Discover the ultimate in off-road capability with the 2026 GMC Sierra 2500HD AT4. This powerful and capable truck is equipped with a robust Duramax 6.6L V8 Turbodiesel engine, delivering an impressive 470 horsepower and an astounding 975 lb-ft of torque. Paired with a 10-speed automatic transmission and a 4WD drivetrain, the Sierra 2500HD AT4 is ready to tackle any terrain with confidence.

- **AUTOCHECK ONE OWNER**
- **CLEAN AUTOCHECK**
- ASSIST STEPS, POWER RETRACTABLE, BLACK with LED lighting
- Sterling Metallic exterior with Gray interior
- ENGINE BLOCK HEATER
- ALTERNATOR, 220 AMP
- AT4 PREMIUM PLUS PACKAGE
- LT275/65R20 E 126/123 BF GOODRICH OFF-ROAD T/A KO3 TIRES
- LPO, BODY COLOR WHEEL ARCH MOLDINGS
- LPO, HITCH PACKAGE
- HIGH IDLE SWITCH
- GOOSENECK / 5TH WHEEL PREP PACKAGE

This Sierra 2500HD AT4 is loaded with premium features that elevate your driving experience. Enjoy the convenience of a power sunroof, the advanced Technology Package, and the added capability of the high clearance step. With a Bose Premium 7-Speaker Sound System, Wireless Charging, and a 15 Diagonal Head-Up Display, you'll stay connected and entertained on every journey.

The AT4 Off-Road Package takes this truck to the next level, with features like Hill Descent Control, an Off-Road Suspension, and Skid Plates to conquer the toughest terrain. The Gooseneck/5th Wheel Prep Package and Hitch Package make this Sierra 2500HD AT4 the ultimate towing companion, ready to haul your largest loads with ease.

Experience the uncompromising power, capability, and premium features of the 2026 GMC Sierra 2500HD AT4. Visit our dealership today and let us put you behind the wheel of this exceptional truck.