Vehicle highlights
- 4WD
- Apple CarPlay
- Android Auto
- Blind Spot Warning
- Backup Camera
- Leather Seating
Price and listing details
Price breakdown
- MSRP
- $91,560
- List price
- $83,692
- Fees, rebates & discounts
- -$5,087
- Advertised price
- $78,605
This is the net difference between the list and advertised prices. It may include fees, rebates, discounts, or other dealer adjustments. Confirm details and eligibility with the dealer.
Mandatory dealer charges are included in this advertised price. The dealer did not provide Car Handshake with an itemized fee breakdown. View the dealer’s listing or contact the dealer for details. Taxes, title, registration, and other government charges are additional.
- Stock number
- 126214
- VIN
- 1GT4UREY7TF259305
- Seen in inventory
- Listing updated
Confirm availability and transaction details with the dealership.
Specifications
Overview
- Year
- 2026
- Make
- GMC
- Model
- Sierra 2500 HD
- Trim
- Denali
- Condition
- New
- Body
- Pickup
- Mileage
- 300 mi
Engine & drivetrain
- Fuel
- Diesel
- Driveline
- 4WD
- Transmission
- Automatic
- Displacement
- 6600 cc
- Engine
- 6.6L V8
Exterior & interior
- Exterior color
- Blue
- Interior color
- Black
Seating and powertrain
- Seats
- Not confirmed
- Third row
- Not confirmed
- Powertrain
- Diesel
Seat count does not confirm a third row. Check unconfirmed details with the dealership.
Features
40 listedSafety
12
- Backup Camera
- Blind Spot Warning
- Forward Automatic Emergency Braking
- Rear Cross Traffic Warning
- Parking Sensors (Front and Rear)
- Lane Departure Warning
Show all 12 featuresShow fewer features
- Surround View Camera
- Forward Collision Warning
- Pedestrian Automatic Emergency Braking
- Cruise Control
- Hill Start Assist
- Rear Seat Reminder
Comfort & interior
9
- Heated Front Seats
- Remote Start
- Opening Sunroof
- Leather Seating
- Ventilated Front Seats
- Heated Steering Wheel
Show all 9 featuresShow fewer features
- Push Button Start
- Power Driver Seat
- Keyless Entry
Technology
11
- Apple CarPlay
- Android Auto
- Built-in Navigation
- Wireless Phone Charging
- Head-up Display
- Bluetooth
Show all 11 featuresShow fewer features
- USB Ports
- Satellite Radio
- Touchscreen Display
- Voice Control
- Digital Instrument Cluster
Exterior & utility
8
- Trailer Hitch
- Trailer Brake Controller
- Alloy Wheels
- Fog Lights
- Rain-Sensing Wipers
- Heated Mirrors
Show all 8 featuresShow fewer features
- Tinted Windows
- Trailer Sway Control
Dealer notes
The 2026 GMC Sierra 2500HD Denali crew cab at Napleton Buick GMC in Crystal Lake arrives new with delivery miles only, finished in Downpour Metallic — a deep blue-green metallic — over Jet Black Forge Perforated Leather seating. This is a truck built around serious towing work: a Duramax 6.6L turbo-diesel V8 paired with a 10-speed automatic, the Preferred Equipment Group 5SA, the Gooseneck/5th Wheel Prep Package, an exhaust brake, a high idle switch, and a 220-amp alternator mean this crew cab is ready when the trailer is heavy and the job is real.
At a glance: Duramax 6.6L turbo-diesel V8 · 10-speed automatic · 4WD with 2-speed active transfer case · crew cab, standard bed · delivery miles only · Downpour Metallic exterior · Jet Black Forge Perforated Leather interior
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Trailering and work capability set this Denali apart from a truck that only looks the part. The ProGrade Trailering System includes HD Surround Vision, a bed view camera with two trailer camera provisions, trailer cam provisions and trailer viewing software, trailer side blind zone alert, and rear cross traffic alert.
The Gooseneck/5th Wheel Prep Package adds a hitch platform ready to accept a gooseneck or fifth-wheel hitch. An exhaust brake helps manage heavy loads on downhill grades, and the high idle switch keeps the engine running at elevated idle for PTO or accessory use.
A 120-volt bed-mounted power outlet and LED cargo area lighting round out the working end of the truck, alongside a spray-on bedliner with GMC logo and rear wheelhouse liners. The X31 Off-Road Package and LT275/65R20 all-terrain blackwall tires on 20-inch ultra-bright machined wheels extend capability when the route runs off pavement.
Inside, the Denali standard is fully met. Heated and ventilated front bucket seats and heated second-row outboard seats — all in Forge Perforated Leather — make long hauls comfortable for everyone on board.
A power sunroof, the 13.4-inch diagonal premium GMC infotainment system with Google built-in apps including navigation and voice assistance, a Bose premium 7-speaker sound system, wireless Apple CarPlay and Android Auto, wireless charging, and a mobile hotspot handle the connectivity side. A multicolor 15-inch diagonal head-up display, rear camera mirror, and a Safety Alert Seat keep the driver oriented and informed.
The Preferred Equipment Group 5SA also includes keyless open and start, remote vehicle starter system, front rain-sensing wipers, a floor-mounted center console, universal home remote, and a winter grille cover for northern Illinois winters. SiriusXM with 360L trial subscription and a power sliding rear window with defogger are part of the same package.
Napleton Buick GMC is at 6305 Northwest Hwy in Crystal Lake — on US-14, steps from the Metra UP-NW line and convenient for drivers coming from Lake in the Hills, Huntley, and McHenry. We are a family-owned group with more than 80 years in the Chicago area and a low-pressure process that lets the truck sell itself.
If you have a trailer to match, bring it — this Denali is ready to work.
Dealership location
Napleton Buick GMC Crystal Lake
6305 Northwest Highway, Crystal Lake, IL, 60014
