2026 GMC Sierra 3500

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
- Black Badging Package
- Gooseneck/5th Wheel Prep Package
- Preferred Equipment Group 5SB
- Technology Package
- X31 Off-Road Package
- Bose Premium Series 12-Speaker System
- SiriusXM with 360L Trial Subscription
- Steering Wheel Audio Controls

This 2026 GMC Sierra 3500HD Denali Ultimate in White is packed with premium features that elevate the driving experience. The powerful Duramax 6.6L V8 Turbodiesel engine and 10-speed automatic transmission provide exceptional capability, while the advanced 4WD system ensures confident handling in any conditions.

Inside, the Sierra Denali Ultimate delivers uncompromising luxury and technology. The 13.4 color touch screen with wireless Apple CarPlay and Android Auto integration keeps you seamlessly connected. The Bose premium audio system and SiriusXM with 360L provide an immersive listening experience. Heated and ventilated front seats, a heated steering wheel, and a power sunroof add to the premium ambiance.

Beyond comfort, this Sierra is engineered for utility. The Gooseneck/5th Wheel Prep Package, Off-Road Suspension, and ProGrade Trailering System make it a capable partner for the toughest jobs. The spray-on bedliner, 120-volt power outlets, and LED cargo lighting ensure you can tackle any task with ease.

With its bold Vader Chrome Denali grille, black exterior accents, and 20 machined aluminum wheels, the Sierra Denali Ultimate makes a powerful statement. This meticulously maintained, one-owner truck is ready to take your adventures to new heights.

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.