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303 West Highway 105, Monument, CO 80132
3.8
3.8 out of 5 stars
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Used 2020 GMC Sierra 2500HD AT4

73,208 miles
For Sale:$54,990
Estimated payment:$1,247/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 $54,990.$47,200 - $55,400$54,990

  • Priced at $54,990, this vehicle is within the current market price range of $47,200 to $55,400.

  • It has 73,208 miles, which is 30,592 (29%) below the median mileage of 103,800.

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
  • Truck
  • Pickup
  • Crew Cab
  • Heavy Hauler
  • Extended Front Legroom
  • Condition
    Used
  • Mileage
    73,208miles
  • 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
    Black
  • 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
    1GT49PEY8LF279830

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

Unleash the power and luxury of the 2020 GMC Sierra 2500HD AT4 Crew Cab, a robust pickup that combines performance with premium comfort. Dressed in an elegant Onyx Black exterior, this beast is powered by a formidable Duramax 6.6L Turbo-Diesel V8 engine paired with an Allison 10-speed automatic transmission, delivering an impressive 445 horsepower and a massive torque of 910 lb-ft. With its remarkable towing capacity of up to 18,500 lbs., it's ready for any challenge you throw its way. Inside, indulge in sophistication with heated and ventilated leather-appointed front bucket seats and state-of-the-art technology like the Premium GMC Infotainment System featuring navigation and Bluetooth connectivity. The crew cab offers ample space for passengers while providing conveniences such as keyless open/start, remote vehicle starter system, and advanced safety features including Lane Departure Warning and Forward Collision Alert. Experience unmatched off-road capability with the X31 Off-Road Package. Dont miss outvisit us today to test drive this exceptional truck!

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Listed on April 22, 2026 (9 hours ago)
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This Used 2020 GMC Sierra 2500HD AT4 is available for drivers in Colorado Springs, Castle Rock, Peyton, Monument, Woodland Park ...

Cruz™ Disclaimer: Vehicle details shown on this site are provided by sellers or third parties. Cruz™ does not independently verify this information and is not liable for its accuracy. All services and content are offered without any warranty, either expressed or implied. Learn more here.MPG & Max Range: Fuel economy estimates are provided by the EPA and are intended for comparison purposes only. Your actual mileage will vary depending on driving conditions, vehicle condition, and other factors.Price: Prices shown may not include taxes, fees, or other charges. Prices and availability are subject to change without notice. Contact the seller for the most current pricing information.Options & Features: Installed options may not be shown. Contact the seller for more information about available features and options.