The 2025 GMC Sierra 3500HD Crew Cab Standard Box Denali in Sterling Metallic with a refined Jet Black interior is the epitome of luxury and capability. Powered by the robust 6.6L Duramax Turbo-Diesel engine and paired with a 10-speed automatic transmission, it offers exceptional performance, making it a top choice for those who require both power and sophistication in their heavy-duty truck. The Denali Reserve Package elevates the Sierra 3500HD with premium features, including a power sunroof to bring in natural light and fresh air, a rear camera mirror to enhance visibility, and a heads-up display that keeps important driving information in your line of sight without distractions. The trailering package is designed for maximum towing ease, featuring a hitch view, trailer side blind zone alert, and a trailer brake controller, providing confidence when towing heavy loads. Additional safety features like rear cross-traffic alert, HD surround vision, automatic emergency braking, front and rear park assist, and front pedestrian braking ensure peace of mind on every journey. Inside, the 13.4-inch touch screen with navigation, Bluetooth, Wireless Apple CarPlay, and Android Auto allows seamless connectivity, keeping you connected and entertained while on the move. The power sliding rear window adds convenience and airflow to the cabin, while heated and ventilated seats, a heated steering wheel, and heated second-row seating ensure year-round comfort for all passengers. The adaptive cruise control adjusts your speed to maintain a safe distance from the vehicle ahead, and wireless device charging keeps your electronics powered up without the need for cords. Dual-zone automatic climate control provides individualized comfort for both the driver and front passenger. The 20-inch Aluminum wheels and Chrome assist steps enhance the Denali’s bold and premium appearance. The power folding/extending heated outside mirrors ensure optimal visibility, whether towing or parking, while the GMC Multipro Tailgate adds unmatched versatility, making loading and unloading the truck bed easier than ever. Stock Number: T4228613 *AMVIC Licensed Dealer