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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
- 3 Years OnStar One and 3 Years SiriusXM included
- 16-Way Power Driver and Passenge
Seats with lumbar support
- Full Grain Leather Seat Trim with heated and ventilated front seats
- Multicolor 15" Diagonal Head-Up Display
- HD Surround Vision with Bed View Camera and trailer camera provisions
- Power Moonroof with power sliding rear window
- Wireless Charging and Wireless Phone Projection
- 18" Machined Aluminum Wheels with High Gloss Black Accents
- Engine Block Heater and 220-Amp Alternator
- Spray-on Pickup Bedliner with GMC Logo
This 2026 Sierra 2500HD AT4X arrives finished in Silver with a robust Duramax diesel engine built for serious work and capability. The turbocharged powerplant delivers impressive torque for towing and hauling, while the 10-speed automatic manages power delivery smoothly across all driving conditions. The 4WD system with 2-Speed Active Transfer Case and Hill Descent Control keeps you confident whether you're navigating job sites or challenging terrain.
The AT4X trim reflects GMC's commitment to premium capability. Inside, you'll find full grain leather seating, a 16-way power driver seat with lumbar support, and heated and ventilated front seats designed for all-day comfort. The Bose Premium audio system and SiriusXM satellite radio keep you connected, while wireless phone projection and Apple CarPlay/Android Auto integration ensure seamless compatibility with your devices.
Technology and safety work together here. The Multicolor 15" Head-Up Display keeps critical information visible without taking your eyes off the road. HD Surround Vision provides comprehensive camera coverage, including a bed view camera and trailer camera provisions for confident maneuvering. Automatic Emergency Braking, Forward Collision Alert, and Rear Cross Traffic Alert add layers of protection.
For those who tow, this truck speaks your language. The Gooseneck/5th Wheel Prep Package with dedicated hitch platform eliminates guesswork, while the in-vehicle trailering system app and trailer tire pressure monitoring keep operations efficient. The Hitch Package includes a complete gooseneck ball and chain tiedown kit, ready for immediate use.
The work side matches the capability. A spray-on bedliner protects against the wear of daily use, while the 120-volt bed-mounted and instrument panel power outlets let you power tools and equipment. The engine block heater ensures reliable cold-weather starts, and the 220-amp alternator provides substantial electrical capacity for any accessories you might add.
OnStar One connectivity for three years keeps you protected and informed. The truck includes three years of SiriusXM satellite radio service, delivering entertainment and information wherever your route takes you. A power moonroof and deep-tinted glass add refinement without compromising the work-ready identity this truck maintains.
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
4Ext. Color
SilverInt. Color
Obsidian RushEngine
Duramax 6.6L V8 TurbodieselTransmission
AutomaticTrim
AT4XDrivetrain
4WDCity MPG
0Highway MPG
0VIN
1GT4UZEY1TF347539Stock #
TF347539