2026 GMC Sierra 2500

At McKenzie Buick GMC, we've proudly served Milton, FL and the surrounding communities since 1967. As a family-first dealership, we believe in doing business the right way—with transparent pricing both online and in-store, no surprises, and no games. Come experience the McKenzie Advantage and see why generations of customers say, We Are McKenzie.

- 13.4 DIAG COLOR TOUCH SCREEN GMC PREMIUM INFOTAINMENT
- HD SURROUND VISION
- WIRELESS APPLE CARPLAY AND ANDROID AUTO
- 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)
- Black Badging Package
- Gooseneck/5th Wheel Prep Package
- Preferred Equipment Group 4SG

This 2026 GMC Sierra 2500HD AT4X is built to conquer any terrain. With its powerful Duramax 6.6L V8 turbodiesel engine, this truck delivers an exceptional 470 horsepower and an astonishing 975 lb-ft of torque. Paired with a robust 10-speed automatic transmission and 4-wheel drive, the Sierra 2500HD AT4X is engineered to tackle the toughest jobs with ease.

Elevating the driving experience, this Sierra features a stunning 13.4-inch color touch screen with the premium GMC Infotainment system. Wireless Apple CarPlay and Android Auto integration keep you connected on the go, while the advanced HD Surround Vision camera system provides enhanced visibility and confidence when maneuvering. The Black Badging Package and Gooseneck/5th Wheel Prep Package further enhance the Sierra's rugged good looks and impressive capabilities.

Indulge in the unparalleled comfort and convenience of the Sierra 2500HD AT4X. Heated and ventilated front seats, a heated steering wheel, and a power sliding rear window ensure you and your passengers stay cozy, even in the harshest conditions. The Bose premium audio system delivers a concert-hall experience, while the 15-inch head-up display keeps vital information in your line of sight.

With its exceptional performance, advanced technology, and premium features, this 2026 GMC Sierra 2500HD AT4X is the ultimate workhorse for those who demand the best. Experience the McKenzie Advantage and discover why this truck is the perfect choice for your next adventure.

Thank you for visiting McKenzie Buick GMC. Proudly serving the Milton community since 1967, we're committed to delivering a straightforward, transparent buying experience every step of the way. Conveniently located near Blackwater Bay at 6500 Caroline Street (Highway 90 at the Highway 89 Bypass), we offer a full selection of competitively priced new and pre-owned cars, trucks, and SUVs. Whether you're shopping, servicing, or ordering parts, our team is here to help with no surprises—just honest, reliable service. Reach out anytime or come experience the McKenzie Advantage for yourself.