Experience the ultimate in power, capability, and premium comfort with the 2026 GMC Sierra 2500HD Denali. This exceptional heavy-duty truck is built to conquer any task, whether you're hauling heavy loads, towing your prized possessions, or exploring the great outdoors.<br><br>• Sierra 2500HD For Sale<br>• 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)<br>• Denali Reserve Package<br>• Gooseneck/5th Wheel Prep Package<br>• Snow Plow Prep/Camper Package<br>• Technology Package<br>• X31 Off-Road Package<br>• Power Sunroof<br>• Hill Descent Control<br>• 220-Amp Alternator<br>• Inside Rearview Auto-Dimming Rear Camera Mirror<br>• Multicolor 15 Diagonal Head-Up Display<br><br>The Sierra 2500HD Denali is powered by the legendary Duramax 6.6L V8 Turbodiesel engine, delivering an incredible 470 horsepower and an astounding 975 lb-ft of torque. This engine is paired with a smooth-shifting 10-speed automatic transmission and the confidence of 4-wheel drive, making it a true workhorse that can handle any job with ease.<br><br>Beyond its impressive performance, the Denali trim elevates the Sierra 2500HD with a wealth of premium features. Indulge in the comfort of heated and ventilated front seats, a heated steering wheel, and a Bose premium audio system. Stay connected with the latest technology, including a head-up display, wireless charging, and a suite of advanced safety features like Automatic Emergency Braking and Rear Cross Traffic Alert.<br><br>Whether you're towing a heavy trailer, navigating challenging off-road terrain, or simply enjoying the daily commute, the 2026 GMC Sierra 2500HD Denali is the ultimate heavy-duty truck that combines uncompromising capability with unparalleled luxury. Experience the difference for yourself and schedule a test drive today.<br><br>Welcome to Castle Buick GMC, your trusted Buick and GMC dealership in North Riverside, IL, proudly serving North Riverside, Cicero, Chicago, and surrounding suburbs. Explore our full lineup of new Buick vehicles, including the Buick Envista, Encore GX, Envision, and the three-row Enclave.<br><br>On the GMC side, we offer a wide selection of new SUVs and trucks, including the GMC Terrain, Acadia, Yukon, Sierra 1500, and heavy-duty Sierra HD. Each model is available in a variety of trims to match your style and performance needs.<br><br>At Castle Buick GMC, we provide competitive pricing, flexible financing options, and a friendly, expert sales team ready to help you find the perfect new Buick or GMC vehicle. Browse our new Buick and GMC inventory online or visit our North Riverside showroom today. Contact our sales team at (708)-853-3542. Price does not include tax, title, and a doc fee of $367.70.

Castle Buick GMC
7400 Cermak Rd
North Riverside, IL 60546

Additional Error Text: The Model Year decoded for this VIN may be incorrect. If you know the Model year, please enter it and decode again to get more accurate information.
Antilock Braking System Abs: Standard
Body Class: Pickup
Brake System Type: Hydraulic
Curtain Air Bag Locations: All Rows
Displacement Cc: 6600.0
Displacement Ci: 402.7567110252330741
Displacement L: 6.6
Drive Type: 4WD
Engine Configuration: V-Shaped
Engine Model: L5P
Engine Number Of Cylinders: 8
Front Air Bag Locations: 1st Row (Driver and Passenger)
Fuel Type Primary: Diesel
Gross Vehicle Weight Rating From: Class 3: 10,001 - 14,000 lb (4,536 - 6,350 kg)
Gross Vehicle Weight Rating To: Class 3: 10,001 - 14,000 lb (4,536 - 6,350 kg)
Other Engine Info: DI, DURAMAX, GEN 5 VAR. 1
Other Restraint System Info: AY0 - Active Manual Belts
Seat Belt Type: Manual
Series: 2500
Side Air Bag Locations: 1st Row (Driver and Passenger)
Trim: Denali
Turbo: Yes
Vehicle Descriptor: 1GT4UREY*TF
Vehicle Type: TRUCK