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Automax Atlanta

5034 Lawrenceville Highway, Lilburn, GA 30047
4.3
4.3 out of 5 stars
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Used 2021 GMC Sierra 1500 AT4

116,202 miles
For Sale:$35,506
Estimated payment:$805/mo.
$0 trade-in, 10% down payment, 48 months, Great credit score

Value ChartA visual chart indicating the fair price range is between $33,000 and $38,800, while the current price is $35,506.$33,000 - $38,800$35,506

  • Priced at $35,506, this vehicle is within the current market price range of $33,000 to $38,800.

  • It has 116,202 miles, which is 31,102 (37%) above the median mileage of 85,100.

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 1500 AT4 for sale near Atlanta, Lawrenceville, Alpharetta, Marietta, Decatur, Cumming, Stone Mountain, Duluth
Used 2021 GMC Sierra 1500 AT4 for sale near Atlanta, Lawrenceville, Alpharetta, Marietta, Decatur, Cumming, Stone Mountain, Duluth
Used 2021 GMC Sierra 1500 AT4 for sale near Atlanta, Lawrenceville, Alpharetta, Marietta, Decatur, Cumming, Stone Mountain, Duluth
Used 2021 GMC Sierra 1500 AT4 for sale near Atlanta, Lawrenceville, Alpharetta, Marietta, Decatur, Cumming, Stone Mountain, Duluth
Used 2021 GMC Sierra 1500 AT4 for sale near Atlanta, Lawrenceville, Alpharetta, Marietta, Decatur, Cumming, Stone Mountain, Duluth
  • Truck
  • Pickup
  • Crew Cab
  • Extended Front Legroom
  • Condition
    Used
  • Mileage
    116,202miles
  • Aggregate Ratings
    3.8
    3.8 out of 5 stars
  • Generation
    4(2019 - 2026)
  • Trim
    AT4
  • Drivetrain
    4X4
  • Transmission
    10-Speed Shiftable Automatic
  • Exterior Color
    Summit White (White)Factory Paint Code:GAZ
  • Interior Color
    Jet Black W Kalahari Accents (Black)Factory Paint Code:HVD
  • Size Segment
    1/2 Ton
  • Doors
    4
  • Max Seating
    5
  • NHTSA Safety Ratings
    4
    4 out of 5 stars
  • Final Assembly Point
    Silao, Mexico
  • VIN
    3GTU9EET9MG298041

Engine3L I6 Diesel 277hp

  • Fuel Type:Diesel
  • Max Horsepower:277 hp @ 3750 rpm
  • Max Torque:460 ft.lbf @ 1500 rpm
  • Brand:Duramax
  • Displacement:3liters
  • Block Type:I
  • Cylinders:6
  • Aspiration:Turbo
  • Fuel Induction:Common Rail Direct Injection
  • Cam Type:DOHC
  • Stroke:3.54
  • Bore:3.3
  • Valves:24

Message from the seller

WE PROVIDE FREE CARFAX AND FACTORY WINDOW OPTION STICKER ON OUR WEBSITE WWW.AUTOMAXATLANTA.COM

Discover the ultimate driving experience with this 2021 GMC Sierra 1500 AT4. Boasting a powerful 3.0L Duramax Diesel engine and a rugged 4WD drivetrain, this truck is ready to conquer any terrain. Equipped with a suite of advanced safety features, including Forward Collision Alert, Lane Keep Assist, and Automatic Emergency Braking, you can navigate the roads with confidence.

- Engine Block Heater
- 20'' Machined Aluminum Wheels with Carbon Grey Metallic Accents
- Driver Alert Package II
- Driver Alert Package I
- Trailering Package

The Sierra 1500 AT4 is designed to impress, both inside and out. The striking white exterior is complemented by the bold, aggressive styling that defines the AT4 trim. Step inside and you'll be greeted by a premium, leather-appointed interior with heated and ventilated front seats, providing unparalleled comfort and luxury.

This Sierra 1500 AT4 also boasts impressive fuel efficiency, with an EPA-estimated 22 city and 26 highway MPG, ensuring you can go the distance without frequent stops at the pump. And with the available 120-volt power outlet in the bed, you can power your tools or equipment with ease, making it the perfect companion for your work or weekend adventures.

Whether you're tackling tough terrain, hauling heavy loads, or simply enjoying the open road, this 2021 GMC Sierra 1500 AT4 is the ultimate choice. Experience the perfect blend of power, capability, and technology that will elevate your driving experience to new heights.

Don't miss your chance to make this exceptional truck your own. Visit our showroom today and let our knowledgeable team guide you through all the features and capabilities of this remarkable vehicle. We're confident you'll be impressed by the quality, performance, and value that the Sierra 1500 AT4 has to offer.

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Listed on April 4, 2026 (6 days ago)
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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.

This Used 2021 GMC Sierra 1500 AT4 is available for drivers in Atlanta, Lawrenceville, Alpharetta, Marietta, Decatur, Cumming, Stone Mountain, Duluth ...