Discover the ultimate heavy-duty pickup with the 2025 GMC Sierra 2500HD AT4. Engineered to conquer any terrain, this rugged and capable truck is the perfect companion for your next adventure.- [custom_features]- [cads_features]- [package_features]- [starred_features]Beneath the bold, athletic exterior lies a powerhouse Duramax 6.6L V8 Turbodiesel engine, delivering an impressive 470 horsepower and 975 lb-ft of torque. Paired with a smooth-shifting 10-speed automatic transmission and an advanced 4WD system, the Sierra 2500HD AT4 is ready to tackle the toughest jobs and most challenging off-road conditions.The AT4 Premium Plus Package elevates your driving experience with a wealth of premium features, including a power sunroof, the Technology Package, and the high-clearance step for easy access. The available Gooseneck/5th Wheel Prep Package further enhances the Sierra's versatility, making it the ultimate towing companion.Step inside the spacious and well-appointed cabin, where you'll be surrounded by thoughtful amenities and cutting-edge technology. The Bose Premium 7-Speaker Sound System, wireless charging, and the intuitive GMC Infotainment System with Apple CarPlay and Android Auto integration ensure you stay connected and entertained on the go.Safety is also a top priority, with features like Automatic Emergency Braking, Forward Collision Alert, and the Bed View Camera with Trailer Camera Provisions keeping you and your cargo secure.Experience the unparalleled capability, comfort, and technology of the 2025 GMC Sierra 2500HD AT4. Visit our dealership today to take this remarkable truck for a test drive and discover the power of true off-road dominance.