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Come see why driving a GMC isn't just transportation—it's an upgrade to everything you expect on the road.
- Duramax 6.6L V8 Turbodiesel engine with 470 hp and 975 lb-ft of torque
- 10-Speed Automatic transmission with 4WD
- Gooseneck/5th Wheel Prep Package with hitch platform
- Hitch Package with gooseneck ball and chain tiedown kit
- Bose Premium Series 12-Speaker System with SiriusXM
- Multicolor 15" Diagonal Head-Up Display
- HD Surround Vision with Bed View Camera a
d Trailer Camera Provisions
- Off-Road Suspension with 2-Speed Active Transfer Case
- Lane Departure Warning, Automatic Emergency Braking, and Rear Cross Traffic Alert
- Full Grain Leather Seat Trim with 16-Way Power Driver and Passenger Seat Adjusters
- Heated and Ventilated front seats with heated rear seats
- Apple CarPlay and Android Auto compatibility
- Wireless Charging and Wireless Phone Projection
- Spray-on Pickup Bedliner with GMC Logo
- 3 Years OnStar One and 3 Years SiriusXM included
This 2026 GMC Sierra 2500HD AT4X arrives in striking white and represents the pinnacle of heavy-duty truck capability. The legendary Duramax diesel engine delivers the power and torque you need for serious work or towing, backed by a responsive 10-Speed Automatic transmission and confident 4WD performance. Whether you're navigating challenging terrain or cruising the highway, this truck responds to your demands with precision and reliability.
The AT4X trim elevates your experience with thoughtfully engineered features designed for both capability and comfort. The off-road suspension system, combined with hill descent control and the 2-Speed Active Transfer Case, gives you mastery over varied driving conditions. Advanced technology like HD Surround Vision, trailer camera provisions, and in-vehicle trailering system integration make towing intuitive and safe. The hitch guidance feature with hitch view takes the guesswork out of backing up your trailer.
Your cab is a sanctuary of refinement and functionality. Full grain leather seating, heated and ventilated front seats, and 16-way power adjusters with lumbar support ensure you arrive refreshed. The multicolor head-up display keeps critical information within your line of sight. The Bose premium audio system transforms every drive into an entertainment experience, seamlessly integrated with Apple CarPlay and Android Auto for your connectivity needs.
Practical features make daily ownership rewarding. The spray-on bedliner protects your investment, while the 120-volt bed-mounted power outlet keeps your tools charged. Premium floor liners, automatic rain-sensing wipers, and a power moonroof add layers of convenience. Safety technology including lane departure warning, automatic emergency braking, and rear cross traffic alert works silently in the background to protect what matters most.
The gooseneck/5th wheel prep package positions this Sierra to handle your heaviest trailers with confidence. Combined with the comprehensive hitch package and trailer tire pressure monitoring, you have everything needed for serious hauling operations. The 220-amp alternator and heavy-duty 80-amp battery ensure your truck powers everything you connect to it.
At the end of the day, the right vehicle doesn't just get you where you're going—it changes how you feel getting there. That's exactly what GMC delivers. Smooth, stylish, and packed with features you'll appreciate every single drive.
Don't just take our word for it—come experience it for yourself. Stop by today, take a seat behind the wheel, and see why so many drivers are making the switch to GMC. Your next upgrade is waiting.
Miles
2Ext. Color
WhiteInt. Color
Obsidian RushEngine
Duramax 6.6L V8 TurbodieselTransmission
AutomaticTrim
AT4XDrivetrain
4WDCity MPG
0Highway MPG
0VIN
1GT4UZEY9TF339964Stock #
TF339964