We are grateful that you have given us the opportunity to earn your business. Dillon GMC Guarantees your best price on every vehicle in stock. Plus, buy with peace of mind when purchasing a New or Used vehicle with our Love It or Leave It Guarantee! Have a trade in We need your current vehicle and will pay you top value for nearly any auto, powersport, motorcycle, boat, etc. Come see why Dillon GMC is your best choice for a New or Used vehicle. Your satisfaction is our top priority. That's the Dillon Difference!- DENNIS DILLON DEAL- Bose Premium Series 12-Speaker System- Premium GMC Infotainment System- 3.42 Axle Ratio- 120-Volt Bed Mounted Power Outlet- Heads-Up Display- Off-Road Suspension- Auto-dimming Rear-View mirror- Trailer Cam Provisions and Trailer Viewing Software- Gooseneck/5th Wheel Prep Package- Max Trailering Package- Technology Package- X31 Off-Road PackageRugged, capable, and refined - the 2026 GMC Sierra 2500HD Denali Ultimate is the ultimate heavy-duty pickup. Powered by the legendary Duramax 6.6L V8 Turbodiesel engine and equipped with a 10-speed automatic transmission, this Sierra delivers exceptional towing and hauling performance. With its premium Bose audio system, advanced infotainment technology, and a stunning Vadar Chrome grille, the Denali Ultimate exudes both capability and sophistication.The Sierra's interior is equally impressive, featuring premium leather seating, heated and ventilated front seats, and a head-up display that puts critical information right in your line of sight. The available Max Trailering Package, Gooseneck/5th Wheel Prep Package, and X31 Off-Road Package ensure this truck is ready to tackle any job or adventure with ease.Whether you're hauling heavy loads, towing a trailer, or venturing off-road, the 2026 GMC Sierra 2500HD Denali Ultimate is the ultimate heavy-duty pickup. Its combination of power, technology, and premium features make it the perfect choice for discerning truck buyers who demand the best.The Sierra's advanced safety features, including Automatic Emergency Braking, Forward Collision Alert, and Lane Departure Warning, provide you and your loved ones with added peace of mind on the road. And with the available Trailer Cam Provisions and Trailer Viewing Software, you'll have enhanced visibility and control when towing.Experience the unparalleled capability and sophistication of the 2026 GMC Sierra 2500HD Denali Ultimate. Schedule a test drive today and discover why this truck is the ultimate choice for those who demand the best.Family owned and operated for over 50 years!