Used GMC Sierra 1500 AT4 for Sale nearCobalt, CT
308 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:
- White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- 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
42 mi away
Fair Deal
$48,684
- 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
- Transmission:
- Automatic
- Mileage:
- 62,922
- Stock #:
- 52900AQ
- VIN:
- 3GTUUEELXPG120724
Sponsored Listing
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
62,922 mi
Waterbury, CT
23 mi away
Good Deal
$44,923
- Year:
- 2025
- 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:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 24,296
- Stock #:
- 7835P
- VIN:
- 1GTUUEE88SZ194423
Sponsored Listing
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
24,296 mi
Mystic, CT
35 mi away
Fair Deal
$56,574
- Year:
- 2024
- 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:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 28,235
- Stock #:
- BAC14826
- VIN:
- 1GTUUEE85RZ234600
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
28,235 mi
Home delivery from Bridgeport, NY
Price includes $308 shipping
Fair Deal
$52,482
- Year:
- 2022
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Blue
- Fuel type:
- Gasoline
- Interior color:
- Black
- Mileage:
- 34,801
- Stock #:
- 599329
- VIN:
- 1GTUUCED6NZ599329
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
34,801 mi
Home delivery from Marietta, GA
Price includes $1,250 shipping
Fair Deal
$50,918
- 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:
- 77,180
- Stock #:
- G26458A
- VIN:
- 1GTU9EET0MZ209201
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
77,180 mi
Home delivery from Arundel, ME
Price includes $249 shipping
Fair Deal
$37,338
- 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
New arrival
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
39,768 mi
Brookfield, CT
45 mi away
Good Deal
$47,986
- 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
21 mi away
Good Deal
$43,938
- 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:
- Cardinal Red
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 49,755
- Stock #:
- CC2810B
- VIN:
- 1GTU9EET4MZ326988
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
49,755 mi
Bristol, CT
19 mi away
Great Deal
$36,996
- 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, Perforated Leathe
- Transmission:
- Automatic
- Mileage:
- 76,100
- Stock #:
- G3767A
- VIN:
- 3GTP9EEL7LG451365
Price drop
-$1,001
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
76,100 mi
Home delivery from Penns Grove, NJ
Free home delivery
Great Deal
$35,933
$34,932
- 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:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 28,482
- Stock #:
- MX4851
- VIN:
- 1GTP9EEL1MZ241989
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
28,482 mi
Home delivery from Louisville, TN
Price includes $1,323 shipping
Fair Deal
$45,022
- 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:
- Black
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 104,419
- Stock #:
- 234083
- VIN:
- 3GTP9EED7LG234083
Price drop
-$2,309
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
104,419 mi
Home delivery from Peabody, MA
Price includes $210 shipping
Great Deal
$31,200
$29,590
- 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
- Transmission:
- Automatic
- Mileage:
- 56,671
- Stock #:
- X155626
- VIN:
- 1GTUUEEL9PZ155626
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
56,671 mi
Home delivery from Addison, TX
Price includes $1,455 shipping
Fair Deal
$47,021
- 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 $1,942 shipping
Good Deal
$59,458
- 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
11 mi away
Good Deal
$58,399
- 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 $1,141 shipping
Great Deal
$46,630
- 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:
- Onyx Black
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 87,598
- Stock #:
- STK621382
- VIN:
- 1GTPUEEL1NZ621382
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
87,598 mi
Home delivery from Noblesville, IN
Price includes $713 shipping
Good Deal
$40,213
- 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:
- 37,096
- Stock #:
- X14987
- VIN:
- 1GTUUEE87PZ219187
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
37,096 mi
Torrington, CT
32 mi away
Fair Deal
$49,476
- 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
23 mi away
Great Deal
$30,989
- 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 (DARK SKY METALLIC)
- Fuel type:
- Diesel
- Mileage:
- 45,844
- Stock #:
- 29795
- VIN:
- 1GTU9EET2MZ303449
New arrival
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
45,844 mi
Home delivery from Woodbridge Township, NJ
Price includes $226 shipping
Good Deal
$40,890
- 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:
- White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 49,094
- Stock #:
- 70155606
- VIN:
- 1GTUUEEL9PZ100660
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
49,094 mi
Store transfer to Hartford, CT
Price includes $399 shipping
Fair Deal
$49,397
- 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
19 mi away
Great Deal
$53,525
- 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 $1,141 shipping
Good Deal
$40,120
- 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 With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 41,810
- Stock #:
- 26-679A
- VIN:
- 3GTUUEEL0PG307518
Sponsored Listing
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
41,810 mi
Torrington, CT
34 mi away
Fair Deal
$50,276
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 $86,655.85 with an average price of $33,137.66. 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 Cobalt, CT?
The average GMC Sierra 1500 AT4 costs about $31,601.65. The average price has decreased by -1.5% since last year. The 308 for sale near Cobalt, CT on CarGurus, range from $21,400 to $86,656 in price.
How many GMC Sierra 1500 AT4 vehicles in Cobalt, CT have no reported accidents or damage?
291 out of 308 for sale near Cobalt, CT 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.
*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 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.
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.
GMC Sierra 1500 SLT in Cobalt CTGMC Sierra 1500 Denali in Cobalt CTGMC Sierra 1500 AT4 in Cobalt CTGMC Sierra 1500 Elevation in Cobalt CTGMC Sierra 1500 SLE in Cobalt CTGMC Sierra 1500 Base in Cobalt CTGMC Sierra 1500 Work Truck in Cobalt CTGMC Sierra 1500 SLE1 in Cobalt CTGMC Sierra 1500 SL in Cobalt CTGMC Sierra 1500 SLE2 in Cobalt CT
GMC Sierra 1500 in Cobalt CTOBS 1990s-era Chevy and Ford Trucks for Sale in Cobalt CTUsed GMC Electric Cars for SaleLifted GMC trucks for sale in Cobalt CTWork Trucks for Sale in Cobalt CTAmerican Made Trucks For Sale in Cobalt CTGM Certified Preowned Vehicles for Sale Near Cobalt CTBest Pickup Trucks For Sale in Cobalt CT
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 CobaltUsed SUVs / Crossovers for Sale with Low Mileage in CobaltUsed Hatchbacks for Sale with Low Mileage in CobaltUsed Convertibles for Sale with Low Mileage in CobaltUsed Vans for Sale with Low Mileage in CobaltUsed Minivans for Sale with Low Mileage in CobaltUsed Pickup Trucks for Sale with Low Mileage in CobaltUsed Coupes for Sale with Low Mileage in CobaltUsed Wagons for Sale with Low Mileage in Cobalt
