Experience the pinnacle of power and capability with the 2025 GMC Sierra 2500HD AT4. This exceptional heavy-duty truck is engineered to conquer any terrain, whether you're tackling tough job sites or embarking on thrilling off-road adventures.<br><br>Equipped with a robust Duramax 6.6L V8 Turbodiesel engine, the Sierra 2500HD AT4 delivers an impressive 470 horsepower and an astounding 975 lb-ft of torque, making it a true workhorse. Paired with a 10-speed automatic transmission and a 4-wheel drive system, this truck offers unparalleled performance and control, allowing you to tackle the most challenging conditions with ease.<br><br>- 6.6L V8 Diesel Turbocharged (Duramax) (B20-Diesel Compatible)<br>- ALTERNATOR, 220 AMP<br>- ENGINE BLOCK HEATER<br>- Preferred Equipment Group 4SB<br>- X31 Off-Road Package<br>- Bose Premium 7-Speaker Sound System<br><br>The Sierra 2500HD AT4 is designed to conquer the great outdoors, thanks to its advanced off-road capabilities. The X31 Off-Road Package equips this truck with a rugged suspension, all-terrain tires, and a 2-speed active transfer case, ensuring you can tackle any terrain with confidence. Additionally, features like Hill Descent Control and the Hitch Guidance with Hitch View make towing and maneuvering a breeze.<br><br>Step inside the cabin, and you'll be greeted by a premium, well-appointed interior that combines comfort and convenience. The perforated leather-appointed front seats are both heated and ventilated, providing a luxurious driving experience, while the Bose Premium 7-speaker sound system delivers exceptional audio quality. The advanced technology features, including wireless charging, Apple CarPlay/Android Auto, and the 360-degree camera system, keep you connected and informed on the go.<br><br>Safety is also a top priority in the Sierra 2500HD AT4. With features like Forward Collision Alert, Automatic Emergency Braking, and the Trailer Side Blind Zone Alert, you can drive with confidence, knowing that you an