
Meet the 2026 GMC Sierra 2500HD AT4, a powerfully equipped diesel truck built for those who demand serious capability and refined comfort. With a Duramax 6.6L V8 Turbodiesel engine and 10-speed automatic transmission, this 4WD crew cab delivers exceptional towing power and efficiency. Striking black exterior paired with jet black and Kalahari leather interior creates a commanding presence backed by premium technology throughout.
- 360 Birdseye View Camera
- Adaptive Cruise Control
- Heated and Cooled Leather Seats
- Navigation System
- Head-Up Display
- Electric Power-Retractable Running Boards
- Spray-In Bedliner
- Premium Stereo with SiriusXM
- Front Collision Alert and Rear Cross Traffic Alert
- Remote Start and Keyless Entry
This AT4 comes with a clean Carfax history and is a one-owner local trade, showing just over 10,500 miles. The AT4 Premium Plus Package, trailer tire pressure monitoring, and comprehensive driver-assistance features round out a truck that's as smart as it is strong. Come see this remarkable Sierra 2500HD today and experience diesel power with luxury comfort.





