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New GMC Sierra 2500HD Denali for Sale near O Fallon, IL

129 results
O Fallon, IL
2026 GMC Sierra 2500HD Denali Crew Cab 4WD Dave Sinclair Buick GMC

2026 GMC Sierra 2500HD

New car

$73,830

Saint Louis, MO
25 mi away
Year:
2026
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
401 hp 6.6L V8
Exterior color:
Sterling Metallic
Fuel type:
Gasoline
Interior color:
Jet Black Leather
Transmission:
Automatic
Mileage:
5
Stock number:
T260568
VIN:
1GT4URE72TF156431

Sponsored

2026 GMC Sierra 2500HD Denali Crew Cab 4WD

2026 GMC Sierra 2500HD

New car | MSRP $91,357

$85,548

Ellisville, MO
37 mi away
Year:
2026
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
470 hp 6.6L V8 Biodiesel
Exterior color:
Sterling Metallic
Fuel type:
Biodiesel
Interior color:
Jet Black Leather
Transmission:
Automatic
Mileage:
4
Stock number:
87087
VIN:
1GT4UREY6TF132139

Sponsored

2026 GMC Sierra 2500HD Denali Crew Cab 4WD

2026 GMC Sierra 2500HD

New car

$83,219

Saint Louis, MO
25 mi away
Year:
2026
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
470 hp 6.6L V8 Biodiesel
Exterior color:
Glacier White Tricoat
Fuel type:
Biodiesel
Interior color:
Jet Black Leather
Transmission:
Automatic
Mileage:
6
Stock number:
T260464
VIN:
1GT4UREY5TF144296

Sponsored

2025 GMC Sierra 2500HD Denali Crew Cab 4WD

2025 GMC Sierra 2500HD

New car | MSRP $88,440

$76,940

Red Bud, IL
28 mi away
Year:
2025
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
470 hp 6.6L V8 Biodiesel
Exterior color:
Gray
Fuel type:
Biodiesel
Interior color:
Black
Transmission:
Automatic
Mileage:
5
Stock number:
7862
VIN:
1GT4UREY0SF314031

2025 GMC Sierra 2500HD Denali Crew Cab 4WD

2025 GMC Sierra 2500HD

New car | MSRP $90,900

$78,900

Red Bud, IL
28 mi away
Year:
2025
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
470 hp 6.6L V8 Biodiesel
Exterior color:
White
Fuel type:
Biodiesel
Transmission:
Automatic
Mileage:
7
Stock number:
7865
VIN:
1GT4UREYXSF318684

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 2500HD

New car | MSRP $90,590

$81,590

Red Bud, IL
28 mi away
Year:
2026
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
470 hp 6.6L V8 Biodiesel
Exterior color:
Silver
Fuel type:
Biodiesel
Interior color:
Black
Transmission:
Automatic
Mileage:
5
Stock number:
7970
VIN:
1GT4UREY2TF157071

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 2500HD

New car | MSRP $90,095

$81,095

Red Bud, IL
28 mi away
Year:
2026
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
470 hp 6.6L V8 Biodiesel
Exterior color:
White
Fuel type:
Biodiesel
Interior color:
Black
Transmission:
Automatic
Mileage:
5
Stock number:
7965
VIN:
1GT4UREY6TF157171

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 2500HD

New car | MSRP $80,500

$74,365

Highland, IL
16 mi away
Year:
2026
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
401 hp 6.6L V8
Exterior color:
Summit White
Fuel type:
Gasoline
Interior color:
Black
Transmission:
Automatic
Stock number:
38762
VIN:
1GT4URE70TF114162

  1. Home
  2. / New Cars
  3. / GMC Sierra 2500HD
  4. / Denali
  5. / Illinois
  6. / O Fallon
Overview
FAQs
GMC introduced the luxurious Denali trim to its pickup catalog in the early 2000s and has expanded it to its heavy-duty truck like. The GMC Sierra 2500HD Denali is available only with four-wheel drive and can be had with a long or standard bed. No matter how it’s configured, the truck sports a crew cab body style. As a flagship trim of one of GMC’s most popular trucks, the 2500HD Denali gets the best features, an upscale interior, massive capability, and a heavy price tag to match.

GMC Sierra 2500HD Denali FAQs

What fuel types are available?

Diesel, Flex Fuel Vehicle, Biodiesel, Gasoline engines are available.

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