Used GMC Sierra 1500 AT4 for Sale nearFrederick, CO
309 vehicles found
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2023
- 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
- Transmission:
- Automatic
- Mileage:
- 42,825
- Stock #:
- 26T797A
- VIN:
- 3GTUUEE89PG139440
Sponsored by Bozarth Chevrolet
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
42,825 mi
Lone Tree, CO
37 mi away
Fair Deal
$49,991
- 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:
- 38,248
- Stock #:
- SP8527
- VIN:
- 1GTUUEEL0SZ312985
New arrival
Sponsored Listing
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
38,248 mi
Thornton, CO
16 mi away
Good Deal
$53,694
- 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
- Transmission:
- 10-Speed Automatic
- Mileage:
- 20,898
- Stock #:
- KM155807
- VIN:
- 1GTUUEEL2PZ155807
Sponsored Listing
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
20,898 mi
Highlands Ranch, CO
37 mi away
Good Deal
$53,736
- 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:
- 31,458
- Stock #:
- LZ295225
- VIN:
- 1GTP9EELXLZ295225
Price drop
-$2,699
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
31,458 mi
Lone Tree, CO
37 mi away
Good Deal
$45,500
$43,500
- 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:
- 4Sb--Leather, Jet Black / Kalahari, Interior Trim
- Transmission:
- Automatic
- Mileage:
- 39,104
- Stock #:
- AMZ294011
- VIN:
- 1GTP9EED5MZ294011
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
39,104 mi
Aurora, CO
26 mi away
Good Deal
$44,146
- 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:
- 24,363
- Stock #:
- 260481C
- VIN:
- 1GTUUEE81SZ136542
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
24,363 mi
Parker, CO
28 mi away
Great Deal
$53,738
- 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
Frederick, CO
3 mi away
Great Deal
$31,092
- 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, Perforated Leathe
- Transmission:
- Automatic
- Mileage:
- 59,090
- Stock #:
- ANZ646375
- VIN:
- 1GTPUEEL8NZ646375
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
59,090 mi
Aurora, CO
26 mi away
Good Deal
$46,608
- Year:
- 2024
- 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:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 24,625
- Stock #:
- TG249094A
- VIN:
- 3GTUUEE88RG168771
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
24,625 mi
Loveland, CO
23 mi away
Good Deal
$55,575
- 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:
- 71,389
- Stock #:
- FP00789
- VIN:
- 1GTUUEET5NZ613689
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
71,389 mi
Home delivery from Junction City, KS
Price includes $550 shipping
Good Deal
$42,949
- 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:
- Gray (Satin Steel Metallic)
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 111,661
- Stock #:
- MG369823
- VIN:
- 3GTP9EEL4MG369823
Price drop
-$1,051
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
111,661 mi
Littleton, CO
34 mi away
Good Deal
$35,273
$34,222
- 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 With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 58,199
- Stock #:
- L221653A
- VIN:
- 1GTUUEE85RZ221653
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
58,199 mi
Longmont, CO
7 mi away
Good Deal
$49,998
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- White
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 60,636
- Stock #:
- PZ223680T
- VIN:
- 1GTUUEE80PZ223680
Price drop
-$1,760
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
60,636 mi
Greeley, CO
22 mi away
Good Deal
$47,754
$46,793
- 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
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
42,500 mi
Home delivery from Lehi, UT
Price includes $367 shipping
Fair Deal
$50,440
- 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:
- 72,145
- Stock #:
- RZ131496
- VIN:
- 1GTUUEE83RZ131496
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
72,145 mi
Lone Tree, CO
37 mi away
Great Deal
$45,912
- 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
- Transmission:
- 10-Speed Automatic
- Mileage:
- 76,514
- Stock #:
- 476718T
- VIN:
- 3GTP9EEL5MG476718
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
76,514 mi
Highlands Ranch, CO
37 mi away
Great Deal
$37,076
- 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:
- Volcanic Red Tintcoat
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents, Perforated Leathe
- Transmission:
- Automatic
- Mileage:
- 24,913
- Stock #:
- ARZ138555
- VIN:
- 1GTUUEEL0RZ138555
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
24,913 mi
Highlands Ranch, CO
38 mi away
Fair Deal
$57,264
- 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 With Kalahari Accents, Perforated Leathe
- Transmission:
- Automatic
- Mileage:
- 55,261
- Stock #:
- ARG259790
- VIN:
- 3GTUUEE87RG259790
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
55,261 mi
Highlands Ranch, CO
38 mi away
Fair Deal
$51,264
- 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:
- 45,433
- Stock #:
- 44450
- VIN:
- 1GTUUEE86PZ223702
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
45,433 mi
Home delivery from Lubbock, TX
Price includes $1,461 shipping
Good Deal
$49,572
- 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, Perforated Leathe
- Transmission:
- Automatic
- Mileage:
- 83,639
- Stock #:
- TMZ353461D
- VIN:
- 1GTP9EED3MZ353461
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
83,639 mi
Highlands Ranch, CO
38 mi away
Fair Deal
$39,262
- 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:
- Blue
- Fuel type:
- Gasoline
- Transmission:
- 8-Speed Automatic
- Mileage:
- 112,644
- Stock #:
- 26056
- VIN:
- 1GTP9EEL9KZ254809
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
112,644 mi
Franktown, CO
50 mi away
Good Deal
$32,000
- 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:
- 67,584
- Stock #:
- YMZ378975
- VIN:
- 1GTU9EET2MZ378975
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
67,584 mi
Englewood, CO
34 mi away
Good Deal
$37,997
- 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:
- White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 70,889
- Stock #:
- T18274
- VIN:
- 1GTUUEEL0PZ200114
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
70,889 mi
Parker, CO
40 mi away
Great Deal
$43,600
- 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:
- 30,139
- Stock #:
- RG450614
- VIN:
- 3GTUUEEL5RG450614
Sponsored Listing
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
30,139 mi
Lone Tree, CO
37 mi away
Good Deal
$54,250
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 $27,889.00 to $86,293.00 with an average price of $33,773.79. 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 Frederick, CO?
The average GMC Sierra 1500 AT4 costs about $32,098.25. The average price has decreased by -0.7% since last year. The 309 for sale near Frederick, CO on CarGurus, range from $27,889 to $86,293 in price.
How many GMC Sierra 1500 AT4 vehicles in Frederick, CO have no reported accidents or damage?
286 out of 309 for sale near Frederick, CO 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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