Adventure awaits behind the wheel of the 2025 GMC Sierra 3500HD AT4, available now in stunning Summit White with a bold Black interior featuring Kalahari accents. As Stock #T4340065 sits poised on our lot, it offers a compelling blend of sophistication and rugged capability. Powered by a formidable Duramax 6.6L Turbo-Diesel V8 engine, seamlessly paired with an Allison 10-speed automatic transmission, this powerhouse delivers an impressive 470 horsepower with 975 lb-ft of torque for commanding performance on and off the road. This Sierra 3500HD AT4 is designed for the driver who demands excellence in every detail, featuring the AT4 Premium Plus Package, which includes a power sunroof and the cutting-edge Technology Package for an immersive driving experience. Those seeking adventures will appreciate the equipped Gooseneck / 5th Wheel Prep Package, ensuring you’re ready to haul with ease. Whether navigating through city streets or cruising the countryside, the embedded navigation system ensures you are on the right path. The AT4’s 4×4 capability guarantees that no road is off limits, while the bed liner protects your truck during even the most ambitious of payloads. A suite of smart safety features, including front collision warning, rear parking aid, and lane departure warning, stand sentinel to offer peace of mind during every journey. The LED headlights and automatic high beams illuminate the path ahead, further enhanced by the running boards for effortless cabin entry, and rain-sensing wipers providing clear vision during unpredictable weather. Inside, passengers are treated to heated front seats, a heated steering wheel, and even a wifi hotspot – redefining cabin comfort and connectivity. This Sierra 3500HD AT4 doesn’t just meet expectations; it surpasses them, bringing together luxury and utility with its powerful diesel engine and premium interior amenities. Experience the unwavering strength and sophisticated style of this exceptional truck, ready to take on any challenge that lies ahead. Stock #T4339340