Meet the 2026 GMC Sierra 2500HD AT4, a meticulously prepared heavy-duty truck ready for work, adventure, or daily capability.
- Apple CarPlay and Android Auto integration
- Duramax 6.6L V8 Turbodiesel engine with 10-speed automatic transmission
- 4WD with 2-speed active transfer case and off-road suspension
- Bose Premium 7-Speaker Sound System with SiriusXM 360L trial subscription
- Multicolor 15 head-up display and wireless phone projection
- HD Surround Vision with bed view camera and trailer camera provisions
- Heated and ventilated leather front seats with heated rear outboard seats
- Power sunroof with deep-tinted glass
- Spray-on pickup bedliner with GMC logo
- 20 high-gloss black aluminum wheels
- Wireless charging with multiple USB ports throughout
- Ultrasonic park assist and trailer side blind zone alert
- AT4 Premium Plus Package and X31 off-road package included
This Sierra has been serviced, inspected, and fully detailed to ensure it arrives in pristine condition. Every system has been checked and the truck is ready for immediate use with confidence.
The truck features the legendary Duramax 6.6L V8 Turbodiesel paired with a smooth 10-speed automatic transmission, delivering the power and capability you expect from a GMC heavy-duty truck. The 4WD system includes a 2-speed active transfer case and off-road suspension, giving you control whether you're on pavement or navigating challenging terrain.
Technology enhances both capability and comfort throughout the cabin. The Multicolor 15 head-up display keeps critical information visible, while the premium GMC infotainment system with Apple CarPlay and Android Auto keeps you connected. The HD surround vision with bed view camera and trailer camera provisions makes towing and maneuvering straightforward, and the in-vehicle trailering system app provides real-time assistance.
Comfort is addressed with heated and ventilated leather front seats featuring 10-way power adjustment with lumbar support. The heated rear outboard seats make cold-weather travel pleasant for passengers, and the power sunroof adds openness to the cabin. Storage is thoughtfully integrated with wireless charging, multiple USB charging ports, and a 120-volt bed-mounted power outlet for job-site tools.
Gooseneck and fifth-wheel prep is included, making this truck ready for serious towing applications. The spray-on bedliner with GMC logo protects your investment, while the 20 high-gloss black aluminum wheels complement the black exterior and AT4 styling.
This 2026 Sierra 2500HD AT4 represents the complete package: proven capability, modern technology, premium comfort, and truck-ready features in one well-maintained vehicle.




