Used GMC Sierra 1500 AT4 for Sale nearDowningtown, PA
368 vehicles found
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Gray (Dark Sky Metallic)
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 67,151
- Stock #:
- P6395
- VIN:
- 3GTP9EED6LG238531
Sponsored by Keim Chevrolet
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
67,151 mi
Paradise, PA
21 mi away
Fair Deal
$40,440
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Summit White
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 42,399
- Stock #:
- A0828
- VIN:
- 1GTUUEE86PZ319863
Sponsored Listing
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
42,399 mi
New Castle, DE
25 mi away
Fair Deal
$49,629
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Summit White
- Fuel type:
- Gasoline
- Mileage:
- 11,656
- Stock #:
- 24770A
- VIN:
- 3GTUUEEL6SG324770
Sponsored Listing
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
11,656 mi
Williamstown, NJ
45 mi away
Fair Deal
$58,854
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Gray (Dark Sky Metallic)
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black with Kalahari accents
- Transmission:
- Automatic
- Mileage:
- 32,040
- Stock #:
- 2026U
- VIN:
- 1GTP9EED8MZ362026
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
32,040 mi
Woodbury, NJ
33 mi away
Fair Deal
$43,394
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Summit White
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 13,659
- Stock #:
- BSU4862
- VIN:
- 1GTUUEEL9SZ292249
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
13,659 mi
Souderton, PA
27 mi away
Good Deal
$54,485
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Titanium Rush Metallic
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 39,379
- Stock #:
- 5260
- VIN:
- 1GTUUEE86PZ207354
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
39,379 mi
Home delivery from Seffner, FL
Price includes $957 shipping
Great Deal
$45,446
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Onyx Black
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 53,392
- Stock #:
- 5244
- VIN:
- 1GTP9EEL9MZ452163
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
53,392 mi
Home delivery from Seffner, FL
Price includes $957 shipping
Great Deal
$38,936
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Summit White Gaz
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black W/Kalahari Accents Hvd
- Transmission:
- Automatic
- Mileage:
- 24,124
- Stock #:
- 5081PB
- VIN:
- 1GTUUEEL4RZ276020
Price drop
-$1,250
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
24,124 mi
New Holland, PA
19 mi away
Great Deal
$53,265
$52,015
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Thunderstorm Gray
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 22,234
- Stock #:
- RG372520
- VIN:
- 3GTUUEEL0RG372520
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
22,234 mi
Feasterville Trevose, PA
40 mi away
Fair Deal
$55,157
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Onyx Black
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black with Kalahari accents
- Transmission:
- Automatic
- Mileage:
- 27,776
- Stock #:
- PA8535
- VIN:
- 1GTUUEEL7PZ173624
Price drop
-$1,401
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
27,776 mi
Montgomeryville, PA
29 mi away
Good Deal
$53,454
$52,053
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Summit White
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 6,124
- Stock #:
- SG386096
- VIN:
- 3GTUUEE84SG386096
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
6,124 mi
Feasterville Trevose, PA
40 mi away
Fair Deal
$59,209
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Gray (Satin Steel Metallic)
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 90,012
- Stock #:
- VC26162
- VIN:
- 1GTU9EET9MZ174397
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
90,012 mi
Home delivery from Hicksville, OH
Price includes $600 shipping
Good Deal
$33,255
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Onyx Black
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 35,643
- Stock #:
- 10071
- VIN:
- 1GTUUEEL3PZ210071
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
35,643 mi
Cherry Hill, NJ
37 mi away
Fair Deal
$52,065
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Onyx Black
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- 10-Speed Automatic
- Mileage:
- 7,612
- Stock #:
- K88011
- VIN:
- 1GTUUEE80TZ291486
2026 GMC Sierra 1500
AT4 Crew Cab 4WD
7,612 mi
Home delivery from Herculaneum, MO
Price includes $1,590 shipping
Good Deal
$58,956
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Summit White
- Fuel type:
- Gasoline
- Interior color:
- Jet Black with Kalahari accents
- Transmission:
- Automatic
- Mileage:
- 6,357
- Stock #:
- C699062
- VIN:
- 1GTUUEELXSZ323394
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
6,357 mi
Elverson, PA
10 mi away
Good Deal
$55,485
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Summit White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 3,024
- Stock #:
- 22791
- VIN:
- 3GTUUEEL7RG217494
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
3,024 mi
Home delivery from Tampa, FL
Price includes $958 shipping
Great Deal
$54,450
- Year:
- 2022
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Summit White
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 56,420
- Stock #:
- U20707T
- VIN:
- 1GTPUEEL6NZ638727
Price drop
-$1,001
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
56,420 mi
Home delivery from St James, NY
Free home delivery
Great Deal
$42,996
$41,995
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Gray (Dark Sky Metallic)
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 67,151
- Stock #:
- P6395
- VIN:
- 3GTP9EED6LG238531
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
67,151 mi
Paradise, PA
21 mi away
Fair Deal
$40,440
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Summit White
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 132,859
- Stock #:
- LG113185
- VIN:
- 3GTP9EED2LG113185
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
132,859 mi
Maple Shade, NJ
39 mi away
Good Deal
$28,569
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Thunderstorm Gray
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 32,986
- Stock #:
- DC26185
- VIN:
- 1GTUUEEL1RZ273866
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
32,986 mi
Home delivery from Delphos, OH
Price includes $571 shipping
Fair Deal
$53,295
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Sterling Metallic
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 7,142
- Stock #:
- Y1509
- VIN:
- 1GTUUEEL4SZ265332
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
7,142 mi
Home delivery from Kernersville, NC
Price includes $718 shipping
Fair Deal
$59,552
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Gray
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 49,919
- Stock #:
- MX5011
- VIN:
- 1GTU9EET1MZ393032
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
49,919 mi
Home delivery from Louisville, TN
Price includes $968 shipping
Fair Deal
$40,167
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Black (Ebony Twilight Metallic)
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 75,009
- Stock #:
- G21411
- VIN:
- 3GTP9EEL5MG321411
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
75,009 mi
Ephrata, PA
26 mi away
Good Deal
$37,900
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Summit White
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 13,914
- Stock #:
- 12883FM
- VIN:
- 1GTUUEE83SZ190635
New arrival
Sponsored Listing
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
13,914 mi
Ephrata, PA
27 mi away
Fair Deal
$60,390
Overview
The GMC Sierra 1500 is a spacious and capable pickup. It is offered in a number of trims providing a wide array of creature comforts. While GMC might be more sooner associated with the chrome-clad Denali variants, the Sierra is also available in more outdoorsy trims, such as the AT4. Designed as a sort of the anti-Denali, the AT4 is designed to get muddy. It features a 2-inch lift, Rancho shocks, upgraded underbody skid plates, an Auto-Trap two-speed transfer case, and a locking rear differential. The AT4 is not without niceties, as it receives a unique black interior with Kalahari accents and a host of creature comforts. The AT4 trim was introduced with the redesigned Sierra 1500 in 2019 and has continued through the 1500’s 2022 model year update.
Key Features
- Gas V8, Duramax Turbodiesel I6
- 2-inch suspension lift w/ Rancho shocks
- Skid plates
- Heated/ventilated front seats, leather upholstery
- Touchscreen infotainment w/ Apple CarPlay, Android Auto
Pricing Details
In Crew Cab configuration, the 2023 GMC Sierra 1500 AT4 carries a $66,700 MSRP. Used examples on CarGurus range from $24,185.00 to $86,306.20 with an average price of $32,717.35. The Sierra 1500 AT4 is available with a number of options packages. The Premium Package adds a number of upgraded driver assistance features. The Technology Package adds a head-up display, bed view camera, and rear camera mirror. The AT4 Preferred Package adds a universal garage door opener, adaptive cruise control, and a power-sliding rear window with a defogger.
Specifications
Performance
Engine
6.2-liter gas V8, 3.0-liter turbodiesel I6
Transmission
Eight-speed automatic (gas), 10-speed automatic (diesel)
Drivetrain
Four-wheel drive (4WD)
Horsepower/Torque
420 hp/460 lb-ft (gas) / 277 hp/460 lb-ft (diesel)
0-60 mph
5.8 seconds
MPG
24 mpg city, 34 mpg highway, 28 combined (6AT) / 26 mpg city, 36 mpg highway, 30 combined (5MT)
Curb weight
4,816 pounds
Dimensions
wheelbase
147.53 inches
length
231.72 inches
width
81.24 inches
height
78.35 inches
*CarGurus meticulously monitors the prices of millions of pre-owned vehicle listings, offering users precise and up-to-date market insights. Historical pricing data excludes any additional dealer fees as of May 3, 2026.
4.0 Overall rating
Filter by rating
Anonymous
Reviewed a 2019 GMC AT4 Crew Cab 4WD on Sep 9, 2024
The truck had all the features I wanted and the price was in-line, or better with others in my search.
Is this review helpful?
Buddy H
Reviewed a 2019 GMC AT4 Crew Cab 4WD on Jan 5, 2025
Slightly over priced for the miles I would pay $29000-$30000 all day
Is this review helpful?
FAQs
How much does the GMC Sierra 1500 AT4 cost in Downingtown, PA?
The average GMC Sierra 1500 AT4 costs about $31,219.80. The average price has decreased by -3% since last year. The 369 for sale near Downingtown, PA on CarGurus, range from $24,185 to $86,306 in price.
How many GMC Sierra 1500 AT4 vehicles in Downingtown, PA have no reported accidents or damage?
333 out of 369 for sale near Downingtown, PA have no reported accidents or damage.
What is the fuel economy of the GMC Sierra 1500 AT4?
Depending on the engine and options, the GMC Sierra 1500 AT4 gets between 15 and 24 MPG/MPGe.
What fuel types are available?
Diesel, Gasoline engines are available.
*CarGurus meticulously monitors the prices of millions of pre-owned vehicle listings, offering users precise and up-to-date market insights. Historical pricing data excludes any additional dealer fees as of May 3, 2026.
Relevant articles
CarGurus Editorial Team
Best Truck Lease Deals in September 2026
Leasing a truck can be a great way to get into one of the latest models, with the best technology, at a more affordable monthly price. Here are the best deals we've found this month.
CarGurus Editorial Team
Best Car Deals in September 2026
In the market for a new or used car this year? Whether you’re looking to buy or lease, we’ve collated a list of the best car deals available this month.
CarGurus Editorial Team
Car Deals with 0% APR in September 2026
Our experts have tracked down the latest 0% APR car deals, as well as examined the pros and cons of interest-free car loans versus other financing options.
GMC Sierra 1500 SLT in Downingtown PAGMC Sierra 1500 Denali in Downingtown PAGMC Sierra 1500 AT4 in Downingtown PAGMC Sierra 1500 Elevation in Downingtown PAGMC Sierra 1500 SLE in Downingtown PAGMC Sierra 1500 Base in Downingtown PAGMC Sierra 1500 Work Truck in Downingtown PAGMC Sierra 1500 SLE1 in Downingtown PAGMC Sierra 1500 SL in Downingtown PAGMC Sierra 1500 SLE2 in Downingtown PA
GMC Sierra 1500 in Downingtown PAOBS 1990s-era Chevy and Ford Trucks for Sale in Downingtown PAUsed GMC Electric Cars for SaleLifted GMC trucks for sale in Downingtown PAWork Trucks for Sale in Downingtown PAAmerican Made Trucks For Sale in Downingtown PAGM Certified Preowned Vehicles for Sale Near Downingtown PABest Pickup Trucks For Sale in Downingtown PA
All Used CarsManual Transmission CarsLuxury CarsCars with Red InteriorCheap Manual CarsHybrid CarsSports CarsElectric SUVsCheap TrucksSmall CarsThird Row SUVsThree Quarter Ton TrucksLifted TrucksManual Transmission TrucksDiesel TrucksHybrid SUVsDually TrucksOne Ton TrucksCheap SUVsLifted Ford Trucks4x4 TrucksWork TrucksAWD SUVsFord TrucksChevrolet TrucksToyota TrucksTrucks Under $10,000Cars Under $15,000Sports Cars Under $20,000Trucks Under $20,000Used Sedans for Sale with Low Mileage in DowningtownUsed SUVs / Crossovers for Sale with Low Mileage in DowningtownUsed Hatchbacks for Sale with Low Mileage in DowningtownUsed Convertibles for Sale with Low Mileage in DowningtownUsed Vans for Sale with Low Mileage in DowningtownUsed Minivans for Sale with Low Mileage in DowningtownUsed Pickup Trucks for Sale with Low Mileage in DowningtownUsed Coupes for Sale with Low Mileage in DowningtownUsed Wagons for Sale with Low Mileage in Downingtown
Union Park Automotive GroupF.C. Kerbeck Premium Brands & Pre-Owned CadillacStar Buick GMC Cadillac LlcBridgeton Auto MallAnderson Automotive of AbingdonTurner Buick GMCProvidence Chrysler Dodge Jeep RAMMiracle Buick GMC of KutztownFaulkner Buick GMC of West ChesterHill Buick GMCBergey's Buick GMCO'Neil GMC
