Used GMC Sierra 1500 AT4 for Sale nearLong Key, FL
216 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:
- Summit White
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 92,810
- Stock #:
- LG284929
- VIN:
- 3GTP9EED1LG284929
Price drop
-$1,000
Sponsored by Mercedes-Benz of Ft. Lauderdale
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
92,810 mi
Ft. Lauderdale, FL
97 mi away
Great Deal
$30,999
$29,999
- 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
Sponsored Listing
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
69,673 mi
Miami, FL
75 mi away
Fair Deal
$36,843
- 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:
- 15,486
- Stock #:
- P199275
- VIN:
- 1GTUUEE80SZ199275
Sponsored Listing
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
15,486 mi
Pembroke Pines, FL
89 mi away
Fair Deal
$61,498
- 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:
- 48,599
- Stock #:
- RZ242449
- VIN:
- 1GTUUEE81RZ242449
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
48,599 mi
Home delivery from Nokomis, FL
Price includes $285 shipping
Good Deal
$50,932
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Exterior color:
- Black
- Interior color:
- Black
- Mileage:
- 42,529
- Stock #:
- 237347
- VIN:
- 1GTUUCE86RZ237347
New arrival
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
42,529 mi
Home delivery from Marietta, GA
Price includes $1,008 shipping
Fair Deal
$51,677
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Blue Metallic
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 93,233
- Stock #:
- T3531A
- VIN:
- 3GTUUEE87RG271356
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
93,233 mi
Home delivery from Tampa, FL
Price includes $354 shipping
Great Deal
$39,814
- 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:
- Summit White
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 92,810
- Stock #:
- LG284929
- VIN:
- 3GTP9EED1LG284929
Price drop
-$1,000
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
92,810 mi
Ft. Lauderdale, FL
97 mi away
Great Deal
$30,999
$29,999
- 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
Price drop
-$1,000
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
97,698 mi
Home delivery from West Palm Beach, FL
Price includes $141 shipping
Great Deal
$34,486
$33,486
- 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:
- 33,512
- Stock #:
- T4543A
- VIN:
- 1GTUUEE80PZ317381
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
33,512 mi
Home delivery from Tampa, FL
Price includes $354 shipping
Good Deal
$49,747
- 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
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 93,245
- Stock #:
- 170072
- VIN:
- 1GTP9EED1KZ170072
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
93,245 mi
Home delivery from Frederick, CO
Price includes $1,756 shipping
Good Deal
$32,848
- 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 $1,451 shipping
Good Deal
$54,650
- 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
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
69,673 mi
Miami, FL
75 mi away
Fair Deal
$36,843
- 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 $257 shipping
Great Deal
$42,749
- 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:
- Onyx Black
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents, Perforated Leathe
- Transmission:
- Automatic
- Mileage:
- 21,992
- Stock #:
- NZ550407
- VIN:
- 1GTPUEEL8NZ550407
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
21,992 mi
Home delivery from Tampa, FL
Price includes $488 shipping
Good Deal
$51,726
- 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:
- Summit White
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 74,545
- Stock #:
- J3629
- VIN:
- 1GTPUEEL4NZ511846
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
74,545 mi
Miami, FL
75 mi away
Good Deal
$44,338
- 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:
- 26,459
- Stock #:
- T12617
- VIN:
- 3GTUUEEL6RG102000
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
26,459 mi
Home delivery from Buda, TX
Price includes $1,656 shipping
Good Deal
$54,376
- 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:
- 42,500
- Stock #:
- 14945A
- VIN:
- 3GTUUEE88PG216864
New arrival
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
42,500 mi
Home delivery from Lehi, UT
Price includes $2,088 shipping
Fair Deal
$52,161
- 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:
- White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 48,891
- Stock #:
- 70067784
- VIN:
- 1GTUUEEL1RZ101692
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
48,891 mi
Store transfer to Miami, FL
Price includes $749 shipping
Fair Deal
$53,747
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 51,710
- Stock #:
- 28353738
- VIN:
- 1GTUUEE88SZ138899
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
51,710 mi
Store transfer to Miami, FL
Price includes $1,099 shipping
Fair Deal
$54,097
- 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:
- Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 121,293
- Stock #:
- 3674)7777
- VIN:
- 3GTU9EET4LG225884
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
121,293 mi
Home delivery from Hampton Falls, NH
Price includes $2,058 shipping
Good Deal
$30,237
- 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
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
51,506 mi
Home delivery from South Bend, IN
Price includes $1,201 shipping
Fair Deal
$41,253
- 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:
- Onyx Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 106,146
- Stock #:
- F238492
- VIN:
- 1GTU9EET8LZ238492
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
106,146 mi
Home delivery from Fishers, IN
Price includes $1,361 shipping
Fair Deal
$32,612
- 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:
- 10-Speed Automatic
- Mileage:
- 82,156
- Stock #:
- 129537
- VIN:
- 1GTP9EEL0LZ129537
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
82,156 mi
Home delivery from Denver, CO
Price includes $2,089 shipping
Fair Deal
$36,984
- 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
- Mileage:
- 138,020
- Stock #:
- MI119801
- VIN:
- 3GTP9EEL9KG119801
Sponsored Listing
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
138,020 mi
Hollywood, FL
91 mi away
Good Deal
$28,694
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 $23,059.25 to $85,114.00 with an average price of $33,690.55. 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 Long Key, FL?
The average GMC Sierra 1500 AT4 costs about $32,119.81. The average price has decreased by -0.8% since last year. The 204 for sale near Long Key, FL on CarGurus, range from $23,059 to $85,114 in price.
How many GMC Sierra 1500 AT4 vehicles in Long Key, FL have no reported accidents or damage?
178 out of 204 for sale near Long Key, 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
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.
CarGurus Editorial Team
Best Truck Lease Deals in July 2026
Leasing a truck can be a great way to get into one of the latest models, with the best technology, at a more affordable monthly price. Here are the best deals we've found this month.
CarGurus Editorial Team
Best Car Deals in July 2026
In the market for a new or used car this year? Whether you’re looking to buy or lease, we’ve collated a list of the best car deals available this month.
GMC Sierra 1500 SLT in Long Key FLGMC Sierra 1500 Denali in Long Key FLGMC Sierra 1500 AT4 in Long Key FLGMC Sierra 1500 Elevation in Long Key FLGMC Sierra 1500 SLE in Long Key FLGMC Sierra 1500 Base in Long Key FLGMC Sierra 1500 Work Truck in Long Key FLGMC Sierra 1500 SLE1 in Long Key FLGMC Sierra 1500 SL in Long Key FLGMC Sierra 1500 SLE2 in Long Key FL
GMC Sierra 1500 in Long Key FLOBS 1990s-era Chevy and Ford Trucks for Sale in Long Key FLUsed GMC Electric Cars for SaleLifted GMC trucks for sale in Long Key FLWork Trucks for Sale in Long Key FLAmerican Made Trucks For Sale in Long Key FLGM Certified Preowned Vehicles for Sale Near Long Key FLBest Pickup Trucks For Sale in Long Key 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 Long KeyUsed SUVs / Crossovers for Sale with Low Mileage in Long KeyUsed Hatchbacks for Sale with Low Mileage in Long KeyUsed Convertibles for Sale with Low Mileage in Long KeyUsed Vans for Sale with Low Mileage in Long KeyUsed Minivans for Sale with Low Mileage in Long KeyUsed Pickup Trucks for Sale with Low Mileage in Long KeyUsed Coupes for Sale with Low Mileage in Long KeyUsed Wagons for Sale with Low Mileage in Long Key
