Used GMC Sierra 1500 AT4 for Sale nearHartly, DE
345 vehicles found
- 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 (Satin Steel Metallic)
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents, Perforated Leathe
- Transmission:
- Automatic
- Mileage:
- 207,723
- Stock #:
- G3550A
- VIN:
- 3GTP9EED7MG393087
Sponsored by Pointe GMC
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
207,723 mi
Penns Grove, NJ
42 mi away
Good Deal
$23,321
- 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:
- Gray
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 2,593
- Stock #:
- PFL-3992
- VIN:
- 3GTUUEEL4RG365473
Sponsored Listing
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
2,593 mi
Alexandria, VA
78 mi away
Great Deal
$57,624
- 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 With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 81,773
- Stock #:
- MZ430492
- VIN:
- 1GTU9EET2MZ430492
Sponsored Listing
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
81,773 mi
Bethesda, MD
77 mi away
Good Deal
$36,201
- Year:
- 2019
- 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 (Satin Steel Metallic)
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- 8-Speed Automatic
- Mileage:
- 86,805
- Stock #:
- KG257939
- VIN:
- 3GTP9EED3KG257939
New arrival
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
86,805 mi
Prince Frederick, MD
64 mi away
Fair Deal
$35,799
- 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 With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 81,773
- Stock #:
- MZ430492
- VIN:
- 1GTU9EET2MZ430492
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
81,773 mi
Bethesda, MD
77 mi away
Good Deal
$36,201
- Year:
- 2020
- 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:
- 85,404
- Stock #:
- LG121721
- VIN:
- 3GTP9EEL8LG121721
New arrival
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
85,404 mi
Harrisburg, PA
98 mi away
Good Deal
$35,978
- 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 With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 135,920
- Stock #:
- CA5007
- VIN:
- 1GTP9EEL9MZ256353
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
135,920 mi
Chantilly, VA
97 mi away
Good Deal
$30,990
- 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:
- Black
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 18,903
- Stock #:
- KWMPNZ510524
- VIN:
- 1GTPUEELXNZ510524
New arrival
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
18,903 mi
White Marsh, MD
43 mi away
Fair Deal
$52,800
- 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:
- Gray
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 2,593
- Stock #:
- PFL-3992
- VIN:
- 3GTUUEEL4RG365473
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
2,593 mi
Alexandria, VA
78 mi away
Great Deal
$57,624
- 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:
- Summit White
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 64,954
- Stock #:
- 260519A
- VIN:
- 3GTP9EED0MG430982
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
64,954 mi
Reading, PA
81 mi away
Good Deal
$38,490
- Year:
- 2022
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Summit White
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Transmission:
- Automatic
- Mileage:
- 122,603
- Stock #:
- 592831
- VIN:
- 1GTUUEET7NZ592831
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
122,603 mi
Home delivery from Rome, GA
Price includes $781 shipping
Good Deal
$35,776
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Sterling Metallic
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 54,645
- Stock #:
- I153784
- VIN:
- 1GTUUEE88RZ153784
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
54,645 mi
Home delivery from Archbold, OH
Price includes $1,446 shipping
Great Deal
$46,729
- 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:
- Dynamic Blue Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 60,613
- Stock #:
- 22716
- VIN:
- 1GTUUEEL7PZ119174
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
60,613 mi
Home delivery from Tampa, FL
Price includes $902 shipping
Great Deal
$42,899
- 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:
- Summit White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 21,532
- Stock #:
- 7706P
- VIN:
- 1GTUUEEL8PZ241509
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
21,532 mi
Home delivery from Mystic, CT
Price includes $249 shipping
Great Deal
$48,823
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Gray (Dark Sky Metallic)
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 98,785
- Stock #:
- 18235B
- VIN:
- 3GTP9EEL4LG162346
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
98,785 mi
Havre De Grace, MD
35 mi away
Good Deal
$35,288
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Carbon Black Metallic
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black W/Kalahari Acce
- Transmission:
- Automatic
- Mileage:
- 94,818
- Stock #:
- P4476
- VIN:
- 1GTU9EET5LZ273118
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
94,818 mi
Home delivery from Monroe, NC
Free home delivery
Great Deal
$34,311
- 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:
- Onyx Black
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 37,635
- Stock #:
- C2260156A
- VIN:
- 1GTUUEEL4RZ109124
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
37,635 mi
Sellersville, PA
85 mi away
Good Deal
$53,040
- 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:
- Gray (Steel Metallic)
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 111,552
- Stock #:
- 446945
- VIN:
- 1GTP9EEL9MZ446945
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
111,552 mi
Home delivery from Columbus, OH
Price includes $794 shipping
Great Deal
$33,304
- Year:
- 2022
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- White
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 95,521
- Stock #:
- 592401
- VIN:
- 1GTUUEET4NZ592401
Price drop
-$1,000
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
95,521 mi
Ephrata, PA
78 mi away
Good Deal
$39,990
$38,990
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Sterling Metallic
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 83,109
- Stock #:
- PZ290188
- VIN:
- 1GTUUEE81PZ290188
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
83,109 mi
Harrisburg, PA
98 mi away
Good Deal
$44,054
- 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:
- Gray (Dark Sky Metallic)
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 121,173
- VIN:
- 1GTP9EEL5MZ226461
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
121,173 mi
Home delivery from Portland, OR
Price includes $3,598 shipping
Fair Deal
$33,448
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Exterior color:
- Red Quartz Tintcoat
- Interior color:
- Jet Black with Kalahari accents
- Transmission:
- Automatic
- Mileage:
- 49,501
- Stock #:
- 260506B
- VIN:
- 3GTP9EEL3LG173886
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
49,501 mi
Milford, DE
19 mi away
Fair Deal
$42,732
- 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
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 83,593
- Stock #:
- KATPMG460635
- VIN:
- 3GTP9EEL9MG460635
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
83,593 mi
Annapolis, MD
46 mi away
Great Deal
$36,066
- 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:
- Cayenne Red Tintcoat
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 34,156
- Stock #:
- T57025B
- VIN:
- 3GTP9EED8MG223241
Sponsored Listing
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
34,156 mi
Dillsburg, PA
98 mi away
Good Deal
$42,490
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 $23,321.00 to $85,493.00 with an average price of $33,799.71. 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
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 Hartly, DE?
The average GMC Sierra 1500 AT4 costs about $32,255.10. The average price has decreased by -1% since last year. The 275 for sale near Hartly, DE on CarGurus, range from $23,321 to $85,493 in price.
How many GMC Sierra 1500 AT4 vehicles in Hartly, DE have no reported accidents or damage?
255 out of 275 for sale near Hartly, DE 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 (or EV battery range).
What fuel types are available?
Diesel, Gasoline engines are available.
Relevant articles
CarGurus Editorial Team
The Best Gas Mileage Trucks of 2026
No one wants to cover unnecessary fuel expenses, particularly when operating a business. Here are the top 9 pickup trucks in the US market with the best fuel efficiency.
Craig Fitzgerald
The Best Trucks Under $25,000 in 2026
New trucks cost more than ever, but the prices of used ones finally seem to be cooling. You still can't find the latest and fanciest full-sizes for budget prices, but fortunately, there are plenty of good trucks under $25,000 these days. Here, we've assembled a list of the best.
CarGurus Editorial Team
Best Truck Lease Deals in June 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.
GMC Sierra 1500 SLT in Hartly DEGMC Sierra 1500 Denali in Hartly DEGMC Sierra 1500 AT4 in Hartly DEGMC Sierra 1500 Elevation in Hartly DEGMC Sierra 1500 SLE in Hartly DEGMC Sierra 1500 Base in Hartly DEGMC Sierra 1500 Work Truck in Hartly DEGMC Sierra 1500 SL in Hartly DEGMC Sierra 1500 SLE1 in Hartly DEGMC Sierra 1500 SLE2 in Hartly DE
GMC Sierra 1500 in Hartly DEOBS 1990s-era Chevy and Ford Trucks for Sale in Hartly DEUsed GMC Electric Cars for SaleLifted GMC trucks for sale in Hartly DEWork Trucks for Sale in Hartly DEAmerican Made Trucks For Sale in Hartly DEGM Certified Preowned Vehicles for Sale Near Hartly DEBest Pickup Trucks For Sale in Hartly DE
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 HartlyUsed SUVs / Crossovers for Sale with Low Mileage in HartlyUsed Hatchbacks for Sale with Low Mileage in HartlyUsed Convertibles for Sale with Low Mileage in HartlyUsed Vans for Sale with Low Mileage in HartlyUsed Minivans for Sale with Low Mileage in HartlyUsed Pickup Trucks for Sale with Low Mileage in HartlyUsed Coupes for Sale with Low Mileage in HartlyUsed Wagons for Sale with Low Mileage in Hartly
