Used GMC Sierra 1500 AT4 for Sale near Millbrook, NY
338 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:
- CARDINAL RED
- Fuel type:
- Gasoline
- Mileage:
- 57,957
- Stock #:
- 29569
- VIN:
- 3GTP9EEL5MG163703
Sponsored by Richard Lucas Chevrolet
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
57,957 mi
Woodbridge Township, NJ
88 mi away
Fair Deal
$42,130
- 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:
- White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 30,768
- Stock #:
- R4559A
- VIN:
- 1GTUUEEL8RZ115380
Sponsored Listing
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
30,768 mi
Keyport, NJ
98 mi away
Fair Deal
$56,624
- 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:
- Red Quartz Tintcoat
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 72,499
- Stock #:
- WP118
- VIN:
- 1GTP9EEL0LZ322979
Sponsored Listing
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
72,499 mi
Keyport, NJ
98 mi away
Fair Deal
$39,754
- 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:
- Onyx Black
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- 8-Speed Automatic
- Mileage:
- 98,319
- Stock #:
- C25148A
- VIN:
- 3GTP9EED1KG101592
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
98,319 mi
Brattleboro, VT
95 mi away
Good Deal
$32,298
- 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:
- Onyx Black
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 29,271
- Stock #:
- M15157
- VIN:
- 1GTUUEEL0PZ272978
Price drop
-$1,142
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
29,271 mi
Sussex, NJ
62 mi away
Great Deal
$51,506
$50,364
- 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:
- CARDINAL RED
- Fuel type:
- Gasoline
- Mileage:
- 57,957
- Stock #:
- 29569
- VIN:
- 3GTP9EEL5MG163703
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
57,957 mi
Woodbridge Township, NJ
88 mi away
Fair Deal
$42,130
- 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
- Transmission:
- Automatic
- Mileage:
- 66,160
- Stock #:
- 26202A
- VIN:
- 1GTP9EEL6MZ429522
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
66,160 mi
Kingston, NY
22 mi away
Great Deal
$35,995
- 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 with Kalahari accents
- Transmission:
- Automatic
- Mileage:
- 24,826
- Stock #:
- 269526A
- VIN:
- 3GTUUEEL0RG408982
New arrival
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
24,826 mi
Hawthorne, NJ
61 mi away
Fair Deal
$57,041
- 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:
- 50,550
- Stock #:
- G26460A
- VIN:
- 3GTP9EEL5MG308741
New arrival
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
50,550 mi
Home delivery from Arundel, ME
Price includes $297 shipping
Fair Deal
$42,931
- 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
- Transmission:
- Automatic
- Mileage:
- 62,883
- Stock #:
- 5017
- VIN:
- 1GTP9EED4MZ345093
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
62,883 mi
Home delivery from Seffner, FL
Price includes $1,122 shipping
Great Deal
$35,606
- 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:
- 66,055
- Stock #:
- G26176A
- VIN:
- 3GTU9EET9MG250975
Price drop
-$900
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
66,055 mi
Brattleboro, VT
95 mi away
Fair Deal
$40,589
$39,689
- 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
$34,961
- 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:
- Sky
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 70,306
- Stock #:
- MX4053
- VIN:
- 1GTP9EEDXMZ341548
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
70,306 mi
Home delivery from Louisville, TN
Price includes $1,247 shipping
Fair Deal
$38,741
- 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 Kalah
- Transmission:
- Automatic
- Mileage:
- 107,437
- Stock #:
- 4423
- VIN:
- 3GTP9EEL3LG110822
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
107,437 mi
Selden, NY
71 mi away
Fair Deal
$32,995
- 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
New arrival
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
53,607 mi
Home delivery from Benton, MO
Price includes $1,356 shipping
Great Deal
$48,856
- 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 $2,020 shipping
Fair Deal
$40,338
- 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 $1,016 shipping
Fair Deal
$36,011
- 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:
- Onyx Black
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 59,662
- Stock #:
- 40019
- VIN:
- 1GTUUEEL8PZ158825
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
59,662 mi
Home delivery from South Bend, IN
Price includes $650 shipping
Fair Deal
$48,602
- 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:
- 86,789
- Stock #:
- 2132
- VIN:
- 1GTP9EEL1MZ198416
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
86,789 mi
Home delivery from Milton, WI
Price includes $781 shipping
Fair Deal
$37,668
- 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
- Fuel type:
- Gasoline
- Interior color:
- Black
- Mileage:
- 37,180
- Stock #:
- A15466B
- VIN:
- 1GTUUEEL0RZ259974
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
37,180 mi
Home delivery from Wahoo, NE
Price includes $1,186 shipping
Good Deal
$54,385
- 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:
- Pacific Blue Metallic
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black with Kalah
- Transmission:
- Automatic
- Mileage:
- 133,209
- Stock #:
- 183724
- VIN:
- 3GTP9EED4LG183724
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
133,209 mi
Bloomingdale, NJ
64 mi away
Fair Deal
$27,987
- 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 With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 33,089
- Stock #:
- T328784
- VIN:
- 3GTU9EET9MG328784
New arrival
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
33,089 mi
Watertown, CT
33 mi away
Fair Deal
$43,997
- 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:
- 23,572
- Stock #:
- M15212
- VIN:
- 1GTUUEEL6PZ269891
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
23,572 mi
Sussex, NJ
62 mi away
Great Deal
$51,574
- Year:
- 2023
- 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:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 34,613
- Stock #:
- TU2936
- VIN:
- 3GTUUEE8XPG165707
New arrival
Sponsored Listing
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
34,613 mi
New Hyde Park, NY
72 mi away
Fair Deal
$50,170
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 $85,501.00 with an average price of $33,812.08. 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
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.
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 Millbrook, NY?
The average GMC Sierra 1500 AT4 costs about $32,467.61. The average price has decreased by -0.9% since last year. The 270 for sale near Millbrook, NY on CarGurus, range from $23,321 to $85,501 in price.
How many GMC Sierra 1500 AT4 vehicles in Millbrook, NY have no reported accidents or damage?
256 out of 270 for sale near Millbrook, NY 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.
GMC Sierra 1500 SLT in Millbrook NYGMC Sierra 1500 Denali in Millbrook NYGMC Sierra 1500 AT4 in Millbrook NYGMC Sierra 1500 Elevation in Millbrook NYGMC Sierra 1500 SLE in Millbrook NYGMC Sierra 1500 Base in Millbrook NYGMC Sierra 1500 Work Truck in Millbrook NYGMC Sierra 1500 SL in Millbrook NYGMC Sierra 1500 SLE1 in Millbrook NYGMC Sierra 1500 SLE2 in Millbrook NY
GMC Sierra 1500 in Millbrook NYOBS 1990s-era Chevy and Ford Trucks for Sale in Millbrook NYUsed GMC Electric Cars for SaleLifted GMC trucks for sale in Millbrook NYWork Trucks for Sale in Millbrook NYAmerican Made Trucks For Sale in Millbrook NYGM Certified Preowned Vehicles for Sale Near Millbrook NYBest Pickup Trucks For Sale in Millbrook NY
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 MillbrookUsed SUVs / Crossovers for Sale with Low Mileage in MillbrookUsed Hatchbacks for Sale with Low Mileage in MillbrookUsed Convertibles for Sale with Low Mileage in MillbrookUsed Vans for Sale with Low Mileage in MillbrookUsed Minivans for Sale with Low Mileage in MillbrookUsed Pickup Trucks for Sale with Low Mileage in MillbrookUsed Coupes for Sale with Low Mileage in MillbrookUsed Wagons for Sale with Low Mileage in Millbrook
