Used GMC Sierra 1500 AT4 for Sale nearFreeport, ME
285 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:
- Blue Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 22,610
- Stock #:
- PZ130315
- VIN:
- 1GTUUEELXPZ130315
Sponsored by APlus Auto Group
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
22,610 mi
Windham, ME
17 mi away
Good Deal
$53,498
- 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
- Transmission:
- Automatic
- Mileage:
- 40,620
- Stock #:
- T86850
- VIN:
- 1GTUUEEL7RZ286850
Sponsored Listing
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
40,620 mi
Concord, NH
84 mi away
Fair Deal
$54,683
- 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 With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 55,731
- Stock #:
- UP4432AA
- VIN:
- 3GTP9EED5MG378958
Price drop
-$867
Sponsored Listing
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
55,731 mi
Haverhill, MA
91 mi away
Good Deal
$40,285
$39,418
- 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:
- Black (Charcoal)
- Fuel type:
- Gasoline
- Interior color:
- Black
- Mileage:
- 109,291
- Stock #:
- 144
- VIN:
- 3GTP9EED8MG284072
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
109,291 mi
Tilton, NH
77 mi away
Good Deal
$32,744
- 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 $1,661 shipping
Fair Deal
$45,860
- 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 With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 55,731
- Stock #:
- UP4432AA
- VIN:
- 3GTP9EED5MG378958
Price drop
-$867
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
55,731 mi
Haverhill, MA
91 mi away
Good Deal
$40,285
$39,418
- 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:
- 21,612
- Stock #:
- MAA0057
- VIN:
- 3GTUUEELXSG399116
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
21,612 mi
Methuen, MA
96 mi away
Great Deal
$53,485
- 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
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
104,419 mi
Home delivery from Peabody, MA
Price includes $202 shipping
Great Deal
$31,192
- 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/Dark Ash Gray
- Transmission:
- Automatic
- Mileage:
- 98,851
- Stock #:
- P8104
- VIN:
- 1GTP9EEL1LZ201426
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
98,851 mi
Somersworth, NH
58 mi away
Great Deal
$33,574
- 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:
- 45,856
- Stock #:
- 29795
- VIN:
- 1GTU9EET2MZ303449
New arrival
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
45,856 mi
Home delivery from Woodbridge Township, NJ
Price includes $622 shipping
Good Deal
$41,286
- 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:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Mileage:
- 88,890
- Stock #:
- G21923C
- VIN:
- 1GTP9EEL2MZ170916
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
88,890 mi
Rochester, NH
58 mi away
Great Deal
$35,264
- 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 With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 95,351
- Stock #:
- 110983
- VIN:
- 3GTP9EED2LG245380
New arrival
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
95,351 mi
Home delivery from Nashua, NH
Price includes $309 shipping
Good Deal
$33,204
- 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:
- Volcanic Red Tintcoat
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 32,188
- Stock #:
- PA3557
- VIN:
- 1GTUUEEL1RZ265640
Price drop
-$1,589
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
32,188 mi
Amesbury, MA
81 mi away
Good Deal
$54,719
$53,130
- 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 $1,351 shipping
Great Deal
$47,330
- 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:
- Silver
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Transmission:
- Automatic
- Mileage:
- 94,201
- Stock #:
- D542397
- VIN:
- 3GTUUEET9NG542397
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
94,201 mi
Home delivery from Barre, VT
Price includes $180 shipping
Great Deal
$36,674
- 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 w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 58,703
- Stock #:
- G26368A
- VIN:
- 3GTP9EEDXMG468610
Price drop
-$1,000
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
58,703 mi
Arundel, ME
37 mi away
Great Deal
$39,589
$38,589
- 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:
- Blue
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 93,924
- Stock #:
- 11055
- VIN:
- 3GTP9EEL8KG125296
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
93,924 mi
Winslow, ME
51 mi away
Great Deal
$33,290
- 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:
- 28,018
- Stock #:
- BAC14826
- VIN:
- 1GTUUEE85RZ234600
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
28,018 mi
Home delivery from Bridgeport, NY
Price includes $447 shipping
Good Deal
$52,622
- 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:
- 113,929
- Stock #:
- A22084B
- VIN:
- 1GTU9EET9MZ212615
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
113,929 mi
Portsmouth, NH
66 mi away
Great Deal
$29,725
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- White
- Fuel type:
- Diesel
- Interior color:
- Black
- Mileage:
- 54,156
- Stock #:
- 155
- VIN:
- 3GTUUEE80PG170382
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
54,156 mi
Tilton, NH
77 mi away
Great Deal
$46,744
- 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:
- 121,493
- Stock #:
- 3674)7777
- VIN:
- 3GTU9EET4LG225884
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
121,493 mi
Hampton Falls, NH
75 mi away
Great Deal
$26,984
- 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
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 79,126
- Stock #:
- 1363
- VIN:
- 1GTUUEETXNZ525138
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
79,126 mi
Home delivery from Puyallup, WA
Price includes $2,492 shipping
Fair Deal
$42,669
- 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 $2,244 shipping
Good Deal
$59,760
- 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
Sponsored Listing
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
77,180 mi
Arundel, ME
37 mi away
Fair Deal
$37,089
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 $26,318.00 to $86,961.10 with an average price of $33,154.94. 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 Freeport, ME?
The average GMC Sierra 1500 AT4 costs about $31,618.10. The average price has decreased by -1.5% since last year. The 258 for sale near Freeport, ME on CarGurus, range from $26,318 to $86,961 in price.
How many GMC Sierra 1500 AT4 vehicles in Freeport, ME have no reported accidents or damage?
257 out of 258 for sale near Freeport, ME 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
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 Freeport MEGMC Sierra 1500 Denali in Freeport MEGMC Sierra 1500 AT4 in Freeport MEGMC Sierra 1500 Elevation in Freeport MEGMC Sierra 1500 SLE in Freeport MEGMC Sierra 1500 Base in Freeport MEGMC Sierra 1500 Work Truck in Freeport MEGMC Sierra 1500 SLE1 in Freeport MEGMC Sierra 1500 SL in Freeport MEGMC Sierra 1500 SLE2 in Freeport ME
GMC Sierra 1500 in Freeport MEOBS 1990s-era Chevy and Ford Trucks for Sale in Freeport MEUsed GMC Electric Cars for SaleLifted GMC trucks for sale in Freeport MEWork Trucks for Sale in Freeport MEAmerican Made Trucks For Sale in Freeport MEGM Certified Preowned Vehicles for Sale Near Freeport MEBest Pickup Trucks For Sale in Freeport ME
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 FreeportUsed SUVs / Crossovers for Sale with Low Mileage in FreeportUsed Hatchbacks for Sale with Low Mileage in FreeportUsed Convertibles for Sale with Low Mileage in FreeportUsed Vans for Sale with Low Mileage in FreeportUsed Minivans for Sale with Low Mileage in FreeportUsed Pickup Trucks for Sale with Low Mileage in FreeportUsed Coupes for Sale with Low Mileage in FreeportUsed Wagons for Sale with Low Mileage in Freeport
