Used GMC Sierra 1500 AT4 for Sale nearTimnath, CO
311 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:
- Summit White
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 38,200
- Stock #:
- 16571Z
- VIN:
- 1GTUUEEL1SZ329617
New arrival
Sponsored by Johnson Auto Plaza
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
38,200 mi
Brighton, CO
41 mi away
Fair Deal
$54,988
- 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
- Transmission:
- Automatic
- Mileage:
- 164,460
- Stock #:
- N12717
- VIN:
- 3GTP9EEL0KG293014
Sponsored Listing
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
164,460 mi
Greeley, CO
16 mi away
Fair Deal
$26,984
- 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:
- 97,322
- Stock #:
- 26-2262A
- VIN:
- 3GTUUEEL8RG139064
Sponsored Listing
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
97,322 mi
Aurora, CO
59 mi away
Good Deal
$45,261
- 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:
- 142,945
- Stock #:
- L175203
- VIN:
- 1GTP9EEL1MZ175203
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
142,945 mi
Longmont, CO
26 mi away
Great Deal
$29,523
- 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:
- Automatic
- Mileage:
- 80,762
- Stock #:
- J156
- VIN:
- 3GTP9EEL6LG452779
New arrival
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
80,762 mi
Denver, CO
57 mi away
Fair Deal
$38,995
- 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, Perforated Leathe
- Transmission:
- Automatic
- Mileage:
- 67,705
- Stock #:
- TPG333254
- VIN:
- 3GTUUEEL1PG333254
Price drop
-$1,242
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
67,705 mi
Highlands Ranch, CO
67 mi away
Good Deal
$47,818
$46,576
- 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 With Kalahari Accents, Perforated Leathe
- Transmission:
- Automatic
- Mileage:
- 98,592
- Stock #:
- PMG472190
- VIN:
- 3GTP9EEL2MG472190
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
98,592 mi
Aurora, CO
55 mi away
Fair Deal
$37,240
- 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
- Transmission:
- Automatic
- Mileage:
- 62,139
- Stock #:
- WP8556
- VIN:
- 1GTP9EEL4LZ214106
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
62,139 mi
Thornton, CO
45 mi away
Fair Deal
$41,443
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Onyx Black
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 60,296
- Stock #:
- RZ162144T
- VIN:
- 1GTUUEE86RZ162144
Price drop
-$1,699
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
60,296 mi
Castle Rock, CO
81 mi away
Great Deal
$48,697
$47,697
- 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 w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 46,466
- Stock #:
- P17881
- VIN:
- 3GTUUEEL1RG102907
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
46,466 mi
Aurora, CO
58 mi away
Good Deal
$51,549
- 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:
- Gray
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 48,915
- Stock #:
- 28762447
- VIN:
- 1GTUUEEL8PZ287888
New arrival
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
48,915 mi
Store transfer to Loveland, CO
Price includes $599 shipping
Great Deal
$47,597
- 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
57 mi away
Great Deal
$53,148
- 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
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
111,661 mi
Littleton, CO
63 mi away
Good Deal
$33,440
- 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
67 mi away
Great Deal
$45,912
- 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:
- Sterling Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 33,695
- Stock #:
- 838026A
- VIN:
- 3GTUUEEL3RG253327
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
33,695 mi
Laramie, WY
62 mi away
Good Deal
$55,436
- 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:
- Dynamic Blue Metallic
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 56,362
- Stock #:
- WP8555
- VIN:
- 1GTUUEET5NZ643369
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
56,362 mi
Thornton, CO
45 mi away
Fair Deal
$46,631
- 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 $1,238 shipping
Fair Deal
$39,958
- 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 $438 shipping
Great Deal
$52,637
- 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
67 mi away
Good Deal
$50,916
- 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:
- 34,011
- Stock #:
- U16925
- VIN:
- 1GTUUEE86RZ207647
Price drop
-$1,733
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
34,011 mi
Henderson, CO
46 mi away
Good Deal
$54,593
$52,860
- 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
26 mi away
Good Deal
$48,858
- 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:
- Onyx Black
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 38,318
- Stock #:
- L314451
- VIN:
- 3GTUUEEL7PG314451
New arrival
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
38,318 mi
Longmont, CO
26 mi away
Good Deal
$50,998
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Sterling Metallic
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 71,923
- Stock #:
- M1000E
- VIN:
- 1GTUUEE81PZ240925
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
71,923 mi
Castle Rock, CO
81 mi away
Fair Deal
$44,792
- 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 With Kalahari Accents, Perforated Leathe
- Transmission:
- Automatic
- Mileage:
- 98,592
- Stock #:
- PMG472190
- VIN:
- 3GTP9EEL2MG472190
Sponsored Listing
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
98,592 mi
Aurora, CO
55 mi away
Fair Deal
$37,240
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 $26,912.00 to $85,478.55 with an average price of $33,378.10. 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 Timnath, CO?
The average GMC Sierra 1500 AT4 costs about $31,831.24. The average price has decreased by -1.5% since last year. The 295 for sale near Timnath, CO on CarGurus, range from $26,912 to $85,479 in price.
How many GMC Sierra 1500 AT4 vehicles in Timnath, CO have no reported accidents or damage?
277 out of 295 for sale near Timnath, 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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2027 GMC Sierra 1500 Pricing, Specs, and Release Date
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