Used GMC Sierra 1500 AT4 for Sale nearSlidell, LA
442 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:
- 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 by Legacy Buick GMC of Westbank
2026 GMC Sierra 1500
AT4 Crew Cab 4WD
6,460 mi
Harvey, LA
33 mi away
Fair Deal
$62,300
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Summit White
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 4,883
- Stock #:
- 267938A
- VIN:
- 1GTUUEE81TZ148482
Sponsored Listing
2026 GMC Sierra 1500
AT4 Crew Cab 4WD
4,883 mi
Metairie, LA
31 mi away
Good Deal
$61,473
- 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:
- 117,315
- Stock #:
- W0467
- VIN:
- 3GTP9EEL6LG216651
Price drop
-$2,915
Sponsored Listing
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
117,315 mi
Harvey, LA
33 mi away
Great Deal
$33,300
$30,800
- 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:
- 117,315
- Stock #:
- W0467
- VIN:
- 3GTP9EEL6LG216651
Price drop
-$2,915
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
117,315 mi
Harvey, LA
33 mi away
Great Deal
$33,300
$30,800
- 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
- Transmission:
- Automatic
- Mileage:
- 73,988
- Stock #:
- 26235
- VIN:
- 1GTUUEET1NZ519048
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
73,988 mi
Home delivery from Franktown, CO
Price includes $1,261 shipping
Good Deal
$41,211
- 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
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
90,824 mi
Home delivery from Seffner, FL
Price includes $717 shipping
Good Deal
$34,212
- 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:
- Pacific Blue Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black with Kalahari accents
- Transmission:
- Automatic
- Mileage:
- 90,267
- Stock #:
- T123312
- VIN:
- 3GTP9EEL1LG123312
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
90,267 mi
Home delivery from Bradenton, FL
Price includes $1,428 shipping
Great Deal
$35,760
- 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:
- Deep Bronze Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 75,433
- Stock #:
- R60558A
- VIN:
- 1GTUUEEL5RZ232124
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
75,433 mi
Home delivery from Prattville, AL
Free home delivery
Good Deal
$47,489
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Red
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 8,815
- Stock #:
- 28609546
- VIN:
- 3GTUUEE80SG207780
Price drop
-$3,000
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
8,815 mi
Store transfer to Covington, LA
Price includes $149 shipping
Fair Deal
$60,147
$57,147
- 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
- Transmission:
- Automatic
- Mileage:
- 168,472
- Stock #:
- 1787
- VIN:
- 3GTP9EEL3LG110299
New arrival
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
168,472 mi
Home delivery from Birmingham, AL
Price includes $442 shipping
Fair Deal
$28,736
- 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:
- Titanium Rush Metallic
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black with Kalahari accents
- Transmission:
- Automatic
- Mileage:
- 43,772
- Stock #:
- TFA91071A
- VIN:
- 1GTUUEET3NZ577095
Price drop
-$1,026
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
43,772 mi
Harvey, LA
33 mi away
Fair Deal
$48,780
$47,754
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Volcanic Red Tintcoat
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 38,584
- Stock #:
- G9187A
- VIN:
- 3GTUUEE81RG453747
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
38,584 mi
Hammond, LA
44 mi away
Good Deal
$52,716
- 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:
- Desert Sand
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 101,108
- Stock #:
- 12752
- VIN:
- 3GTUUEET8NG542567
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
101,108 mi
Home delivery from Buda, TX
Price includes $723 shipping
Fair Deal
$39,443
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Gray (Thunderstorm Grey)
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 55,513
- Stock #:
- MM353250
- VIN:
- 1GTUUEE87RZ353250
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
55,513 mi
Home delivery from Crete, IL
Price includes $936 shipping
Fair Deal
$51,214
- 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
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 99,865
- Stock #:
- 10214
- VIN:
- 3GTP9EEL6LG390459
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
99,865 mi
Home delivery from Collins, MS
Price includes $147 shipping
Fair Deal
$35,436
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Transmission:
- Automatic
- Mileage:
- 126,000
- Stock #:
- G9668
- VIN:
- 1GTUUEE85PZ119668
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
126,000 mi
Bogalusa, LA
32 mi away
Great Deal
$37,391
- 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 w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 119,638
- Stock #:
- 26C295A
- VIN:
- 3GTU9EET8MG331580
New arrival
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
119,638 mi
Home delivery from Broussard, LA
Price includes $194 shipping
Fair Deal
$33,658
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Sterling Metallic
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 73,697
- Stock #:
- 3-G8107B
- VIN:
- 3GTUUEE85PG167235
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
73,697 mi
Home delivery from Gonzales, LA
Free home delivery
Good Deal
$43,981
- 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
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
88,050 mi
Metairie, LA
32 mi away
Fair Deal
$34,493
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Black
- Fuel type:
- Diesel
- Interior color:
- Black
- Mileage:
- 46,236
- Stock #:
- 161741
- VIN:
- 1GTUUEE81PZ161741
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
46,236 mi
Home delivery from Marietta, GA
Price includes $604 shipping
Great Deal
$48,274
- 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:
- Gray
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 38,846
- Stock #:
- MX5047
- VIN:
- 1GTP9EELXKZ340470
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
38,846 mi
Home delivery from Michigan Center, MI
Price includes $1,582 shipping
Good Deal
$38,761
- 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)
New arrival
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
39,908 mi
Home delivery from Austin, TX
Price includes $476 shipping
Fair Deal
$45,716
- 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 w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 77,390
- Stock #:
- P1953
- VIN:
- 3GTUUEEL7PG116839
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
77,390 mi
Home delivery from Unadilla, GA
Price includes $574 shipping
Fair Deal
$46,268
- 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
- Transmission:
- Automatic
- Mileage:
- 79,883
- Stock #:
- W0446A
- VIN:
- 3GTP9EEL4KG202469
Price drop
-$17,115
Sponsored Listing
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
79,883 mi
Harvey, LA
33 mi away
Fair Deal
$53,200
$36,500
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 $26,691.00 to $85,053.05 with an average price of $33,239.08. 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
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 Slidell, LA?
The average GMC Sierra 1500 AT4 costs about $31,667.29. The average price has decreased by -1.5% since last year. The 442 for sale near Slidell, LA on CarGurus, range from $26,691 to $85,053 in price.
How many GMC Sierra 1500 AT4 vehicles in Slidell, LA have no reported accidents or damage?
405 out of 442 for sale near Slidell, 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 (or EV battery range).
What fuel types are available?
Diesel, Gasoline engines are available.
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