Used GMC Sierra 1500 AT4 for Sale nearUnityville, PA
336 vehicles found
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Dune
- Combined gas mileage:
- 15 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 5,142
- Stock #:
- 25729
- VIN:
- 1GTUUEEL0TZ241479
Sponsored by Kightlinger Motors, Inc.
2026 GMC Sierra 1500
AT4 Crew Cab 4WD
5,142 mi
Coudersport, PA
85 mi away
Good Deal
$61,323
- 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
- Transmission:
- Automatic
- Mileage:
- 22,156
- Stock #:
- G82343
- VIN:
- 3GTUUEE82RG182343
New arrival
Sponsored Listing
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
22,156 mi
Ephrata, PA
74 mi away
Fair Deal
$56,495
- Year:
- 2025
- 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:
- 15,640
- Stock #:
- N13026A
- VIN:
- 3GTUUEE82SG252316
Sponsored Listing
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
15,640 mi
Washington, NJ
89 mi away
Fair Deal
$59,540
- 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:
- Smokey Quartz Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 51,506
- Stock #:
- 40052
- VIN:
- 1GTP9EELXLZ107867
Preparing for a close up...
Photos coming soon
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
51,506 mi
Home delivery from South Bend, IN
Price includes $505 shipping
Fair Deal
$40,557
- 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:
- Dynamic Blue Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 60,613
- Stock #:
- 22716
- VIN:
- 1GTUUEEL7PZ119174
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
60,613 mi
Home delivery from Tampa, FL
Price includes $1,022 shipping
Great Deal
$43,014
- 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:
- Black
- Transmission:
- Automatic
- Mileage:
- 68,374
- Stock #:
- J13680B
- VIN:
- 1GTP9EEL9LZ319062
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
68,374 mi
State College, PA
74 mi away
Good Deal
$38,240
- 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:
- 71,849
- Stock #:
- D260216XA
- VIN:
- 3GTP9EEL6LG197499
Price drop
-$1,959
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
71,849 mi
Lancaster, PA
81 mi away
Great Deal
$38,359
$36,400
- 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:
- Dynamic Blue Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 22,011
- Stock #:
- U120763
- VIN:
- 1GTUUEEL9PZ120763
New arrival
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
22,011 mi
Manchester, PA
82 mi away
Good Deal
$54,482
- 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:
- Onyx Black
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 23,446
- Stock #:
- A26E16A
- VIN:
- 3GTP9EED6MG256867
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
23,446 mi
Home delivery from Pomeroy, OH
Price includes $984 shipping
Fair Deal
$47,172
- 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:
- Cardinal Red
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 48,511
- Stock #:
- MZ235767TT
- VIN:
- 1GTP9EED7MZ235767
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
48,511 mi
Tunkhannock, PA
35 mi away
Fair Deal
$42,500
- 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:
- Onyx Black
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 85,404
- Stock #:
- LG121721
- VIN:
- 3GTP9EEL8LG121721
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
85,404 mi
Harrisburg, PA
70 mi away
Great Deal
$34,978
- 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
- Transmission:
- Automatic
- Mileage:
- 116,806
- Stock #:
- 9578711
- VIN:
- 1GTP9EEL6KZ131890
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
116,806 mi
Palmyra, PA
64 mi away
Good Deal
$32,454
- 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:
- Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 72,546
- Stock #:
- TP5046B
- VIN:
- 1GTUUEET2NZ567416
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
72,546 mi
Selinsgrove, PA
33 mi away
Good Deal
$41,790
- 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:
- Black
- Transmission:
- Automatic
- Mileage:
- 75,071
- Stock #:
- ZG2448A
- VIN:
- 1GTP9EEL4LZ291686
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
75,071 mi
Hazleton, PA
33 mi away
Fair Deal
$39,990
- 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:
- Pacific Blue Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 73,377
- Stock #:
- W1732A
- VIN:
- 1GTP9EED2KZ235382
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
73,377 mi
Home delivery from Wabash, IN
Price includes $849 shipping
Fair Deal
$36,148
- 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:
- 60,063
- Stock #:
- V602531
- VIN:
- 3GTUUEE83PG237377
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
60,063 mi
Doylestown, PA
97 mi away
Great Deal
$43,933
- 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:
- Gray
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 110,270
- Stock #:
- G1071A
- VIN:
- 1GTP9EED1KZ401424
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
110,270 mi
Home delivery from Butler, PA
Price includes $720 shipping
Fair Deal
$31,710
- 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:
- Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- TWO/TONE
- Transmission:
- Automatic
- Mileage:
- 90,824
- Stock #:
- 2026-498
- VIN:
- 3GTU9EET6MG365839
New arrival
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
90,824 mi
Home delivery from Seffner, FL
Price includes $1,460 shipping
Good Deal
$34,954
- 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
- Transmission:
- Automatic
- Mileage:
- 22,156
- Stock #:
- G82343
- VIN:
- 3GTUUEE82RG182343
New arrival
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
22,156 mi
Ephrata, PA
74 mi away
Fair Deal
$56,495
- Year:
- 2019
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 83,359
- Stock #:
- BAC14827
- VIN:
- 1GTP9EEL3KZ397478
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
83,359 mi
Home delivery from Bridgeport, NY
Price includes $200 shipping
Fair Deal
$37,370
- 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:
- Pacific Blue Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- 8-Speed Automatic
- Mileage:
- 102,366
- Stock #:
- LD0697
- VIN:
- 1GTP9EED4KZ174603
Price drop
-$944
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
102,366 mi
Home delivery from Michigan Center, MI
Price includes $731 shipping
Great Deal
$30,946
$30,002
- 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:
- 32,387
- Stock #:
- TZ343126A
- VIN:
- 1GTUUEEL7PZ227150
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
32,387 mi
Budd Lake, NJ
95 mi away
Great Deal
$49,490
- 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:
- Black
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 44,214
- Stock #:
- G26-82A
- VIN:
- 3GTUUEEL9SG224422
Price drop
-$1,000
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
44,214 mi
Elmira, NY
65 mi away
Great Deal
$50,174
$49,174
- 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
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 21,936
- Stock #:
- G26463A
- VIN:
- 3GTUUEELXRG314737
Sponsored Listing
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
21,936 mi
Bartonsville, PA
67 mi away
Fair Deal
$56,692
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 $22,920.00 to $87,124.00 with an average price of $33,401.89. 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 Unityville, PA?
The average GMC Sierra 1500 AT4 costs about $31,994.95. The average price has decreased by -1% since last year. The 289 for sale near Unityville, PA on CarGurus, range from $22,920 to $87,124 in price.
How many GMC Sierra 1500 AT4 vehicles in Unityville, PA have no reported accidents or damage?
245 out of 289 for sale near Unityville, PA 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
Cherise Threewitt
2027 GMC Sierra 1500 Pricing, Specs, and Release Date
GMC has redesigned the Sierra 1500 full-size pickup truck for 2027, with new styling, powertrains, and safety and convenience features.
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
Car Deals with 0% APR in July 2026
Our experts have tracked down the latest 0% APR car deals, as well as examined the pros and cons of interest-free car loans versus other financing options.
GMC Sierra 1500 SLT in Unityville PAGMC Sierra 1500 Denali in Unityville PAGMC Sierra 1500 AT4 in Unityville PAGMC Sierra 1500 Elevation in Unityville PAGMC Sierra 1500 SLE in Unityville PAGMC Sierra 1500 Base in Unityville PAGMC Sierra 1500 Work Truck in Unityville PAGMC Sierra 1500 SLE1 in Unityville PAGMC Sierra 1500 SL in Unityville PAGMC Sierra 1500 SLE2 in Unityville PA
GMC Sierra 1500 in Unityville PAOBS 1990s-era Chevy and Ford Trucks for Sale in Unityville PAUsed GMC Electric Cars for SaleLifted GMC trucks for sale in Unityville PAWork Trucks for Sale in Unityville PAAmerican Made Trucks For Sale in Unityville PAGM Certified Preowned Vehicles for Sale Near Unityville PABest Pickup Trucks For Sale in Unityville PA
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 UnityvilleUsed SUVs / Crossovers for Sale with Low Mileage in UnityvilleUsed Hatchbacks for Sale with Low Mileage in UnityvilleUsed Convertibles for Sale with Low Mileage in UnityvilleUsed Vans for Sale with Low Mileage in UnityvilleUsed Minivans for Sale with Low Mileage in UnityvilleUsed Pickup Trucks for Sale with Low Mileage in UnityvilleUsed Coupes for Sale with Low Mileage in UnityvilleUsed Wagons for Sale with Low Mileage in Unityville
