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Mary Auto Sales

2200 N central express Expy, Mckinney, TX 75070
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Used 2025 GMC Sierra 2500HD AT4X

20,561 miles
For Sale:$88,995
Estimated payment:$2,018/mo.
$0 trade-in, 10% down payment, 48 months, Great credit score

Value ChartA visual chart indicating the fair price range is between $75,900 and $89,100, while the current price is $88,995.$75,900 - $89,100$88,995

  • Priced at $88,995, this vehicle is within the current market price range of $75,900 to $89,100.

  • It has 20,561 miles, which is close to the median mileage of 19,600.

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 2025 GMC Sierra 2500HD AT4X for sale near Dallas, Plano, Garland, Mckinney, Frisco, Carrollton, Lewisville, Allen
Used 2025 GMC Sierra 2500HD AT4X for sale near Dallas, Plano, Garland, Mckinney, Frisco, Carrollton, Lewisville, Allen
Used 2025 GMC Sierra 2500HD AT4X for sale near Dallas, Plano, Garland, Mckinney, Frisco, Carrollton, Lewisville, Allen
Used 2025 GMC Sierra 2500HD AT4X for sale near Dallas, Plano, Garland, Mckinney, Frisco, Carrollton, Lewisville, Allen
Used 2025 GMC Sierra 2500HD AT4X for sale near Dallas, Plano, Garland, Mckinney, Frisco, Carrollton, Lewisville, Allen
  • Truck
  • Pickup
  • Crew Cab
  • High-Tech
  • Heavy Hauler
  • Extended Front Legroom
  • Vaulted Headroom
  • Condition
    Used
  • Mileage
    20,561miles
  • Aggregate Ratings
    4
    4 out of 5 stars
  • Generation
    4(2020 - 2026)
  • Trim
    AT4X
  • Drivetrain
    4X4
  • Transmission
    10-Speed Shiftable Automatic
  • Exterior Color
    Summit White (White)Factory Paint Code:GAZ
  • Interior Color
    Obsidian Rush (Black)Factory Paint Code:H9J
  • Upholstery
    Leather
  • Size Segment
    Heavy Duty
  • Doors
    4
  • Max Seating
    5
  • Max Towing Capacity
    18,500lbs.
  • Weight Class
    10,000-14,000 lbs. (3)
  • Bed Length
    82.2in.
  • Ground Clearance
    11.6inch
  • Final Assembly Point
    Flint, Michigan
  • VIN
    1GT4UZEY3SF118066
  • Starting MSRP
    $83,200

Engine6.6L V8 Bio Diesel 470hp

  • Fuel Type:Bio Diesel
  • Max Horsepower:470 hp @ 2800 rpm
  • Power to Weight Ratio:15.99lbs/hp
  • Max Torque:975 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

The 2025 GMC Sierra 2500 HD AT4X in Summit White is built for those who demand extreme capability without sacrificing premium comfort. With its aggressive AT4X styling, bold stance, and refined design, this heavy-duty truck is ready to take on challenging terrain while turning heads wherever it goes. Powered by the legendary Duramax 6.6L Turbo-Diesel engine, it delivers exceptional towing power and torque for both work and adventure.

Equipped with a gooseneck/5th wheel package and hitch package, this Sierra is fully prepared for serious towing needs, offering stability and confidence when hauling heavy loads. The spray-on bedliner adds durability and protection to the truck bed, making it ready for tough jobs day in and day out. Whether you're on the job site or off the beaten path, this truck is designed to perform at a high level.

Inside, the AT4X trim surrounds you with comfort, featuring heated and ventilated front seats to keep you comfortable in any season. Combining off-road capability, advanced features, and upscale refinement, this Sierra 2500 HD AT4X stands out as a powerful and versatile truck built for demanding drivers.

Proudly serving McKinney, Allen, Plano, Frisco, The Colony and all of DFW and North Texas.

  • Comfort & Seating:

    • Heated Seats
    • Heated Steering Wheel
    • Power Seats
    • Ventilated Seats

  • Convenience:

    • 115V Power Outlet
    • Adaptive Cruise Control
    • Automatic Climate Control
    • Garage Door Opener
    • Head-Up Display
    • Parking Sensors
    • Rain Sensing Wipers
    • Remote Start

  • Entertainment:

    • Bluetooth
    • Premium Audio
    • Satellite Radio

  • Exterior:

    • Heated Mirrors
    • Sunroof/Moonroof
    • Tinted Windows

  • Other:

    • Trailer Hitch

  • Safety:

    • Automatic Emergency Braking
    • Autonomous Braking
    • Backup Camera
    • Blind Spot Monitor
    • Collision Avoidance
    • Cross Traffic Alert
    • Lane Departure Warning
    • Lane Keeping Assistance
    • Surround View Camera
    • Tire Pressure Monitoring

  • Technology:

    • Android Auto
    • Navigation

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Listed on March 24, 2026 (16 days ago)
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This Used 2025 GMC Sierra 2500HD AT4X is available for drivers in Dallas, Plano, Garland, Mckinney, Frisco, Carrollton, Lewisville, Allen ...