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The 2026 GMC Sierra 2500HD AT4X delivers commanding presence and capability in an Onyx Black finish. Powered by a 6.6L Duramax V8 turbodiesel engine with a 10-speed automatic transmission and 4WD, this truck is engineered for serious work and adventure. The AT4X trim c
mbines rugged off-road capability with refined comfort, making it equally at home on demanding terrain or daily drives.
Key features include:
- Gooseneck/5th wheel prep package with hitch platform
- Hitch package with trailer side blind zone alert and trailer tire pressure monitoring
- 220-amp alternator and engine block heater for year-round reliability
- Hill descent control and 2-speed active transfer case for off-road confidence
- Premium GMC Infotainment System with Apple CarPlay and Android Auto
- Bose premium 12-speaker audio system with SiriusXM
- 15-inch multicolor head-up display and HD surround vision camera system
- Heated and ventilated leather front seats with 16-way power adjustment
- Automatic emergency braking and forward collision alert
This truck is outfitted with premium amenities including a power moonroof, wireless phone projection, wireless charging, and comprehensive LED lighting. Safety systems include lane departure warning, rear cross traffic alert, and ultrasonic park assist. The spray-on bedliner with GMC logo and gloss black accents enhance both durability and style.
Experience the capability and comfort this Sierra 2500HD AT4X offers. Visit us today to take command of the road.
**WARRANTY FOREVER**--Warranty Forever is provided at no cost on all new vehicles, and every pre-owned vehicle under 75K miles, for as long as you own the vehicle. *Maintenance records must be maintained along with all regular scheduled maintenance.
Miles
18Ext. Color
BlackInt. Color
Obsidian RushEngine
Duramax 6.6L V8 TurbodieselTransmission
AutomaticTrim
AT4XDrivetrain
4WDCity MPG
0Highway MPG
0VIN
1GT4UZEY1TF227028Stock #
WC0912