Used GMC Sierra 1500 AT4 for Sale near Connecticut
304 vehicles found
Shop with transparent pricing.
Only show listings that include dealer fees- 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 with Kalahari accents, Perforated leathe
- Transmission:
- Automatic
- Mileage:
- 64,521
- Stock #:
- PV26087A
- VIN:
- 1GTUUEEL2PZ240873
Sponsored by Bob Pion Buick GMC
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
64,521 mi
Chicopee, MA
28 mi away
Fair Deal
$49,343
- 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:
- White
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 153,210
- Stock #:
- P252842
- VIN:
- 1GTP9EED5LZ252842
Sponsored Listing
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
153,210 mi
Charlton, MA
47 mi away
Good Deal
$25,700
- 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
- Transmission:
- Automatic
- Mileage:
- 38,583
- Stock #:
- 7437P
- VIN:
- 1GTUUEEL6PZ251942
Sponsored Listing
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
38,583 mi
Mystic, CT
47 mi away
Great Deal
$46,974
- 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 $1,149 shipping
Great Deal
$39,128
- 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:
- White
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black with Kalah
- Transmission:
- Automatic
- Mileage:
- 103,928
- Stock #:
- 359144
- VIN:
- 3GTP9EEL0MG359144
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
103,928 mi
East Windsor, CT
9 mi away
Great Deal
$30,989
- 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:
- Onyx Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 52,170
- Stock #:
- 11995
- VIN:
- 1GTUUEET7NZ614603
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
52,170 mi
Branford, CT
33 mi away
Good Deal
$43,938
- 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 $1,932 shipping
Good Deal
$58,957
- Year:
- 2019
- 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
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 66,645
- Stock #:
- U177B
- VIN:
- 1GTP9EEL6KZ311838
New arrival
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
66,645 mi
Home delivery from Oswego, NY
Price includes $448 shipping
Fair Deal
$36,508
- 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
- Transmission:
- Automatic
- Mileage:
- 47,842
- Stock #:
- 22943
- VIN:
- 1GTUUEE89PZ189030
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
47,842 mi
Home delivery from Tampa, FL
Price includes $1,150 shipping
Good Deal
$47,639
- Year:
- 2024
- 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:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 45,783
- Stock #:
- T9552C
- VIN:
- 3GTUUEE8XRG168951
Price drop
-$5,587
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
45,783 mi
Vernon Rockville, CT
12 mi away
Great Deal
$53,831
$48,244
- 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 $1,150 shipping
Great Deal
$55,142
- 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:
- Titanium Rush Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 22,005
- Stock #:
- GF120124
- VIN:
- 3GTUUEEL4RG120124
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
22,005 mi
Home delivery from Gorham, NH
Price includes $382 shipping
Fair Deal
$55,171
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 39,768
- Stock #:
- Z4782
- VIN:
- 1GTUUEE87PZ290342
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
39,768 mi
Brookfield, CT
43 mi away
Good Deal
$47,986
- 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 $1,149 shipping
Great Deal
$45,638
- 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
Home delivery from Chantilly, VA
Price includes $642 shipping
Fair Deal
$30,632
- 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:
- White
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 153,210
- Stock #:
- P252842
- VIN:
- 1GTP9EED5LZ252842
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
153,210 mi
Charlton, MA
47 mi away
Good Deal
$25,700
- 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:
- Brown
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 30,660
- Stock #:
- 4438A
- VIN:
- 1GTUUEEL6RZ199408
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
30,660 mi
Home delivery from Archbald, PA
Price includes $185 shipping
Fair Deal
$55,675
- 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:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 37,793
- Stock #:
- B26081911T1
- VIN:
- 1GTUUEEL3SZ129726
New arrival
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
37,793 mi
Home delivery from Rochester, NY
Price includes $264 shipping
Fair Deal
$53,888
- 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:
- Volcanic Red Tintcoat
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 55,950
- Stock #:
- ZC26391
- VIN:
- 1GTUUEEL4PZ152133
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
55,950 mi
Home delivery from Hicksville, OH
Price includes $779 shipping
Fair Deal
$46,174
- 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:
- 6,376
- Stock #:
- G13576A
- VIN:
- 3GTUUEEL6SG118123
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
6,376 mi
Berlin, CT
10 mi away
Good Deal
$57,799
- 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 $1,114 shipping
Fair Deal
$60,948
- 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:
- Summit White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 67,790
- Stock #:
- G26230A
- VIN:
- 3GTP9EEL2LG120404
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
67,790 mi
New Britain, CT
9 mi away
Fair Deal
$39,701
- 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
- Transmission:
- Automatic
- Mileage:
- 12,732
- Stock #:
- CC3314
- VIN:
- 1GTUUEELXRZ227856
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
12,732 mi
Bristol, CT
13 mi away
Great Deal
$53,525
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Blue Metallic
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 40,002
- Stock #:
- Z4242
- VIN:
- 1GTUUEE89RZ198622
Sponsored Listing
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
40,002 mi
Brookfield, CT
43 mi away
Good Deal
$49,714
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 $21,400.00 to $86,650.30 with an average price of $33,140.25. 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 Connecticut?
The average GMC Sierra 1500 AT4 costs about $31,384.50. The average price has decreased by -2.2% since last year. The 304 for sale near Connecticut on CarGurus, range from $21,400 to $86,650 in price.
How many GMC Sierra 1500 AT4 vehicles in Connecticut have no reported accidents or damage?
292 out of 304 for sale near Connecticut 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 Cars for New Parents
Discover the best family cars for first-time parents in 2025, accounting for door access, car seat compatibility, and other real-world considerations new parents will want to keep in mind.
CarGurus Editorial Team
Best Truck Lease Deals in August 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 August 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.
GMC Sierra 1500 SLT in ConnecticutGMC Sierra 1500 Denali in ConnecticutGMC Sierra 1500 AT4 in ConnecticutGMC Sierra 1500 Elevation in ConnecticutGMC Sierra 1500 SLE in ConnecticutGMC Sierra 1500 Base in ConnecticutGMC Sierra 1500 Work Truck in ConnecticutGMC Sierra 1500 SLE1 in ConnecticutGMC Sierra 1500 SL in ConnecticutGMC Sierra 1500 SLE2 in Connecticut
GMC Sierra 1500 in ConnecticutOBS 1990s-era Chevy and Ford Trucks for Sale in ConnecticutUsed GMC Electric Cars for SaleLifted GMC trucks for sale in ConnecticutWork Trucks for Sale in ConnecticutAmerican Made Trucks For Sale in ConnecticutGM Certified Preowned Vehicles for Sale Near ConnecticutBest Pickup Trucks For Sale in Connecticut
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 ConnecticutUsed SUVs / Crossovers for Sale with Low Mileage in ConnecticutUsed Hatchbacks for Sale with Low Mileage in ConnecticutUsed Convertibles for Sale with Low Mileage in ConnecticutUsed Vans for Sale with Low Mileage in ConnecticutUsed Minivans for Sale with Low Mileage in ConnecticutUsed Pickup Trucks for Sale with Low Mileage in ConnecticutUsed Coupes for Sale with Low Mileage in ConnecticutUsed Wagons for Sale with Low Mileage in Connecticut
