Used GMC Sierra 1500 AT4 for Sale nearMillbrae, CA
237 vehicles found
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Coastal Dune
- Combined gas mileage:
- 15 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 200
- Stock #:
- G4206G
- VIN:
- 3GTUUEEL4TG323991
New arrival
Sponsored by Dublin Buick GMC
2026 GMC Sierra 1500
AT4 Crew Cab 4WD
200 mi
Dublin, CA
30 mi away
Great Deal
$59,883
- 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:
- 114,212
- Stock #:
- 260354A
- VIN:
- 3GTP9EELXLG439386
Sponsored Listing
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
114,212 mi
Concord, CA
33 mi away
Great Deal
$30,938
- 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
- Transmission:
- Automatic
- Mileage:
- 65,549
- Stock #:
- P18173
- VIN:
- 3GTUUEET8NG572118
Sponsored Listing
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
65,549 mi
Oakland, CA
15 mi away
Fair Deal
$45,047
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Coastal Dune
- Combined gas mileage:
- 15 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 200
- Stock #:
- G4206G
- VIN:
- 3GTUUEEL4TG323991
New arrival
2026 GMC Sierra 1500
AT4 Crew Cab 4WD
200 mi
Dublin, CA
30 mi away
Great Deal
$59,883
- 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:
- 114,212
- Stock #:
- 260354A
- VIN:
- 3GTP9EELXLG439386
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
114,212 mi
Concord, CA
33 mi away
Great Deal
$30,938
- 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
- Transmission:
- Automatic
- Mileage:
- 43,950
- Stock #:
- PT0362
- VIN:
- 1GTUUEE89PZ250683
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
43,950 mi
Santa Clara, CA
31 mi away
Fair Deal
$47,878
- 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:
- 93,782
- Stock #:
- TU69872A
- VIN:
- 1GTP9EEL5LZ174425
New arrival
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
93,782 mi
Petaluma, CA
48 mi away
Good Deal
$34,876
- 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
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 19,012
- Stock #:
- 2310429
- VIN:
- 1GTUUEEL4SZ310429
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
19,012 mi
Home delivery from Reno, NV
Price includes $388 shipping
Good Deal
$54,132
- 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 w/Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 78,561
- Stock #:
- 449150
- VIN:
- 3GTU9EET5LG449150
2020 GMC Sierra 1500
AT4 Crew Cab LB 4WD
78,561 mi
Home delivery from Scottsdale, AZ
Price includes $1,015 shipping
Fair Deal
$36,310
- 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
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 27,524
- Stock #:
- TY1242
- VIN:
- 1GTUUEEL5SZ296511
Price drop
-$1,700
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
27,524 mi
Oakland, CA
17 mi away
Fair Deal
$53,988
$52,288
- 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:
- 13,473
- Stock #:
- T295119
- VIN:
- 1GTUUEE86SZ295119
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
13,473 mi
Home delivery from Addison, TX
Price includes $2,208 shipping
Fair Deal
$59,932
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Transmission:
- Automatic
- Mileage:
- 91,652
- Stock #:
- J313
- VIN:
- 1GTU9EET5LZ152993
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
91,652 mi
Home delivery from St. George, UT
Price includes $483 shipping
Great Deal
$31,230
- 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
- Transmission:
- Automatic
- Mileage:
- 29,687
- Stock #:
- 10364
- VIN:
- 1GTUUEE83PZ238738
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
29,687 mi
Home delivery from Johnson Creek, WI
Free home delivery
Good Deal
$49,478
- 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:
- 77,859
- Stock #:
- STK444645
- VIN:
- 1GTP9EEL9MZ444645
Price drop
-$1,000
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
77,859 mi
Home delivery from Lafayette, IN
Price includes $1,910 shipping
Good Deal
$37,905
$36,905
- Year:
- 2026
- 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:
- 15 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 4,997
- Stock #:
- TY1301
- VIN:
- 1GTUUEEL9TZ215804
2026 GMC Sierra 1500
AT4 Crew Cab 4WD
4,997 mi
Home delivery from Tracy, CA
Price includes $55 shipping
Great Deal
$58,023
- 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:
- 25,892
- Stock #:
- T6225B
- VIN:
- 1GTUUEE8XPZ203890
2023 GMC Sierra 1500
AT4 Crew Cab 4WD
25,892 mi
Home delivery from Las Vegas, NV
Price includes $409 shipping
Good Deal
$51,381
- 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:
- Titanium Rush Metallic
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 56,068
- Stock #:
- 10300
- VIN:
- 1GTPUEEL5NZ611003
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
56,068 mi
Home delivery from Johnson Creek, WI
Free home delivery
Good Deal
$45,478
- 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:
- Titanium Rush Metallic
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 105,462
- Stock #:
- BC569360A
- VIN:
- 3GTUUEET0NG569360
2022 GMC Sierra 1500
AT4 Crew Cab 4WD
105,462 mi
Home delivery from Burley, ID
Price includes $846 shipping
Fair Deal
$40,335
- Year:
- 2025
- 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:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 31,073
- Stock #:
- G15021TA
- VIN:
- 3GTUUEE88SG227582
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
31,073 mi
Home delivery from Seaside, CA
Price includes $95 shipping
Good Deal
$53,679
- 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:
- 81,801
- Stock #:
- U260918428T1
- VIN:
- 3GTU9EET0MG331248
New arrival
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
81,801 mi
Home delivery from Davie, FL
Price includes $5,148 shipping
Great Deal
$35,642
- 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:
- White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 57,422
- Stock #:
- 29874
- VIN:
- 1GTUUEEL3SZ309434
New arrival
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
57,422 mi
Home delivery from Merced, CA
Price includes $110 shipping
Good Deal
$47,182
- Year:
- 2026
- 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:
- 15 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 10,764
- Stock #:
- TY1209
- VIN:
- 3GTUUEEL4TG198295
2026 GMC Sierra 1500
AT4 Crew Cab 4WD
10,764 mi
Oakland, CA
17 mi away
Fair Deal
$60,988
- 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
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 11,688
- Stock #:
- 2355965
- VIN:
- 3GTUUEEL0SG355965
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
11,688 mi
Home delivery from Reno, NV
Price includes $388 shipping
Great Deal
$54,132
- Year:
- 2026
- 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:
- 15 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 4,048
- Stock #:
- R14549
- VIN:
- 1GTUUEEL1TZ267430
Sponsored Listing
2026 GMC Sierra 1500
AT4 Crew Cab 4WD
4,048 mi
Concord, CA
32 mi away
Good Deal
$60,083
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 $27,861.00 to $86,809.00 with an average price of $32,615.33. 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
*CarGurus meticulously monitors the prices of millions of pre-owned vehicle listings, offering users precise and up-to-date market insights. Historical pricing data excludes any additional dealer fees as of May 3, 2026.
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 Millbrae, CA?
The average GMC Sierra 1500 AT4 costs about $31,047.69. The average price has decreased by -3.6% since last year. The 237 for sale near Millbrae, CA on CarGurus, range from $27,861 to $86,809 in price.
How many GMC Sierra 1500 AT4 vehicles in Millbrae, CA have no reported accidents or damage?
230 out of 237 for sale near Millbrae, CA 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/MPGe.
What fuel types are available?
Diesel, Gasoline engines are available.
*CarGurus meticulously monitors the prices of millions of pre-owned vehicle listings, offering users precise and up-to-date market insights. Historical pricing data excludes any additional dealer fees as of May 3, 2026.
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