Used GMC Sierra 1500 AT4 for Sale near Lockport, LA
409 vehicles found
Shop with transparent pricing.
Only show listings that include dealer fees- 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:
- 25,272
- Stock #:
- 3-G92023A
- VIN:
- 3GTUUEEL2SG324135
Sponsored by Ross Downing GMC Gonzales
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
25,272 mi
Gonzales, LA
42 mi away
Good Deal
$55,471
- 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:
- 88,050
- Stock #:
- K305867
- VIN:
- 3GTP9EED4KG305867
Price drop
-$1,000
Sponsored Listing
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
88,050 mi
Metairie, LA
29 mi away
Good Deal
$33,394
$32,394
- 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:
- 33,600
- Stock #:
- PM6615
- VIN:
- 1GTUUEELXSZ279476
Sponsored Listing
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
33,600 mi
New Orleans, LA
32 mi away
Fair Deal
$55,127
- 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 $538 shipping
Great Deal
$45,027
- 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:
- 117,374
- Stock #:
- W0467
- VIN:
- 3GTP9EEL6LG216651
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
117,374 mi
Harvey, LA
30 mi away
Great Deal
$29,900
- 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 $538 shipping
Great Deal
$38,517
- 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
- Transmission:
- Automatic
- Mileage:
- 47,842
- Stock #:
- 22943
- VIN:
- 1GTUUEE89PZ189030
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
47,842 mi
Home delivery from Tampa, FL
Price includes $527 shipping
Great Deal
$47,016
- 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
- Transmission:
- Automatic
- Mileage:
- 3,024
- Stock #:
- 22791
- VIN:
- 3GTUUEEL7RG217494
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
3,024 mi
Home delivery from Tampa, FL
Price includes $527 shipping
Great Deal
$54,019
- 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 w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 90,118
- Stock #:
- 2260728A
- VIN:
- 3GTP9EEL0MG128468
Price drop
-$1,000
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
90,118 mi
Home delivery from Lafayette, LA
Price includes $146 shipping
Great Deal
$36,509
$35,508
- 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:
- 101,067
- Stock #:
- 121380
- VIN:
- 3GTUUEEL9PG121380
New arrival
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
101,067 mi
Home delivery from Houston, TX
Price includes $442 shipping
Great Deal
$38,558
- 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 $1,184 shipping
Great Deal
$58,209
- 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
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 101,092
- Stock #:
- NL2138
- VIN:
- 3GTU9EET2MG406628
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
101,092 mi
Home delivery from Mandeville, LA
Free home delivery
Great Deal
$31,696
- 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:
- 88,050
- Stock #:
- K305867
- VIN:
- 3GTP9EED4KG305867
Price drop
-$1,000
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
88,050 mi
Metairie, LA
29 mi away
Good Deal
$33,394
$32,394
- 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 (Ebony Twilight Metallic)
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 72,442
- Stock #:
- 09890A
- VIN:
- 3GTU9EETXMG459593
New arrival
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
72,442 mi
Metairie, LA
27 mi away
Great Deal
$36,377
- 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
- Transmission:
- Automatic
- Mileage:
- 55,950
- Stock #:
- ZC26391
- VIN:
- 1GTUUEEL4PZ152133
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
55,950 mi
Home delivery from Hicksville, OH
Price includes $1,082 shipping
Great Deal
$46,022
- 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:
- Thunderstorm Gray
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 32,986
- Stock #:
- DC26185
- VIN:
- 1GTUUEEL1RZ273866
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
32,986 mi
Home delivery from Delphos, OH
Price includes $1,056 shipping
Fair Deal
$53,781
- 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:
- Summit White
- Fuel type:
- Gasoline
- Interior color:
- Jet Black w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 167,774
- Stock #:
- 246468
- VIN:
- 3GTP9EEL2KG246468
Price drop
-$1,495
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
167,774 mi
Home delivery from Jacksonville, FL
Price includes $534 shipping
Fair Deal
$27,519
$26,024
- 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:
- 74,205
- Stock #:
- 263120A
- VIN:
- 1GTUUEE86PZ174047
New arrival
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
74,205 mi
Houma, LA
14 mi away
Good Deal
$43,471
- 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:
- 24,115
- Stock #:
- 26R0210A
- VIN:
- 3GTUUEEL1RG412619
Price drop
-$5,000
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
24,115 mi
Gonzales, LA
47 mi away
Good Deal
$57,469
$52,469
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Titanium Rush Metall
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 54,912
- Stock #:
- 119878
- VIN:
- 3GTUUEE81RG119878
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
54,912 mi
Home delivery from Burlington, NC
Price includes $1,162 shipping
Fair Deal
$51,956
- 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:
- 7,142
- Stock #:
- Y1509
- VIN:
- 1GTUUEEL4SZ265332
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
7,142 mi
Home delivery from Kernersville, NC
Price includes $1,502 shipping
Fair Deal
$61,336
- 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 $435 shipping
Fair Deal
$45,675
- 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:
- Black
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 62,533
- Stock #:
- 136594H
- VIN:
- 3GTP9EED4KG136594
New arrival
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
62,533 mi
Home delivery from Hollywood, FL
Price includes $677 shipping
Great Deal
$30,665
- 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 with Kalahari accents
- Transmission:
- Automatic
- Mileage:
- 6,460
- Stock #:
- 26W4753A
- VIN:
- 3GTUUEE87TG180031
Sponsored Listing
2026 GMC Sierra 1500
AT4 Crew Cab 4WD
6,460 mi
Harvey, LA
30 mi away
Good Deal
$60,200
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 $23,369.00 to $84,914.00 with an average price of $33,044.26. 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 Lockport, LA?
The average GMC Sierra 1500 AT4 costs about $31,297.85. The average price has decreased by -2.6% since last year. The 404 for sale near Lockport, LA on CarGurus, range from $23,369 to $84,914 in price.
How many GMC Sierra 1500 AT4 vehicles in Lockport, LA have no reported accidents or damage?
349 out of 404 for sale near Lockport, LA 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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