2026 GMC Sierra 2500

This 2026 GMC Sierra 2500HD AT4X is a well-equipped heavy-duty pickup designed to deliver comfort, capability, and everyday drivability. With a purposeful design and engineered performance, it offers the strength and refinement drivers expect from GMC. Equipped with the Preferred Equipment Group 4SG and Gooseneck/5th Wheel Prep 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.- Duramax 6.6L V8 Turbodiesel engine with 470 hp and 975 lb-ft of torque- 10-Speed Automatic transmission with 4WD capability- Gooseneck/5th Wheel Prep Package with hitch platform and bed-mounted trailer harness- Hitch Package with gooseneck ball and chain tiedown kit- Multicolor 15'' Head-Up Display- Premium GMC Infotainment System with Apple CarPlay and Android Auto- Bose Premium Series 12-Speaker System with SiriusXM 360L- Heated and ventilated full grain leather front seats with 16-way power adjustment- Advanced safety features including Automatic Emergency Braking and HD Surround Vision- Bed View Camera with two trailer camera provisions and Trailer Viewing Software- 18'' Machined Aluminum wheels with High Gloss Black Accents- Spray-on Pickup Bedliner with GMC Logo- Power moonroof and power sliding rear window with defoggerThis Sierra 2500HD combines serious towing capability with refined comfort features. The Duramax diesel engine delivers the torque needed for professional-grade work, while advanced trailering technology including Hitch Guidance, Trailer Side Blind Zone Alert, and integrated camera systems makes towing safer and more convenient. The gooseneck preparation enables fifth-wheel or gooseneck hitch installation, providing versatility for heavy trailer work.Inside, the AT4X trim emphasizes luxury and functionality. Full grain leather seating with heated and ventilated options keeps you comfortable in any season. The 16-way power-adjustable driver seat with lumbar support accommodates long drives, while the heated steering wheel and premium Bose audio system enhance the driving experience. Multiple USB ports and wireless charging keep your devices connected throughout your journey.Off-road capability is enhanced with advanced off-road suspension, hill descent control, and two-speed active transfer case. The digital display tech includes a comprehensive head-up display, around-view camera system, and multiple charging outletsincluding 120-volt bed-mounted power for jobsite tools or camping equipment.If you've been searching for a quality heavy-duty pickup that blends modern technology with dependable performance, this Sierra 2500HD 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.