Meet the 2025 GMC Sierra 3500HD Denali, a premium heavy-duty truck engineered for serious work and refined capability. This one-owner Onyx Black powerhouse features the legendary 6.6L V8 Duramax turbodiesel engine paired with a 10-speed automatic transmission and 4WD, delivering the performance and reliability you demand. With just over 5,400 miles, this Sierra 3500HD Denali Reserve combines luxury appointments with genuine utility. Key Features: - Denali Reserve Package with premium styling and appointments - Gooseneck/5th Wheel Prep Package for maximum towing versatility - Duramax 6.6L V8 Turbodiesel with 220-Amp Alternator and Engine Block Heater - Bose Premium 7-Speaker Sound System with SiriusXM 360L Trial - Available Spray-On Pickup Bedliner with GMC Logo - HD Surround Vision with Bed View Camera and Trailer Camera Provisions - Heated and Ventilated Leather Front Seats with 12-Way Power Adjustment - Wireless Charging and Wireless Phone Projection - Power Sunroof and Deep-Tinted Glass - Advanced Safety: Ultrasonic Park Assist, Trailer Side Blind Zone Alert, Safety Alert Seat This Sierra 3500HD is loaded with technology and comfort features designed for the discerning truck buyer. The Denali Reserve Package elevates the interior with premium materials and finishes, while the gooseneck prep package and hitch package set you up for any hauling task. Driver and front passenger seats offer heating and ventilation, and the available power sunroof adds an open-air element to your driving experience. Modern conveniences include wireless charging, smartphone projection, and an available 15-inch head-up display. Experience the difference a properly equipped Sierra 3500HD Denali can make. Contact us today to schedule your personal tour and test drive. At Reineke Family of Dealerships, we pride ourselves on delivering a convenient and transparent buying experience. Get your key from Reineke! Please be aware that all listed vehicles are subject to additional applicable sales tax, titling, license, and registration fees, including a registration convenience fee of $50 where applicable and a documentary fee of up to $398. We attempt to update this inventory on a regular basis. However, there can be a delay between the sale of a vehicle and the update of the inventory. Vehicle mileage listed may vary due to vehicle demonstrations. All pre-owned vehicles are represented and sold AS-IS with no dealer warranty, although manufacturer warranty may remain and vehicle may be eligible for an optional vehicle service con