Used GMC Sierra 1500 AT4 for Sale nearRoundup, MT
246 vehicles found
Shop with transparent pricing.
Only show listings that include dealer fees- 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:
- Onyx Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 41,839
- Stock #:
- T26131C
- VIN:
- 1GTU9EET2MZ205683
Sponsored by Rimrock Subaru
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
41,839 mi
Billings, MT
51 mi away
Fair Deal
$44,694
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Purple
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 86,548
- Stock #:
- H188345
- VIN:
- 3GTUUEE83RG188345
Price drop
-$1,000
Sponsored Listing
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
86,548 mi
Billings, MT
53 mi away
Great Deal
$46,424
$45,424
- 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:
- Titanium Rush Metallic
- Fuel type:
- Gasoline
- Interior color:
- Jet Black w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 29,465
- Stock #:
- 189312TG
- VIN:
- 3GTUUEEL1SG189312
Sponsored Listing
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
29,465 mi
Billings, MT
51 mi away
Good Deal
$57,336
- 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
- Transmission:
- Automatic
- Mileage:
- 117,424
- Stock #:
- 25090
- VIN:
- 1GTPUEEL3NZ643853
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
117,424 mi
Billings, MT
51 mi away
Good Deal
$38,593
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Deep Bronze Metallic
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 66,216
- Stock #:
- P45478
- VIN:
- 1GTUUEE85PZ245478
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
66,216 mi
Home delivery from Tulsa, OK
Price includes $1,455 shipping
Fair Deal
$49,333
- 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:
- 23,292
- Stock #:
- TWF1774
- VIN:
- 3GTUUEE8XRG342730
New arrival
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
23,292 mi
Home delivery from Tulsa, OK
Price includes $1,940 shipping
Good Deal
$56,400
- 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:
- 24,419
- Stock #:
- F2636A
- VIN:
- 1GTUUEEL8RZ113824
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
24,419 mi
Lewistown, MT
56 mi away
Great Deal
$51,999
- 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 $696 shipping
Great Deal
$52,895
- 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 w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 96,376
- Stock #:
- 142692
- VIN:
- 1GTUUEE87PZ142692
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
96,376 mi
Home delivery from Mesa, AZ
Price includes $1,828 shipping
Great Deal
$38,418
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Gray
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 52,754
- Stock #:
- BC22919
- VIN:
- 1GTUUEE84PZ150278
New arrival
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
52,754 mi
Home delivery from Twin Falls, ID
Price includes $610 shipping
Good Deal
$49,104
- 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:
- 20,872
- Stock #:
- PB26175
- VIN:
- 1GTUUEEL6RZ106256
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
20,872 mi
Lewistown, MT
56 mi away
Good Deal
$55,000
- 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:
- Gray (Satin Steel Metallic)
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black with Kalahari accents
- Transmission:
- Automatic
- Mileage:
- 32,602
- Stock #:
- 20112
- VIN:
- 3GTP9EED9MG344859
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
32,602 mi
Home delivery from El Cajon, CA
Price includes $1,566 shipping
Good Deal
$43,588
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Desert Sand Metallic
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 52,395
- Stock #:
- 44221B
- VIN:
- 3GTUUEE83PG192392
New arrival
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
52,395 mi
Home delivery from Lubbock, TX
Price includes $2,889 shipping
Fair Deal
$51,056
- 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:
- 112,788
- Stock #:
- TSS1530
- VIN:
- 3GTP9EEL9MG394376
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
112,788 mi
Home delivery from Tulsa, OK
Price includes $1,940 shipping
Fair Deal
$35,447
- Year:
- 2019
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Exterior color:
- Onyx Black
- Interior color:
- Jet Black w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 96,461
- Stock #:
- 3356
- VIN:
- 1GTP9EED2KZ370703
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
96,461 mi
Home delivery from Spearfish, SD
Price includes $526 shipping
Good Deal
$33,165
- 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:
- Onyx Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 41,839
- Stock #:
- T26131C
- VIN:
- 1GTU9EET2MZ205683
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
41,839 mi
Billings, MT
51 mi away
Fair Deal
$44,694
- 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:
- White
- Fuel type:
- Gasoline
- Interior color:
- No Color
- Mileage:
- 89,398
- Stock #:
- 1373
- VIN:
- 1GTP9EELXMZ122631
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
89,398 mi
Home delivery from Folsom, CA
Price includes $1,254 shipping
Good Deal
$38,149
- 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
- Interior color:
- Jet Black w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 124,109
- Stock #:
- 13722
- VIN:
- 1GTP9EEL3KZ151305
2019 GMC Sierra 1500
AT4 Crew Cab 4WD
124,109 mi
Home delivery from Everett, WA
Price includes $976 shipping
Good Deal
$30,522
- 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:
- Sterling Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 66,459
- Stock #:
- P10318
- VIN:
- 1GTUUEEL6PZ154806
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
66,459 mi
Home delivery from Colorado Springs, CO
Price includes $561 shipping
Great Deal
$46,358
- 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 With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 120,545
- Stock #:
- 22781
- VIN:
- 1GTP9EEL6MZ151575
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
120,545 mi
Home delivery from Lynnwood, WA
Price includes $1,465 shipping
Good Deal
$32,564
- 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
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
49,882 mi
Home delivery from Wesley Chapel, FL
Price includes $2,369 shipping
Good Deal
$50,389
- Year:
- 2023
- 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:
- 90,173
- Stock #:
- 26011A
- VIN:
- 1GTUUEE83PZ178556
Price drop
-$1,000
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
90,173 mi
Home delivery from Cooperstown, ND
Price includes $496 shipping
Good Deal
$44,794
$43,794
- 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:
- Black
- Transmission:
- Automatic
- Mileage:
- 88,116
- Stock #:
- B11091
- VIN:
- 1GTU9EET7MZ229705
New arrival
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
88,116 mi
Home delivery from Bellingham, WA
Price includes $1,002 shipping
Good Deal
$36,502
- 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:
- 24,419
- Stock #:
- F2636A
- VIN:
- 1GTUUEEL8RZ113824
Sponsored Listing
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
24,419 mi
Lewistown, MT
56 mi away
Great Deal
$51,999
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 $27,347.00 to $86,270.35 with an average price of $33,376.21. 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 Roundup, MT?
The average GMC Sierra 1500 AT4 costs about $31,857.12. The average price has decreased by -1.4% since last year. The 245 for sale near Roundup, MT on CarGurus, range from $27,347 to $86,270 in price.
How many GMC Sierra 1500 AT4 vehicles in Roundup, MT have no reported accidents or damage?
218 out of 245 for sale near Roundup, MT 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 Roundup MTGMC Sierra 1500 Denali in Roundup MTGMC Sierra 1500 AT4 in Roundup MTGMC Sierra 1500 Elevation in Roundup MTGMC Sierra 1500 SLE in Roundup MTGMC Sierra 1500 Base in Roundup MTGMC Sierra 1500 Work Truck in Roundup MTGMC Sierra 1500 SLE1 in Roundup MTGMC Sierra 1500 SL in Roundup MTGMC Sierra 1500 SLE2 in Roundup MT
GMC Sierra 1500 in Roundup MTOBS 1990s-era Chevy and Ford Trucks for Sale in Roundup MTUsed GMC Electric Cars for SaleLifted GMC trucks for sale in Roundup MTWork Trucks for Sale in Roundup MTAmerican Made Trucks For Sale in Roundup MTGM Certified Preowned Vehicles for Sale Near Roundup MTBest Pickup Trucks For Sale in Roundup MT
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 RoundupUsed SUVs / Crossovers for Sale with Low Mileage in RoundupUsed Hatchbacks for Sale with Low Mileage in RoundupUsed Convertibles for Sale with Low Mileage in RoundupUsed Vans for Sale with Low Mileage in RoundupUsed Minivans for Sale with Low Mileage in RoundupUsed Pickup Trucks for Sale with Low Mileage in RoundupUsed Coupes for Sale with Low Mileage in RoundupUsed Wagons for Sale with Low Mileage in Roundup
