Used GMC Sierra 1500 AT4 for Sale near Unity, IL
432 results
- 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
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 58,559
- Stock #:
- MZ192986J
- VIN:
- 1GTP9EEL1MZ192986
New arrival
Sponsored by Expressway Jeep Chrysler Dodge
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
58,559 mi
Mount Vernon, IN
89 mi away
Good Deal
$39,990
- 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
- Interior color:
- Jet Black w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 129,710
- Stock #:
- P4797
- VIN:
- 3GTP9EED2MG201803
Sponsored Listing
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
129,710 mi
Cape Girardeau, MO
20 mi away
Fair Deal
$33,199
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Onyx Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 16,929
- Stock #:
- D3892A
- VIN:
- 3GTUUEE80SG164736
Sponsored Listing
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
16,929 mi
Paducah, KY
35 mi away
Good Deal
$58,545
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Transmission:
- Automatic
- Mileage:
- 139,785
- Stock #:
- MZ299253
- VIN:
- 1GTU9EET7MZ299253
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
139,785 mi
Home delivery from Forney, TX
Price includes $758 shipping
Good Deal
$28,480
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- White
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 39,014
- VIN:
- 3GTUUEE85RG291413
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
39,014 mi
Milan, TN
89 mi away
Fair Deal
$55,299
- 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:
- Black
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Mileage:
- 77,002
- Stock #:
- X150616
- VIN:
- 1GTP9EEL2LZ150616
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
77,002 mi
Home delivery from Addison, TX
Price includes $514 shipping
Good Deal
$35,752
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Gray
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 52,657
- Stock #:
- 6148A
- VIN:
- 3GTUUEE82RG354502
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
52,657 mi
Paragould, AR
98 mi away
Great Deal
$50,995
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Thunderstorm Gray
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 25,779
- Stock #:
- 14860A
- VIN:
- 1GTUUEE81RZ274978
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
25,779 mi
Farmington, MO
78 mi away
Great Deal
$52,941
- 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
Good Deal
$34,640
- 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:
- Black
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 53,607
- Stock #:
- 215005
- VIN:
- 3GTUUEEL0RG215005
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
53,607 mi
Benton, MO
15 mi away
Great Deal
$47,800
- 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 (Satin Steel Metallic)
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 69,956
- Stock #:
- 100473
- VIN:
- 3GTP9EEL6LG162204
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
69,956 mi
Home delivery from Merritt Island, FL
Price includes $1,576 shipping
Good Deal
$39,611
- 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 $778 shipping
Good Deal
$33,288
- 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:
- Jet Black W/Kalahari Acce
- Transmission:
- Automatic
- Mileage:
- 47,426
- Stock #:
- H15455
- VIN:
- 1GTUUEEL0PZ127858
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
47,426 mi
Humboldt, TN
94 mi away
Good Deal
$48,189
- 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
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 45,866
- Stock #:
- H15548
- VIN:
- 1GTUUEE87PZ320679
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
45,866 mi
Humboldt, TN
94 mi away
Good Deal
$48,986
- 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:
- 88,915
- Stock #:
- B0515A
- VIN:
- 3GTP9EEL6MG409674
New arrival
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
88,915 mi
Benton, KY
55 mi away
Great Deal
$36,840
- 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 $381 shipping
Good Deal
$35,376
- 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:
- 53,614
- Stock #:
- I153784
- VIN:
- 1GTUUEE88RZ153784
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
53,614 mi
Home delivery from Archbold, OH
Price includes $1,218 shipping
Great Deal
$47,664
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Onyx Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 30,305
- Stock #:
- J266020A
- VIN:
- 1GTUUEE8XPZ177307
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
30,305 mi
Home delivery from Bridgeton, MO
Price includes $195 shipping
Good Deal
$49,785
- 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:
- Summit White
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 68,152
- Stock #:
- D5421L
- VIN:
- 1GTP9EEL9MZ448873
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
68,152 mi
Home delivery from Dublin, OH
Price includes $588 shipping
Fair Deal
$40,936
- 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:
- Sterling Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 83,882
- Stock #:
- HG8760B
- VIN:
- 3GTUUEEL7PG266434
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
83,882 mi
Humboldt, TN
94 mi away
Good Deal
$44,862
- 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:
- Summit White
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 59,607
- Stock #:
- MX4583
- VIN:
- 1GTP9EEL3MZ170715
New arrival
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
59,607 mi
Home delivery from Louisville, TN
Price includes $549 shipping
Fair Deal
$42,087
- 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
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 58,559
- Stock #:
- MZ192986J
- VIN:
- 1GTP9EEL1MZ192986
New arrival
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
58,559 mi
Mount Vernon, IN
89 mi away
Good Deal
$39,990
- 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:
- Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 121,293
- Stock #:
- 3674)7777
- VIN:
- 3GTU9EET4LG225884
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
121,293 mi
Home delivery from Hampton Falls, NH
Price includes $1,576 shipping
Good Deal
$29,756
- 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:
- Summit White
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 141,004
- Stock #:
- 259020
- VIN:
- 3GTU9EET4MG259020
Sponsored Listing
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
141,004 mi
Princeton, KY
76 mi away
Fair Deal
$32,599
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 $25,952.00 to $85,296.00 with an average price of $33,877.49. 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
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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 Unity, IL?
The average GMC Sierra 1500 AT4 costs about $32,384.86. The average price has decreased by -1% since last year. The 408 for sale near Unity, IL on CarGurus, range from $25,952 to $85,296 in price.
How many GMC Sierra 1500 AT4 vehicles in Unity, IL have no reported accidents or damage?
361 out of 408 for sale near Unity, IL 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.
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