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New GMC Sierra 1500 Denali for Sale near O Fallon, IL

203 results
O Fallon, IL
2025 GMC Sierra 1500 Denali Crew Cab 4WD Suntrup Buick-GMC

2025 GMC Sierra 1500

New car | MSRP $77,945

$65,901

Saint Peters, MO
39 mi away
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:
Sterling Metallic
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
5
Stock number:
53325
VIN:
3GTUUGEL5SG168393

Sponsored

2026 GMC Sierra 1500 Denali Crew Cab 4WD

2026 GMC Sierra 1500

New car

$65,580

Saint Louis, MO
25 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
Fuel type:
Gasoline
Interior color:
Jet Black Leather
Transmission:
Automatic
Mileage:
3
Stock number:
T260507
VIN:
3GTUUGEL2TG155604

Sponsored

2026 GMC Sierra 1500 Denali Crew Cab 4WD

2026 GMC Sierra 1500

New car

$68,581

Saint Louis, MO
25 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
Fuel type:
Gasoline
Interior color:
Jet Black Leather
Transmission:
Automatic
Mileage:
4
Stock number:
T260312
VIN:
1GTUUGEL8TZ174495

Sponsored

2025 GMC Sierra 1500 Denali Crew Cab 4WD

2025 GMC Sierra 1500

New car | MSRP $77,697

$61,956

Ellisville, MO
37 mi away
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 Leather
Transmission:
Automatic
Mileage:
5
Stock number:
86119
VIN:
3GTUUGEL9SG221791

2026 GMC Sierra 1500 Denali Crew Cab 4WD

2026 GMC Sierra 1500

New car | MSRP $78,797

$65,508

Ellisville, MO
37 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
Fuel type:
Gasoline
Interior color:
Jet Black Leather
Transmission:
Automatic
Mileage:
1
Stock number:
87022
VIN:
1GTUUGEL3TZ135135

2026 GMC Sierra 1500 Denali Crew Cab 4WD

2026 GMC Sierra 1500

New car | MSRP $73,335

$61,553

Collinsville, IL
8 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Sterling Metallic
Fuel type:
Gasoline
Interior color:
Atmosphere/Brownstone
Transmission:
Automatic
Mileage:
7
Stock number:
L262686
VIN:
3GTUUGED8TG210792

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $73,335

$61,553

Collinsville, IL
8 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Coastal Dune
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L262865
VIN:
3GTUUGED6TG223041

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $73,835

$61,011

Collinsville, IL
8 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Sterling Metallic
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
927
Stock number:
L26311
VIN:
1GTUUGED4TZ110074

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $73,335

$61,553

Collinsville, IL
8 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Onyx Black
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L262685
VIN:
3GTUUGED8TG210789

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $80,442

$66,988

Ellisville, MO
37 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:
Glacier White Tricoat
Fuel type:
Gasoline
Interior color:
Jet Black Leather
Mileage:
4
Stock number:
87174
VIN:
1GTUUGEL9TZ232629

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$61,457

Saint Louis, MO
25 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Downpour Metallic
Fuel type:
Gasoline
Interior color:
Jet Black Leather
Transmission:
Automatic
Mileage:
5
Stock number:
T260664
VIN:
1GTUUGED4TZ216444

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car

$61,457

Saint Louis, MO
25 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Onyx Black
Fuel type:
Gasoline
Interior color:
Jet Black Leather
Transmission:
Automatic
Mileage:
2
Stock number:
T260607
VIN:
3GTUUGED7TG175565

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $73,835

$61,011

Collinsville, IL
8 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Titanium Rush Metallic
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
1,559
Stock number:
L26372
VIN:
1GTUUGED7TZ114314

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $73,935

$62,084

Collinsville, IL
8 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Glacier White Tricoat
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L262467
VIN:
3GTUUGED6TG200715

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $73,935

$62,084

Collinsville, IL
8 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Glacier White Tricoat
Fuel type:
Gasoline
Interior color:
Atmosphere/Brownstone
Transmission:
Automatic
Mileage:
7
Stock number:
L262466
VIN:
3GTUUGED8TG200652

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $79,712

$66,331

Ellisville, MO
37 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
Fuel type:
Gasoline
Interior color:
Jet Black Leather
Transmission:
Automatic
Mileage:
1
Stock number:
87024
VIN:
1GTUUGEL2TZ126300

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $77,200

$66,532

Collinsville, IL
8 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:
Coastal Dune
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L262840
VIN:
3GTUUGE89TG178325

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $79,842

$66,448

Ellisville, MO
37 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
Fuel type:
Gasoline
Interior color:
Jet Black Leather
Transmission:
Automatic
Mileage:
4
Stock number:
87051
VIN:
1GTUUGEL4TZ131479

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $78,245

$67,457

Collinsville, IL
8 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
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L262759
VIN:
1GTUUGE80TZ243496

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $79,842

$66,448

Ellisville, MO
37 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
Fuel type:
Gasoline
Interior color:
Jet Black Leather
Transmission:
Automatic
Mileage:
4
Stock number:
87033
VIN:
1GTUUGEL7TZ135137

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $73,335

$61,553

Collinsville, IL
8 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Onyx Black
Fuel type:
Gasoline
Interior color:
Atmosphere/Brownstone
Transmission:
Automatic
Mileage:
7
Stock number:
L263148
VIN:
3GTUUGEDXTG231451

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $73,935

$62,084

Collinsville, IL
8 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Glacier White Tricoat
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L262804
VIN:
3GTUUGED4TG210790

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $76,405

$64,270

Collinsville, IL
8 mi away
Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
355 hp 5.3L V8
Exterior color:
Coastal Dune
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L262736
VIN:
3GTUUGED0TG209877

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $79,842

$66,448

Ellisville, MO
37 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:
Downpour Metallic
Fuel type:
Gasoline
Interior color:
Jet Black Leather
Transmission:
Automatic
Mileage:
1
Stock number:
87021
VIN:
1GTUUGEL0TZ133987

  1. Home
  2. / New Cars
  3. / GMC Sierra 1500
  4. / Denali
  5. / Illinois
  6. / O Fallon
Overview
Reviews
FAQs
The GMC Sierra 1500 – when taken in combination with its Chevrolet Silverado 1500 twin – is one of the most popular vehicles in the United States. The Denali used to be the top dog in Sierra trim levels, but in recent years, it’s been overshadowed by the AT4X and the Denali Ultimate. The Sierra 1500 Denali is available only in the Crew Cab bodystyle, either with a short or a standard cargo box, and in rear-drive or four-wheel drive. Three different engines are available, from the 5.3-liter V-8, the 3.0-liter Duramax inline six-cylinder diesel, or the 6.2-liter EcoTec V-8 (in four-wheel drive only). All of the trucks feature a 10-speed automatic transmission.

5 Overall rating

(1 reviews)
Ruben M. S
5.0
Reviewed a 2011 GMC Denali Crew Cab AWD on Jul 28, 2013

I've had this truck for 2 1/2 years and have had no mechanical issues of any kind. It has been on long distance road trips and provided us comfort, lots of room, and reliability. I will be buying a new Denali sometime soon.

GMC Sierra 1500 Denali FAQs

What is the fuel economy of the GMC Sierra 1500 Denali?

Depending on the engine and options, the GMC Sierra 1500 Denali gets between 14 and 24 MPG (or MPGe).

What fuel types are available?

Diesel, Flex Fuel Vehicle, Gasoline engines are available.

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