Disclaimer:
The Manufacturer’s Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.
1Dealer Discount applied to everyone
Price includes: $1000 - Purchase Allowance. Exp. 06/30/2026 Experience the uncompromising capability of the 2026 GMC Sierra 2500HD AT4. This rugged, off-road-ready pickup is engineered to conquer any terrain with its powerful Duramax 6.6L V8 Turbodiesel engine, delivering an impressive 470 horsepower and 975 lb-ft of torque.
- 6.6L V8 Diesel Turbocharged (Duramax) (B20-Diesel Compatible) (Includes (K05) Engine Block Heater) (470 hp [350.5 kW] @ 2800 rpm, 975 lb-ft of torque [1322 Nm] @ 1600 rpm)
- AT4 Preferred Package
- AT4 Premium Plus Package
- Gooseneck/5th Wheel Prep Package
- Hitch Package
- Preferred Equipment Group 4SB
- Technology Package
- X31 Off-Road Package
- Bose Premium 7-Speaker Sound System
- SiriusXM with 360L Trial Subscription
- Steering Wheel Audio Controls
- Electric Rear-Window Defogger
- 120-Volt Bed Mounted Power Outlet
- 120-Volt Instrument Panel Power Outlet
- Push Button Start
- Remote Vehicle Starter System
- Universal Home Remote
This Sierra 2500HD AT4 is equipped with an unmatched array of premium features and advanced technologies to elevate your driving experience. Enjoy the convenience of wireless charging, the clarity of the Multicolor 15 Diagonal Head-Up Display, and the peace of mind provided by the Rear Cross Traffic Alert and Trailer Side Blind Zone Alert systems.
The rugged, off-road-focused design of the AT4 package includes an off-road suspension, 2-speed active transfer case, and gloss black exterior accents for a bold, confident appearance. The integrated trailer camera provisions and Bed View Camera allow you to easily monitor your towing setup, while the spray-on bedliner and rear wheelhouse liners protect your investment.
Step inside and discover the ultimate in comfort and connectivity. Heated and ventilated front seats, a heated steering wheel, and a premium Bose audio system create a luxurious driving environment. The wireless phone projection and OnStar services provide seamless integration with your digital lifestyle.
Whether you're tackling tough jobsites, navigating challenging terrain, or enjoying a weekend adventure, the 2026 GMC Sierra 2500HD AT4 is the ultimate companion. Experience the unmatched capability and premium features that make this truck a true force to be reckoned with.