David Scott Lee Fort Walton Beach

801 Eglin Pkwy, Fort Walton Beach, FL 32547
5
5 out of 5 stars

Used 2020 GMC Sierra 2500HD Denali

170,969 miles
For Sale:$40,900
Estimated payment:$927/mo.
$0 trade-in, 10% down payment, 48 months, Great credit score

Value ChartA visual chart indicating the fair price range is between $42,900 and $50,300, while the current price is $40,900.$42,900 - $50,300$40,900
  • Priced at $40,900, this vehicle is $2,000 (5%) below the low end of its fair market value of $42,900.

  • The current fair market price range is between $42,900 to $50,300.

  • It has 170,969 miles, which is 67,869 (66%) above the median mileage of 103,100.

Note: This is an estimate based on a variety of factors (experimental feature). It is intended to provide a fair market value range to help guide your buying decision.

View Full Value Report

SequenceDatePrice ChangeCurrent Price
1.3/27/2026 (14 days ago)$40,990
2.4/8/2026 (2 days ago)-$90 (-0.2%)$40,900
  • Truck
  • Pickup
  • Crew Cab
  • Luxury
  • Heavy Hauler
  • Extended Front Legroom
  • Condition
    Used
  • Mileage
    170,969miles
  • Aggregate Ratings
    3.8
    3.8 out of 5 stars
  • Generation
    4(2020 - 2026)
  • Trim
    Denali
  • Drivetrain
    4X4
  • Transmission
    10-Speed Shiftable Automatic
  • Exterior Color
    Onyx Black (Black)Factory Paint Code:GBA
  • Interior Color
    Jet Black (Black)Factory Paint Code:H2X
  • Size Segment
    Heavy Duty
  • Doors
    4
  • Max Seating
    5
  • Max Towing Capacity
    18,500lbs.
  • Ground Clearance
    10.1inch
  • Final Assembly Point
    Flint, Michigan
  • VIN
    1GT49REY4LF125711

Engine6.6L V8 Bio Diesel 445hp

  • Fuel Type:Bio Diesel
  • Max Horsepower:445 hp @ 2800 rpm
  • Max Torque:910 ft.lbf @ 1600 rpm
  • Brand:Duramax
  • Displacement:6.6liters
  • Block Type:V
  • Cylinders:8
  • Aspiration:Turbo
  • Fuel Induction:Common Rail Direct Injection
  • Oil Capacity:9.5liters
  • Cam Type:OHV
  • Stroke:3.9
  • Bore:4.06
  • Valves:32

Message from the seller

Experience the pinnacle of power and capability with this stunning 2020 GMC Sierra 2500HD Denali. This heavy-duty truck is built to conquer any challenge, whether you're hauling heavy loads, towing a large trailer, or navigating rugged terrain.

- Clean Carfax
- Leather
- Automatic Headlights
- Backup Camera
- Bluetooth
- Navigation
- Onyx Black Exterior
- Black Interior
- Engine Block Heater
- 220 Amps Alternator
- Duramax 6.6L V8 Turbodiesel Engine
- Denali Ultimate Package
- Technology Package
- Power Sunroof

Beneath the bold and imposing exterior lies a heart of pure strength. The Duramax 6.6L V8 Turbodiesel engine delivers an astonishing 445 horsepower and an incredible 910 lb-ft of torque, ensuring you have the power to tackle any task with ease. Paired with a smooth-shifting 10-speed automatic transmission and a capable 4-wheel-drive system, this Sierra 2500HD Denali is ready to take on the toughest jobs.

The Denali Ultimate Package elevates this truck to new heights, offering a wealth of premium features that enhance both functionality and luxury. The stunning 20-inch high-gloss black painted wheels, paired with the Onyx Black exterior, create a bold and sophisticated look that commands attention on the road. Inside, the Forge perforated leather-appointed front seats provide exceptional comfort and support, while the heated and ventilated front seats and heated rear seats ensure everyone stays cozy, no matter the weather.

The advanced technology features of this Sierra 2500HD Denali make every drive more convenient and connected. The Premium GMC Infotainment System with Navigation, Bose Premium 7-Speaker Sound System, and 4G LTE Wi-Fi Hotspot keep you entertained and informed, while the Rear Camera Mirror, Surround Vision Camera, and Ultrasonic Front and Rear Park Assist make maneuvering and parking a breeze.

Off-road enthusiasts will appreciate the X31 Off-Road Package, which includes an off-road suspension, hill descent control, and an electronic 2-speed transfer case, ensuring you can tackle the toughest terrain with confidence.

Whether you're hauling heavy equipment, towing a large trailer, or simply seeking a premium and capable heavy-duty truck, this 2020 GMC Sierra 2500HD Denali is the perfect choice. Experience the power, technology, and luxury that set this truck apart from the competition. Visit our showroom today and let us demonstrate why this Sierra 2500HD Denali is the ultimate choice for your next adventure.

* Based on opinions and should be considered as general guidance only.

  • Reliability (4)
    4 out of 5 stars
    GMC heavy-duty trucks generally have a good reputation for reliability, and the 2020 Sierra 2500HD Denali is no exception. The Duramax diesel engine is particularly known for its durability. Minor electrical glitches can occur, but major powertrain issues are rare.
  • Maintenance (3)
    3 out of 5 stars
    Maintenance costs are typical for a heavy-duty diesel truck, meaning they can be higher than a standard gasoline vehicle. Parts and labor for specialized components like the diesel engine and heavy-duty transmission can add up. Fuel economy, while decent for its class, also contributes to running costs.
  • Technology (4)
    4 out of 5 stars
    The infotainment system is user-friendly with a good touchscreen, Apple CarPlay, and Android Auto. It also boasts advanced towing technologies like multiple camera views and a transparent trailer view, which are incredibly helpful. Some might find the screen size a bit small compared to newer rivals.
  • Comfort (4)
    4 out of 5 stars
    The Denali trim offers a very comfortable cabin with high-quality materials, heated and ventilated seats, and ample space for passengers. The ride quality is good for a truck of this class, though it can still be a bit bouncy over rougher pavement when unladen.
  • Dynamics (4)
    4 out of 5 stars
    For a heavy-duty truck, the Sierra 2500HD Denali handles surprisingly well. The steering is responsive, and body roll is managed effectively, especially considering its size and towing capabilities. It feels stable on the highway and capable off-road.

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Listed on March 26, 2026 (15 days ago)
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This Used 2020 GMC Sierra 2500HD Denali is available for drivers in Fort Walton Beach, Crestview, Navarre, Niceville, Milton, Gulf Breeze, Destin, Mary Esther ...