This 2026 GMC Sierra 2500HD AT4 delivers commanding presence and serious capability in striking silver with a premium jet black and kalahari leather interior. Built on the legendary Duramax 6.6L V8 turbodiesel platform and paired with a smooth 10-speed automatic transmission, this crew cab standard bed is engineered for both highway composure and off-road confidence. With just over 26,000 miles, it remains virtually new while offering the peace of mind that comes with a lightly used, fully realized truck.

- Duramax 6.6L V8 turbodiesel with turbocharger and engine block heater
- 4WD with 2-speed active transfer case and hill descent control
- X31 off-road package with off-road suspension and exhaust brake
- Heated and ventilated leather front seats with 10-way power adjustment
- Premium Bose 7-speaker audio with SiriusXM 360L trial subscription
- Wireless charging and Apple CarPlay/Android Auto integration
- Ultrasonic front and rear park assist with HD surround vision
- Automatic emergency braking with forward collision alert
- Trailer side blind zone alert and hitch guidance with hitch view
- 20-inch high-gloss black aluminum wheels with spray-on bedliner

The AT4 trim combines the serious towing and payload capacity of a heavy-duty Sierra with refined comfort and technology features that make every drive more enjoyable. Whether you're managing a work site or managing life's adventures, this truck brings professional-grade capability wrapped in modern convenience and safety. Visit us to experience the power, comfort, and reliability that makes the Sierra 2500HD AT4 the right choice for discerning truck buyers.