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

273 results
O Fallon, IL
2026 GMC Sierra 1500 SLT Crew Cab 4WD Bommarito Buick GMC West County

2026 GMC Sierra 1500

New car | MSRP $67,792

$55,103

Ellisville, MO
37 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 Leather
Mileage:
4
Stock number:
87173
VIN:
3GTUUDEDXTG204605

Sponsored

2026 GMC Sierra 1500 SLT Crew Cab 4WD

2026 GMC Sierra 1500

New car

$55,661

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:
Summit White
Fuel type:
Gasoline
Interior color:
Dark Walnut/Slate Leather
Transmission:
Automatic
Mileage:
234
Stock number:
T260788
VIN:
1GTUUDED5TZ103486

Sponsored

2026 GMC Sierra 1500 SLT Crew Cab 4WD

2026 GMC Sierra 1500

New car

$60,243

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:
Sterling Metallic
Fuel type:
Gasoline
Interior color:
Dark Walnut/Slate Leather
Transmission:
Automatic
Mileage:
2
Stock number:
T260617
VIN:
3GTUUDEL0TG177857

Sponsored

2026 GMC Sierra 1500 SLT Crew Cab 4WD

2026 GMC Sierra 1500

New car | MSRP $65,022

$52,610

Ellisville, MO
37 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:
Summit White
Fuel type:
Gasoline
Interior color:
Dark Walnut/Slate Leather
Mileage:
4
Stock number:
87154
VIN:
3GTUUDED4TG197957

2026 GMC Sierra 1500 SLT Crew Cab 4WD

2026 GMC Sierra 1500

New car | MSRP $64,095

$52,587

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:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
7
Stock number:
L262580
VIN:
3GTUUDED3TG208785

2026 GMC Sierra 1500 SLT Crew Cab 4WD

2026 GMC Sierra 1500

New car | MSRP $61,290

$49,105

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:
7
Stock number:
L262550
VIN:
3GTUUDED9TG206720

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $65,800

$54,596

Collinsville, IL
8 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
Transmission:
Automatic
Mileage:
7
Stock number:
L262798
VIN:
3GTUUDEL8TG219756

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $66,475

$54,693

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:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
7
Stock number:
L263044
VIN:
3GTUUDED7TG221992

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $65,190

$55,556

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:
Summit White
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L262628
VIN:
3GTUUDE82TG198849

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $64,245

$52,720

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:
Volcanic Red Tintcoat
Fuel type:
Gasoline
Interior color:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
7
Stock number:
L262577
VIN:
3GTUUDED0TG208792

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $68,885

$58,848

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:
Titanium Rush Metallic
Fuel type:
Diesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L263037
VIN:
3GTUUDE84TG224562

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $63,600

$52,149

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:
Summit White
Fuel type:
Gasoline
Interior color:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
7
Stock number:
L262578
VIN:
3GTUUDED1TG208218

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $65,060

$51,441

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:
Summit White
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
2,498
Stock number:
L261400
VIN:
1GTUUDED3TZ187338

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $64,395

$52,852

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:
Summit White
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L262576
VIN:
3GTUUDED0TG208212

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $64,890

$53,291

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:
7
Stock number:
L262831
VIN:
3GTUUDED2TG213962

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $69,130

$55,043

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:
Volcanic Red Tintcoat
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
2,342
Stock number:
L26530
VIN:
1GTUUDED0TZ127680

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $68,240

$56,277

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:
Volcanic Red Tintcoat
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
7
Stock number:
L262677
VIN:
3GTUUDED4TG211033

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $68,385

$56,384

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:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
7
Stock number:
L262680
VIN:
3GTUUDED9TG210802

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $62,845

$51,481

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:
7
Stock number:
L262776
VIN:
3GTUUDED6TG215004

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $68,980

$55,910

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:
Dark Walnut/Slate
Transmission:
Automatic
Mileage:
7
Stock number:
L26876
VIN:
1GTUUDED8TZ152858

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $64,095

$52,587

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:
L263047
VIN:
3GTUUDED2TG226212

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $67,665

$57,415

O'Fallon, MO
47 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:
Titainium
Fuel type:
Gasoline
Interior color:
Black
Transmission:
Automatic
Stock number:
G26229
VIN:
3GTUUDED0TG134628

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $65,595

$51,914

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:
Summit White
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
2,305
Stock number:
L261000
VIN:
3GTUUDED6TG127098

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 1500

New car | MSRP $62,845

$51,481

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:
7
Stock number:
L262579
VIN:
3GTUUDED2TG207370

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  3. / GMC Sierra 1500
  4. / SLT
  5. / Illinois
  6. / O Fallon
FAQs

GMC Sierra 1500 SLT FAQs

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

Depending on the engine and options, the GMC Sierra 1500 SLT gets between 16 and 24 MPG (or MPGe).

What fuel types are available?

Diesel, Flex Fuel Vehicle, Gasoline engines are available.

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