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21518 Great Cove Rd, McConnellsburg, PA 17233
4.7
4.7 out of 5 stars
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Used 2025 GMC Sierra 2500HD AT4

18,013 miles
For Sale:$77,995
Estimated payment:$1,769/mo.
$0 trade-in, 10% down payment, 48 months, Great credit score

Value ChartA visual chart indicating the fair price range is between $69,200 and $81,200, while the current price is $77,995.$69,200 - $81,200$77,995

  • Priced at $77,995, this vehicle is within the current market price range of $69,200 to $81,200.

  • It has 18,013 miles, which is 1,313 (8%) above the median mileage of 16,700.

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 AT4 for sale near Chambersburg, Greencastle, Mercersburg, Everett
Used 2025 GMC Sierra 2500HD AT4 for sale near Chambersburg, Greencastle, Mercersburg, Everett
Used 2025 GMC Sierra 2500HD AT4 for sale near Chambersburg, Greencastle, Mercersburg, Everett
Used 2025 GMC Sierra 2500HD AT4 for sale near Chambersburg, Greencastle, Mercersburg, Everett
Used 2025 GMC Sierra 2500HD AT4 for sale near Chambersburg, Greencastle, Mercersburg, Everett
  • Truck
  • Pickup
  • Crew Cab
  • High-Tech
  • Heavy Hauler
  • Extended Front Legroom
  • Condition
    Used
  • Mileage
    18,013miles
  • Aggregate Ratings
    4
    4 out of 5 stars
  • Generation
    4(2020 - 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
    Heavy Duty
  • Doors
    4
  • Max Seating
    5
  • Max Towing Capacity
    16,000lbs.
  • Ground Clearance
    10.1inch
  • Final Assembly Point
    Flint, Michigan
  • VIN
    1GT4UPEY0SF351990

Engine6.6L V8 Bio Diesel 470hp

  • Fuel Type:Bio Diesel
  • Max Horsepower:470 hp @ 2800 rpm
  • 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

Drive home a powerful 2025 GMC Sierra 2500 AT4 with only 18,010 miles - a like-new heavy-duty truck at the best price in McConnellsburg, PA. This 4WD GMC Sierra is powered by a robust V8 6.6L Diesel engine, offering exceptional towing capability, endurance, and highway fuel efficiency for a diesel. Low mileage means years of dependable performance ahead for work or weekend adventures.

Step inside to premium leather seats that provide comfort during long hauls, while the BOSE stereo and XM Radio deliver excellent in-cabin entertainment. The integrated back-up camera enhances safety and maneuverability when towing or parking. This GMC Sierra is a CARFAX 1-Owner vehicle, reflecting careful ownership and a strong service history.

The AT4 trim combines off-road capability with refined interior features, making it a versatile choice for contractors, outdoor enthusiasts, or anyone needing serious payload and towing capacity without sacrificing comfort. Located now in McConnellsburg, PA, this GMC Sierra 2500 is priced to move and represents the best value in the area considering its diesel power, low miles, and premium equipment.

Schedule a test drive today to experience the torque and ride quality of the V8 6.6L Diesel. Vehicles like this with low mileage and premium features at this price don't stay available long.

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Listed on April 8, 2026 (a day 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 2025 GMC Sierra 2500HD AT4 is available for drivers in Chambersburg, Greencastle, Mercersburg, Everett ...