13.4 Diagonal GMC Premium Infotainment | Duramax® 6.6L V8 Turbo-Diesel | Denali Reserve Package | 15 Diagonal Head-Up Display | Bose® Premium Sound System | HD Surround Vision | Power Sunroof | Gooseneck/5th Wheel Prep Package The 2026 GMC Sierra 3500 HD 4WD Denali, finished in Summit White with a Jet Black forged leather interior, is the ultimate expression of heavy-duty capability and luxury. Driven by the legendary Duramax® 6.6L V8 Turbo-Diesel engine and a 10-speed automatic transmission, this truck is built to tackle the most demanding tasks with professional-grade precision. Its commanding exterior is highlighted by 20 ultra-bright machined aluminum wheels, chrome assist steps, and the versatile GMC MultiPro tailgate. Engineered for maximum towing confidence, it features Digital Variable Steering, an integrated trailer brake controller, and the Gooseneck/5th Wheel Prep Package. The interior is a high-tech sanctuary, significantly enhanced by the Denali Reserve Package. This premium upgrade adds a multi-colour 15 diagonal Head-Up Display, a Rear Camera Mirror, and a power sunroof. The driver is centered around a 13.4 diagonal touchscreen with Google built-in and a 12.3 digital information centre. Comfort is unparalleled with 12-way power-adjustable heated and ventilated front seats, heated second-row outboard seats, and a heated wrapped steering wheel. The cabin experience is rounded out by a Bose® premium speaker system, wireless charging, and dual-zone automatic climate control. Safety and utility are masterfully integrated, featuring Sierra HD Pro Safety, HD Surround Vision, and a dedicated Bed View camera. This Denali is equipped for any job site with a factory spray-on bed liner, LED cargo bed lighting, and a high idle switch for increased power takeoff efficiency. Additional refinements include rain-sensing wipers, animated LED projector headlamps, and dealer-installed all-weather floor liners and moulded splash guards. With the In-Vehicle Trailering App and Hitch View providing seamless towing assistance, the 2026 Sierra 3500 Denali remains the benchmark for premium heavy-duty trucks. Stock #T4220779 AMVIC LICENSED DEALER