Sierra 3500

Spider

AWD4WD

8-Cylinder Turbo

Diesel

Some trucks are built to get through the day, and some look like they're ready to move a mountain before lunch. The 2026 GMC Sierra 3500HD AT4 definitely leans toward the second option. Finished in bold Onyx Black, this heavy-duty truck delivers a commanding presence backed by serious capability. Under the hood, the legendary Duramax 6.6L V8 Turbodiesel provides massive torque and dependable performance for towing, hauling, and tough jobs. The AT4 trim adds rugged off-road confidence while still maintaining a smooth and controlled ride on the highway. Its built for drivers who expect their truck to handle real work without hesitation. Inside, the Sierra 3500HD AT4 offers a refined cabin featuring Jet Black leather with Kalahari accents for a bold and upscale feel. The interior blends durability with comfort, making it just as suitable for long drives as it is for demanding workdays. Every detail is designed to keep both driver and passengers comfortable no matter where the road leads. This truck also includes the 2-Year/24k Young Auto Group Maintenance Plan for added peace of mind. That means two years of free oil changes, free tire rotations, and free safety inspections to help keep your Sierra running strong. Tax, title, and license fees extra. *Disclaimer: Contact dealer for details. Prices do not include additional fees and costs of closing, including government fees, taxes, any finance charges, any dealer documentation fees or any dealer installed accessories. All prices, specifications and availability subject to change without notice. Special internet prices cannot be combined with any other promotion. *Offers and incentives shown may not be available to all customers. Incentives lists are examples of offers available at the time of posting and are subject to change and expiration. Not all incentives can be redeemed together. To take advantage of rebates, incentives and/or financing offers you must take new retail delivery from dealer stock by the expiration date noted. Not all buyers will qualify for all incentives, GM financing or other offers. Restrictions apply. See us for complete details for more information.$500 - Bonus Cash. Exp. 03/31/2026 $500 - Purchase Allowance. Exp. 03/31/2026 Must trade in 2016 or newer with 80,000 miles or less.. Branded/salvage title will not qualify.

New 2026 GMC Sierra 3500 AT4 AWD/4WD

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