This 2026 GMC Sierra 2500HD AT4 is a well-equipped heavy-duty pickup designed to deliver comfort, capability, and everyday drivability. With a bold, rugged design and purposeful engineering, it offers the performance and refinement drivers expect from GMC.Equipped with the AT4 Premium Plus package, this vehicle adds desirable technology and convenience features that enhance confidence behind the wheel, whether you're commuting, towing, or heading out on the open road.STAR FEATURES INCLUDE:- Inside Rearview Auto-Dimming Rear Camera Mirror- Multicolor 15" Diagonal Head-Up DisplayADDITIONAL FEATURES:- AT4 PREMIUM PLUS- Duramax 6.6L V8 Turbodiesel- 10-Speed Automatic- 4WD- Gooseneck/5th Wheel Prep Package- Hitch Package- Technology PackageIf you've been looking for a quality heavy-duty truck that blends modern technology with dependable performance, this GMC Sierra 2500HD AT4 is worth a closer look.Toliver Chevrolet GMC of McAlester, OK is Southeastern Oklahoma's destination for new Chevrolet and GMC trucks, proudly serving McAlester, Ada, Eufaula, Muskogee, Durant, Fort Smith AR, Paris TX, and the surrounding region. We specialize in Chevrolet Silverado and GMC Sierra trucks built to compete head-to-head with Ford F-150 and Ford Super Duty models for power, towing capability, and long-term durability.Truck buyers comparing Silverado or Sierra vs Ford often choose Chevy and GMC for proven V8 power, advanced trailering technology, and professional-grade design built for real-world work and everyday driving. From half-ton pickups to heavy-duty HD models, Chevy and GMC deliver the strength and confidence serious truck owners expect.Every new Chevrolet and GMC truck includes The Toliver Promise — a 5-Year / 1-Million-Mile Limited Powertrain Warranty at no additional cost (see dealer for details). Family-owned and known for transparent pricing and an easy buying experience. Price includes: $500 - Purchase Allowance. Exp. 03/02/2026
