Used GMC Sierra 1500 AT4 for Sale nearPort O Connor, TX
357 vehicles found
Shop with transparent pricing.
Only show listings that include dealer fees- 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:
- Summit White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- 8-Speed Automatic
- Mileage:
- 104,872
- Stock #:
- V26473B
- VIN:
- 1GTP9EED4KZ267508
Sponsored by Finnegan Chevrolet Buick GMC
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
104,872 mi
Rosenberg, TX
86 mi away
Good Deal
$31,349
- 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:
- Sterling Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 67,866
- Stock #:
- GT26075A
- VIN:
- 3GTUUEEL5RG109391
Sponsored Listing
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
67,866 mi
Rosenberg, TX
86 mi away
Fair Deal
$48,665
- 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:
- 81,478
- Stock #:
- PJK6136
- VIN:
- 1GTUUEET4NZ616289
Sponsored Listing
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
81,478 mi
Rosenberg, TX
86 mi away
Fair Deal
$39,594
- 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:
- Dynamic Blue Metallic
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 62,734
- Stock #:
- W261067A
- VIN:
- 1GTUUEET0NZ616161
New arrival
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
62,734 mi
Home delivery from Huntsville, TX
Price includes $243 shipping
Fair Deal
$45,003
- 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:
- 70,251
- Stock #:
- P8791
- VIN:
- 1GTP9EED2MZ387567
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
70,251 mi
Home delivery from San Antonio, TX
Price includes $213 shipping
Fair Deal
$39,938
- 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:
- 12,022
- Stock #:
- 3U1769
- VIN:
- 1GTUUEEL9RZ227380
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
12,022 mi
Home delivery from Lenoir, NC
Price includes $1,066 shipping
Great Deal
$54,045
- Year:
- 2024
- 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:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 24,441
- Stock #:
- 3U1545
- VIN:
- 1GTUUEE80RZ304729
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
24,441 mi
Home delivery from Lenoir, NC
Price includes $1,066 shipping
Great Deal
$49,555
- 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:
- 45,634
- Stock #:
- TLE25881B
- VIN:
- 1GTUUEE85RZ203217
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
45,634 mi
Richwood, TX
76 mi away
Good Deal
$49,106
- Year:
- 2025
- 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 With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 28,244
- Stock #:
- TED81197A
- VIN:
- 3GTUUEE80SG309760
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
28,244 mi
Richwood, TX
76 mi away
Fair Deal
$54,197
- 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:
- 99,993
- Stock #:
- 21994A
- VIN:
- 1GTP9EEL8LZ362355
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
99,993 mi
Home delivery from Eufaula, OK
Price includes $712 shipping
Good Deal
$34,012
- 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:
- Jet Black with Kalahari accents
- Transmission:
- Automatic
- Mileage:
- 36,241
- Stock #:
- 164565A1
- VIN:
- 1GTUUEE84SZ209354
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
36,241 mi
Home delivery from Decatur, TX
Price includes $848 shipping
Fair Deal
$53,650
- 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:
- 143,791
- Stock #:
- T222803
- VIN:
- 3GTP9EEL2KG222803
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
143,791 mi
Home delivery from Brandon, MS
Price includes $471 shipping
Fair Deal
$28,796
- 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:
- Coastal Dune
- Fuel type:
- Gasoline
- Mileage:
- 2,586
- Stock #:
- TG255437
- VIN:
- 3GTUUEELXTG255437
2026 GMC Sierra 1500
AT4 Crew Cab 4WD
2,586 mi
Home delivery from Houston, TX
Price includes $208 shipping
Good Deal
$61,030
- 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:
- 95,910
- Stock #:
- RZ272598X
- VIN:
- 1GTUUEE83RZ272598
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
95,910 mi
Home delivery from San Antonio, TX
Price includes $216 shipping
Great Deal
$37,214
- 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:
- Summit White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- 8-Speed Automatic
- Mileage:
- 104,872
- Stock #:
- V26473B
- VIN:
- 1GTP9EED4KZ267508
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
104,872 mi
Rosenberg, TX
86 mi away
Good Deal
$31,349
- 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:
- 78,979
- Stock #:
- 14879
- VIN:
- 3GTP9EEL9LG226915
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
78,979 mi
Home delivery from Sachse, TX
Price includes $563 shipping
Good Deal
$37,553
- 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 With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 34,021
- Stock #:
- 23014
- VIN:
- 1GTUUEE83PZ210373
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
34,021 mi
Home delivery from Tampa, FL
Price includes $898 shipping
Great Deal
$46,387
- 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:
- Dynamic Blue Metallic
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 32,879
- Stock #:
- 22932
- VIN:
- 1GTPUEEL0NZ638044
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
32,879 mi
Home delivery from Tampa, FL
Price includes $898 shipping
Great Deal
$44,387
- 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:
- White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 91,046
- Stock #:
- 223180
- VIN:
- 3GTP9EEL6LG223180
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
91,046 mi
Home delivery from San Antonio, TX
Price includes $144 shipping
Fair Deal
$36,367
- 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:
- Onyx Black
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 76,246
- Stock #:
- AN1436
- VIN:
- 3GTP9EED7LG283557
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
76,246 mi
Home delivery from Austin, TX
Price includes $218 shipping
Good Deal
$34,412
- 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:
- [G7C] Cardinal Red
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 39,908
- Stock #:
- 382154
- VIN:
- 1GTP9EEL8MZ382154
![[G7C] Cardinal Red 2021 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic](https://static.cargurus.com/images/forsale/2026/08/06/22/52/2021_gmc_sierra_1500-pic-6357760888643398629-1024x768.jpeg?io=true&width=640&height=480&fit=bounds&format=jpg&auto=webp)
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
39,908 mi
Home delivery from Austin, TX
Price includes $155 shipping
Fair Deal
$44,395
- 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:
- 77,859
- Stock #:
- STK444645
- VIN:
- 1GTP9EEL9MZ444645
Price drop
-$1,000
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
77,859 mi
Home delivery from Lafayette, IN
Price includes $994 shipping
Great Deal
$35,494
$34,494
- 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:
- 83,906
- Stock #:
- 206464
- VIN:
- 3GTP9EED9MG206464
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
83,906 mi
Home delivery from Plano, TX
Price includes $318 shipping
Great Deal
$33,313
- 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:
- 45,634
- Stock #:
- TLE25881B
- VIN:
- 1GTUUEE85RZ203217
Sponsored Listing
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
45,634 mi
Richwood, TX
76 mi away
Good Deal
$49,106
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 $24,382.50 to $84,594.95 with an average price of $32,261.76. 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 Port O Connor, TX?
The average GMC Sierra 1500 AT4 costs about $30,841.63. The average price has decreased by -4.7% since last year. The 351 for sale near Port O Connor, TX on CarGurus, range from $24,382 to $84,595 in price.
How many GMC Sierra 1500 AT4 vehicles in Port O Connor, TX have no reported accidents or damage?
315 out of 351 for sale near Port O Connor, TX 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.
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