Summit White 2025 GMC Sierra 3500HD Denali Ultimate 4WD the pinnacle of heavy-duty luxury, Duramax power, and professional-grade capability. Built for buyers who demand maximum towing strength without sacrificing premium comfort, this flagship Sierra combines serious truck performance with executive-level refinement.
Powered by the legendary Duramax 6.6L V8 Turbo-Diesel paired with a 10-speed automatic transmission, this Sierra 3500HD delivers massive torque, confident towing authority, and the durability heavy-duty truck owners depend on. Whether hauling equipment, towing a fifth-wheel, or handling demanding workloads, this truck is engineered to perform at the highest level.
Finished in Summit White, this Denali Ultimate commands attention with the exclusive Vader Chrome Signature Denali Ultimate grille, LED smoked amber roof marker lamps, bold stance, and unmistakable GMC presence. Itâs a truck that looks just as impressive arriving at a jobsite as it does pulling up to dinner downtown.
Inside, the Denali Ultimate cabin surrounds you with first-class comfort and advanced technology. Heated and ventilated front seats, heated second-row outboard seating, a power sunroof, Bose Premium Series 12-speaker audio system, wireless charging, and wireless phone projection create a luxury environment few heavy-duty trucks can match.
Trailering technology is second to none with the ProGrade Trailering System, gooseneck/5th wheel prep package, bed view camera with trailer camera provisions, HD Surround Vision, trailer side blind zone alert, trailer tire pressure monitor sensors, and ultrasonic front and rear park assist. This truck is built to make towing safer, easier, and more controlled.
The Technology Package adds even more confidence with Safety Alert Seat, rear cross traffic alert, rain-sensing wipers, and advanced driver assistance features designed for long-distance comfort and daily convenience.
Capability continues with the X31 Off-Road Package, spray-on bedliner, LED cargo lighting, rear wheelhouse liners, 120-volt bed and cabin power outlets, 2-speed active transfer case, and remote vehicle start.
When only the best will do, the Sierra 3500HD Denali Ultimate stands at the top.
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