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New GMC Sierra 1500 AT4 for Sale near Prairie du Rocher, IL

185 results
Prairie du Rocher, IL
2026 GMC Sierra 1500 AT4 Crew Cab 4WD Bommarito Buick GMC West County

2026 GMC Sierra 1500

New car | MSRP $73,455

$61,874

Ellisville, MO
43 mi away
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
Combined gas mileage:
22 MPG
Fuel type:
Diesel
Interior color:
Jet Black with Kalahari accents Leather
Transmission:
Automatic
Mileage:
100
Stock number:
87261
VIN:
1GTUUEE88TZ159964

Sponsored

2026 GMC Sierra 1500 AT4 Crew Cab 4WD

2026 GMC Sierra 1500

New car | MSRP $72,610

$65,830

Columbia, IL
27 mi away
Year:
2026
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:
22 MPG
Fuel type:
Diesel
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
2
Stock number:
G8054
VIN:
1GTUUEE89TZ142235

Sponsored

2026 GMC Sierra 1500 AT4 Crew Cab 4WD

2026 GMC Sierra 1500

New car

$66,329

Saint Louis, MO
33 mi away
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:
Volcanic Red Tintcoat
Combined gas mileage:
15 MPG
Fuel type:
Gasoline
Interior color:
Jet Black with Kalahari accents Leather
Transmission:
Automatic
Mileage:
4
Stock number:
T260317
VIN:
1GTUUEEL2TZ176764

Sponsored

2026 GMC Sierra 1500 AT4 Crew Cab 4WD

2026 GMC Sierra 1500

New car | MSRP $76,380

$63,527

Ellisville, MO
43 mi away
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 with Kalahari accents Leather
Transmission:
Automatic
Mileage:
4
Stock number:
87328
VIN:
1GTUUEEL5TZ285395

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $75,650

$78,702

Herculaneum, MO
19 mi away
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, Perforated Leathe
Transmission:
Automatic
Mileage:
14
Stock number:
263287
VIN:
3GTUUEEL2TG260566

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $73,455

$61,874

Ellisville, MO
43 mi away
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
Combined gas mileage:
22 MPG
Fuel type:
Diesel
Interior color:
Jet Black with Kalahari accents Leather
Transmission:
Automatic
Mileage:
100
Stock number:
87261
VIN:
1GTUUEE88TZ159964

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $72,275

$58,599

Collinsville, IL
42 mi away
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
Combined gas mileage:
22 MPG
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
2,475
Stock number:
L261235
VIN:
1GTUUEE81TZ176542

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $75,925

$63,114

Ellisville, MO
43 mi away
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 Leather
Transmission:
Automatic
Mileage:
142
Stock number:
87369
VIN:
3GTUUEEL8TG274374

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $73,750

$61,904

Collinsville, IL
42 mi away
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
Combined gas mileage:
22 MPG
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L264867
VIN:
3GTUUEE80TG188021

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $77,220

$63,995

Collinsville, IL
42 mi away
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
Transmission:
Automatic
Mileage:
7
Stock number:
L264139
VIN:
1GTUUEEL0TZ289421

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $73,800

$61,949

Collinsville, IL
42 mi away
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
Combined gas mileage:
22 MPG
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L262732
VIN:
3GTUUEE83TG208696

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $73,800

$59,949

Collinsville, IL
42 mi away
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
Combined gas mileage:
22 MPG
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
2,212
Stock number:
L262165
VIN:
3GTUUEE81TG186844

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $76,095

$62,995

Collinsville, IL
42 mi away
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
Transmission:
Automatic
Mileage:
7
Stock number:
L264129
VIN:
1GTUUEEL4TZ289180

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $73,800

$61,949

Collinsville, IL
42 mi away
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
Combined gas mileage:
22 MPG
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L262600
VIN:
3GTUUEE82TG208706

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $73,800

$61,949

Collinsville, IL
42 mi away
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
Combined gas mileage:
22 MPG
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L262636
VIN:
3GTUUEE87TG208779

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $73,000

$64,941

Collinsville, IL
42 mi away
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
Combined gas mileage:
22 MPG
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L263521
VIN:
3GTUUEE80TG225956

  1. Home
  2. / New Cars
  3. / GMC Sierra 1500
  4. / AT4
  5. / Illinois
  6. / Prairie du Rocher
Overview
Reviews
FAQs
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.

5 Overall rating

(2 reviews)
Anonymous
5.0
Reviewed a 2019 GMC AT4 Crew Cab 4WD on Sep 08, 2024

The truck had all the features I wanted and the price was in-line, or better with others in my search.

Amjad I
5.0
Reviewed a 2019 GMC AT4 Crew Cab 4WD on Aug 06, 2024

Great prices. The truck that I purchased is in good condition and it looks like that it was serviced.

GMC Sierra 1500 AT4 FAQs

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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