This 2026 GMC Sierra 2500HD AT4 delivers commanding capability with the legendary Duramax 6.6L V8 Turbodiesel engine and 10-speed automatic transmission, ready to handle serious work and adventure. The 4D Crew Cab design combines rugged functionality with refined appointments, featuring a Jet Black interior trimmed in perforated leather. With just over 26,700 miles, this truck remains virtually new and fully capable of years of dependable service.
- Duramax 6.6L V8 Turbodiesel engine with 10-speed automatic transmission
- 4WD with 2-speed active transfer case and off-road suspension
- X31 Off-Road Package with hill descent control
- Bose premium 7-speaker sound system with SiriusXM 360L trial subscription
- Heated and ventilated leather front seats with 10-way power adjustment
- Bed view camera with two trailer camera provisions and trailer side blind zone alert
- Spray-on bedliner with GMC logo, LED cargo lighting, and rear wheelhouse liners
- HD surround vision with ultrasonic front and rear park assist
- Wireless charging and wireless phone projection
- Heated 2nd row outboard seats with premium floor liners
The AT4 trim elevates the Sierra experience with premium features designed for comfort on and off the road. Advanced safety technology includes automatic emergency braking, forward collision alert, and lane departure warning, while multiple camera provisions and trailer viewing software make towing intuitive and secure. The truck's off-road credentials shine through the active transfer case and specialized suspension, giving you confidence whether you're tackling rough terrain or managing daily demands.
Visit us today to experience the power, capability, and refinement of this impressive Sierra 2500HD AT4.
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