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David Scott Lee Fort Walton Beach

801 Eglin Pkwy, Fort Walton Beach, FL 32547
5
5 out of 5 stars
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Used 2021 GMC Sierra 2500HD AT4

110,348 miles
For Sale:$49,990
Estimated payment:$1,134/mo.
$0 trade-in, 10% down payment, 48 months, Great credit score

Value ChartA visual chart indicating the fair price range is between $47,200 and $55,400, while the current price is $49,990.$47,200 - $55,400$49,990

  • Priced at $49,990, this vehicle is within the current market price range of $47,200 to $55,400.

  • It has 110,348 miles, which is 23,248 (27%) above the median mileage of 87,100.

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
Used 2021 GMC Sierra 2500HD AT4 for sale near Fort Walton Beach, Crestview, Navarre, Niceville, Milton, Gulf Breeze, Destin, Mary Esther
Used 2021 GMC Sierra 2500HD AT4 for sale near Fort Walton Beach, Crestview, Navarre, Niceville, Milton, Gulf Breeze, Destin, Mary Esther
Used 2021 GMC Sierra 2500HD AT4 for sale near Fort Walton Beach, Crestview, Navarre, Niceville, Milton, Gulf Breeze, Destin, Mary Esther
Used 2021 GMC Sierra 2500HD AT4 for sale near Fort Walton Beach, Crestview, Navarre, Niceville, Milton, Gulf Breeze, Destin, Mary Esther
Used 2021 GMC Sierra 2500HD AT4 for sale near Fort Walton Beach, Crestview, Navarre, Niceville, Milton, Gulf Breeze, Destin, Mary Esther
  • Truck
  • Pickup
  • Crew Cab
  • Heavy Hauler
  • Extended Front Legroom
  • Condition
    Used
  • Mileage
    110,348miles
  • Aggregate Ratings
    3.8
    3.8 out of 5 stars
  • Generation
    4(2020 - 2026)
  • Trim
    AT4
  • Drivetrain
    4X4
  • Transmission
    10-Speed Shiftable Automatic
  • Exterior Color
    Onyx Black (Black)Factory Paint Code:GBA
  • Interior Color
    Jet Black W Kalahari Accents (Black)Factory Paint Code:HVD
  • Size Segment
    Heavy Duty
  • Doors
    4
  • Max Seating
    5
  • Max Towing Capacity
    18,500lbs.
  • Ground Clearance
    10.1inch
  • Final Assembly Point
    Flint, Michigan
  • VIN
    1GT49PEY1MF126790

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

CARFAX One-Owner. Onyx Black 2021 GMC Sierra 2500HD AT4 Duramax 6.6L V8 Turbodiesel 4WD Sierra 2500HD AAT4, 4D Crew Cab, Duramax 6.6L V8 Turbodiesel, 10-Speed Automatic, 4WD, Onyx Black, Jet Black With Kalahari Accents Leather.

Priced below KBB Fair Purchase Price!


David Scott Lee Buck GMC: Family owned and operated since 1946. Now offering home delivery to area locations. Come see the Dealership of Choice for Crestview, Niceville, Shalimar, Ft. Walton Beach, Laurel Hill, Choctaw, Defuniak Springs, Freeport, Destin, Milton, Pace and surrounding areas. Now offering sales and service for multiple makes and models including: Ford, Honda, Jeep, Dodge, Chrysler, Tesla, Cadillac, Lincoln, Kia, Mercedes Benz, Hyundai, Subaru, Nissan, Audi, Chevrolet, BMW, Lexus, Acura, INFINITI, Prosche, Mitsubishi, Land Rover, Toyota, Volkswagen, Volvo. We offer an Exclusive Unlimited Mile Lifetime Warranty on all new vehicles and most pre-owned vehicles. Come see one of our Certified Sales Specialists and find out how you can become a Customer for Life at David Scott Lee Buick GMC.

Please contact our Customer Service Team @ 850-683-8411.

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Listed on April 3, 2026 (7 days ago)
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This Used 2021 GMC Sierra 2500HD AT4 is available for drivers in Fort Walton Beach, Crestview, Navarre, Niceville, Milton, Gulf Breeze, Destin, Mary Esther ...