New GMC Sierra 1500 AT4 for Sale nearOconee, IL

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Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Fuel type:
Diesel
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
4
Stock #:
53921
VIN:
1GTUUEE87TZ433378
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,000

Suntrup Buick-GMC

Sponsored by Suntrup Buick-GMC

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Saint Peters, MO
86 mi away

New car

MSRP $75,304

$64,638

$62,638

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Coastal Dune
Fuel type:
Diesel
Interior color:
Jet Black With Kalahari Accents, Perforated Leathe
Transmission:
Automatic
Mileage:
6
Stock #:
G26112
VIN:
1GTUUEE86TZ519264
Coastal Dune 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$1,530

Sponsored Listing

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Centralia, IL
51 mi away

New car

MSRP $74,755

$66,198

$64,703

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Summit White
Fuel type:
Diesel
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Stock #:
G261170
VIN:
3GTUUEE81TG518345
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,000

Sponsored Listing

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

O'Fallon, MO
96 mi away

New car

MSRP $74,980

$62,206

$60,206

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Onyx Black
Fuel type:
Diesel
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
5
Stock #:
G40695
VIN:
1GTUUEE86TZ544293
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$6,579

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Mattoon, IL
41 mi away

New car

MSRP $72,635

$66,385

$59,806

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Coastal Dune
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
2,431
Stock #:
L267067
VIN:
3GTUUEE82TG434311
Coastal Dune 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
New arrival

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $70,880

$54,771

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
2,100
Stock #:
L267005
VIN:
1GTUUEE8XTZ442513
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
New arrival

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $71,875

$55,651

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:
Onyx Black
Combined gas mileage:
15 MPG
Fuel type:
Gasoline
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Stock #:
G261142
VIN:
1GTUUEEL5TZ495348
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,250

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

O'Fallon, MO
96 mi away

New car

MSRP $77,370

$66,619

$64,369

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Onyx Black
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L267435
VIN:
3GTUUEE85TG381037
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $71,875

$57,651

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Summit White
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L268057
VIN:
3GTUUEE89TG515001
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $71,380

$57,213

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Coastal Dune
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L267417
VIN:
1GTUUEE82TZ460679
Coastal Dune 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $72,675

$58,359

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Coastal Dune
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L268270
VIN:
3GTUUEE86TG515764
Coastal Dune 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $75,200

$60,625

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L268173
VIN:
3GTUUEE84TG515424
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $75,200

$60,625

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Onyx Black
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L268172
VIN:
3GTUUEE80TG515274
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
New arrival

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $75,200

$60,625

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Summit White
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L267385
VIN:
1GTUUEE87TZ457454
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
New arrival

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $71,685

$57,499

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Coastal Dune
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L268451
VIN:
1GTUUEE82TZ526440
Coastal Dune 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $72,180

$57,962

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:
2,121
Stock #:
L265863
VIN:
3GTUUEEL7TG358363
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
New arrival

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $74,075

$59,598

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L267359
VIN:
1GTUUEE87TZ457275
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $71,875

$57,651

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L267372
VIN:
1GTUUEE80TZ456937
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $72,675

$58,359

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Coastal Dune
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L268484
VIN:
3GTUUEE85TG514718
Coastal Dune 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $72,875

$58,567

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Coastal Dune
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L268452
VIN:
1GTUUEE81TZ526607
Coastal Dune 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $74,700

$60,192

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Onyx Black
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L268269
VIN:
3GTUUEE85TG515285
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $75,200

$60,625

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L267374
VIN:
1GTUUEE81TZ456879
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
New arrival

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $73,400

$59,001

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Fuel type:
Diesel
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
4
Stock #:
53921
VIN:
1GTUUEE87TZ433378
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,000

Suntrup Buick-GMC

Sponsored by Suntrup Buick-GMC

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Saint Peters, MO
86 mi away

New car

MSRP $75,304

$64,638

$62,638

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Coastal Dune
Fuel type:
Diesel
Interior color:
Jet Black With Kalahari Accents, Perforated Leathe
Transmission:
Automatic
Mileage:
6
Stock #:
G26112
VIN:
1GTUUEE86TZ519264
Coastal Dune 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$1,530

Sponsored Listing

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Centralia, IL
51 mi away

New car

MSRP $74,755

$66,198

$64,703

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Summit White
Fuel type:
Diesel
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Stock #:
G261170
VIN:
3GTUUEE81TG518345
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,000

Sponsored Listing

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

O'Fallon, MO
96 mi away

New car

MSRP $74,980

$62,206

$60,206

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Onyx Black
Fuel type:
Diesel
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
5
Stock #:
G40695
VIN:
1GTUUEE86TZ544293
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$6,579

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Mattoon, IL
41 mi away

New car

MSRP $72,635

$66,385

$59,806

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Coastal Dune
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
2,431
Stock #:
L267067
VIN:
3GTUUEE82TG434311
Coastal Dune 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
New arrival

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $70,880

$54,771

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
2,100
Stock #:
L267005
VIN:
1GTUUEE8XTZ442513
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
New arrival

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $71,875

$55,651

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:
Onyx Black
Combined gas mileage:
15 MPG
Fuel type:
Gasoline
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Stock #:
G261142
VIN:
1GTUUEEL5TZ495348
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,250

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

O'Fallon, MO
96 mi away

New car

MSRP $77,370

$66,619

$64,369

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Onyx Black
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L267435
VIN:
3GTUUEE85TG381037
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $71,875

$57,651

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Summit White
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L268057
VIN:
3GTUUEE89TG515001
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $71,380

$57,213

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Coastal Dune
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L267417
VIN:
1GTUUEE82TZ460679
Coastal Dune 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $72,675

$58,359

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Coastal Dune
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L268270
VIN:
3GTUUEE86TG515764
Coastal Dune 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $75,200

$60,625

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L268173
VIN:
3GTUUEE84TG515424
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $75,200

$60,625

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Onyx Black
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L268172
VIN:
3GTUUEE80TG515274
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
New arrival

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $75,200

$60,625

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Summit White
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L267385
VIN:
1GTUUEE87TZ457454
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
New arrival

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $71,685

$57,499

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Coastal Dune
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L268451
VIN:
1GTUUEE82TZ526440
Coastal Dune 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $72,180

$57,962

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:
2,121
Stock #:
L265863
VIN:
3GTUUEEL7TG358363
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
New arrival

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $74,075

$59,598

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L267359
VIN:
1GTUUEE87TZ457275
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $71,875

$57,651

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L267372
VIN:
1GTUUEE80TZ456937
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $72,675

$58,359

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Coastal Dune
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L268484
VIN:
3GTUUEE85TG514718
Coastal Dune 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $72,875

$58,567

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Coastal Dune
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L268452
VIN:
1GTUUEE81TZ526607
Coastal Dune 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $74,700

$60,192

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Onyx Black
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L268269
VIN:
3GTUUEE85TG515285
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $75,200

$60,625

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock #:
L267374
VIN:
1GTUUEE81TZ456879
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
New arrival

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Collinsville, IL
63 mi away

New car

MSRP $73,400

$59,001

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 $23,960.00 to $116,397.85 with an average price of $31,628.51. 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.

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