Used GMC Sierra 1500 AT4 for Sale nearKey Largo, FL
240 vehicles found
Shop with transparent pricing.
Only show listings that include dealer fees- 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 W/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 67,243
- Stock #:
- 1176557A
- VIN:
- 1GTP9EED9LZ117220
Sponsored by Bomnin Chevrolet Dadeland
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
67,243 mi
Miami, FL
35 mi away
Good Deal
$34,989
- 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:
- Gray (Dark Sky Metallic)
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 69,673
- Stock #:
- GSL286149A
- VIN:
- 1GTU9EET1LZ278347
Price drop
-$908
Sponsored Listing
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
69,673 mi
Miami, FL
41 mi away
Good Deal
$36,843
$35,935
- 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:
- 68,944
- Stock #:
- PF2618
- VIN:
- 3GTP9EELXLG406078
Sponsored Listing
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
68,944 mi
Homestead, FL
21 mi away
Good Deal
$35,875
- 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 $245 shipping
Great Deal
$42,237
- 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:
- Gray (Dark Sky Metallic)
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 69,673
- Stock #:
- GSL286149A
- VIN:
- 1GTU9EET1LZ278347
Price drop
-$908
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
69,673 mi
Miami, FL
41 mi away
Good Deal
$36,843
$35,935
- 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
- Transmission:
- Automatic
- Mileage:
- 29,785
- Stock #:
- ZC26374
- VIN:
- 1GTUUEE86SZ204768
New arrival
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
29,785 mi
Home delivery from Hicksville, OH
Price includes $1,424 shipping
Fair Deal
$56,819
- 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 $1,443 shipping
Fair Deal
$53,642
- 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:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 4,975
- Stock #:
- 268543A
- VIN:
- 3GTUUEEL4SG380822
New arrival
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
4,975 mi
Home delivery from Daytona Beach, FL
Price includes $900 shipping
Good Deal
$59,760
- 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:
- 45,129
- Stock #:
- TG307494A
- VIN:
- 3GTUUEE83RG229590
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
45,129 mi
Miami, FL
41 mi away
Good Deal
$48,985
- 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 (Satin Steel Metallic)
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black with Kalahari accents
- Transmission:
- Automatic
- Mileage:
- 35,252
- Stock #:
- TG290776B
- VIN:
- 3GTU9EET1MG368423
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
35,252 mi
Miami, FL
41 mi away
Good Deal
$40,785
- 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 With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 32,771
- Stock #:
- T5584A
- VIN:
- 3GTUUEEL9RG397268
New arrival
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
32,771 mi
Home delivery from Tampa, FL
Price includes $336 shipping
Good Deal
$52,307
- 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
- Fuel type:
- Diesel
- Interior color:
- Black
- Mileage:
- 21,941
- Stock #:
- 526721
- VIN:
- 1GTUUEET0NZ526721
New arrival
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
21,941 mi
Home delivery from Marietta, GA
Price includes $981 shipping
Fair Deal
$50,650
- 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:
- White
- Fuel type:
- Gasoline
- Interior color:
- Black
- Mileage:
- 97,698
- Stock #:
- J1337FNG
- VIN:
- 1GTP9EEL0KZ298195
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
97,698 mi
Home delivery from West Palm Beach, FL
Price includes $107 shipping
Good Deal
$33,209
- 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 W/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 67,243
- Stock #:
- 1176557A
- VIN:
- 1GTP9EED9LZ117220
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
67,243 mi
Miami, FL
35 mi away
Good Deal
$34,989
- 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:
- 68,944
- Stock #:
- PF2618
- VIN:
- 3GTP9EELXLG406078
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
68,944 mi
Homestead, FL
21 mi away
Good Deal
$35,875
- 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:
- 9,390
- Stock #:
- 2GT1888
- VIN:
- 1GTUUEE88SZ301888
New arrival
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
9,390 mi
Home delivery from Reidsville, NC
Price includes $1,077 shipping
Fair Deal
$59,971
- 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 $338 shipping
Fair Deal
$33,832
- 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
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
102,366 mi
Home delivery from Michigan Center, MI
Price includes $2,153 shipping
Fair Deal
$31,424
- 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
New arrival
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
46,236 mi
Home delivery from Marietta, GA
Price includes $981 shipping
Good Deal
$48,650
- 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 With Kalahari Accents, Perforated Leathe
- Transmission:
- Automatic
- Mileage:
- 25,085
- Stock #:
- PG223640
- VIN:
- 3GTUUEE8XPG223640
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
25,085 mi
Home delivery from Tampa, FL
Price includes $464 shipping
Fair Deal
$53,102
- 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 Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 91,358
- Stock #:
- T5069A
- VIN:
- 1GTP9EEL8LZ316122
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
91,358 mi
Home delivery from Tampa, FL
Price includes $336 shipping
Fair Deal
$33,775
- 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:
- 49,882
- Stock #:
- T178898
- VIN:
- 1GTUUEE89PZ178898
Price drop
-$1,295
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
49,882 mi
Home delivery from Wesley Chapel, FL
Price includes $302 shipping
Fair Deal
$49,818
$48,522
- 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:
- 75,166
- Stock #:
- 10239
- VIN:
- 1GTUUEE86RZ109184
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
75,166 mi
Home delivery from Johnson Creek, WI
Free home delivery
Fair Deal
$46,478
- 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:
- 45,129
- Stock #:
- TG307494A
- VIN:
- 3GTUUEE83RG229590
Sponsored Listing
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
45,129 mi
Miami, FL
41 mi away
Good Deal
$48,985
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 $28,360.00 to $86,294.40 with an average price of $33,418.46. 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 Key Largo, FL?
The average GMC Sierra 1500 AT4 costs about $31,963.48. The average price has decreased by -1.1% since last year. The 239 for sale near Key Largo, FL on CarGurus, range from $28,360 to $86,294 in price.
How many GMC Sierra 1500 AT4 vehicles in Key Largo, FL have no reported accidents or damage?
214 out of 239 for sale near Key Largo, FL 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 Key Largo FLGMC Sierra 1500 Denali in Key Largo FLGMC Sierra 1500 AT4 in Key Largo FLGMC Sierra 1500 Elevation in Key Largo FLGMC Sierra 1500 SLE in Key Largo FLGMC Sierra 1500 Base in Key Largo FLGMC Sierra 1500 Work Truck in Key Largo FLGMC Sierra 1500 SLE1 in Key Largo FLGMC Sierra 1500 SL in Key Largo FLGMC Sierra 1500 SLE2 in Key Largo FL
GMC Sierra 1500 in Key Largo FLOBS 1990s-era Chevy and Ford Trucks for Sale in Key Largo FLUsed GMC Electric Cars for SaleLifted GMC trucks for sale in Key Largo FLWork Trucks for Sale in Key Largo FLAmerican Made Trucks For Sale in Key Largo FLGM Certified Preowned Vehicles for Sale Near Key Largo FLBest Pickup Trucks For Sale in Key Largo FL
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 Key LargoUsed SUVs / Crossovers for Sale with Low Mileage in Key LargoUsed Hatchbacks for Sale with Low Mileage in Key LargoUsed Convertibles for Sale with Low Mileage in Key LargoUsed Vans for Sale with Low Mileage in Key LargoUsed Minivans for Sale with Low Mileage in Key LargoUsed Pickup Trucks for Sale with Low Mileage in Key LargoUsed Coupes for Sale with Low Mileage in Key LargoUsed Wagons for Sale with Low Mileage in Key Largo
