area from wear.

With premium sound, navigation, WiFi hotspot, and smart device integration, the Sierra 3500HD Denali blends rugged utility with refined technology, perfect for professionals who require a dependable, capable truck that works as hard as they do.