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  • Summit White 2026 GMC Sierra 2500 DenaliSummit White 2026 GMC Sierra 2500 DenaliSummit White 2026 GMC Sierra 2500 DenaliSummit White 2026 GMC Sierra 2500 DenaliSummit White 2026 GMC Sierra 2500 DenaliSummit White 2026 GMC Sierra 2500 Denali

    $83,962

    $2K
    Est. $1,570/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (23 mi)

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  • Glacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 Denali

    $79,018

    $1K

    MSRP $90,020

    Est. $1,478/mo

    Dave Sinclair Buick GMC

    4.9
    Check Availability
    Saint Louis, MO (3 mi)
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  • Glacier White 2026 GMC Sierra 2500 DenaliGlacier White 2026 GMC Sierra 2500 DenaliGlacier White 2026 GMC Sierra 2500 DenaliGlacier White 2026 GMC Sierra 2500 DenaliGlacier White 2026 GMC Sierra 2500 DenaliGlacier White 2026 GMC Sierra 2500 Denali

    Not Priced

    MSRP $94,220

    Quality Buick GMC Cadillac

    4.1
    Check Availability
    Alton, IL (28 mi)
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  • Onyx Black 2026 GMC Sierra 2500 DenaliOnyx Black 2026 GMC Sierra 2500 DenaliOnyx Black 2026 GMC Sierra 2500 DenaliOnyx Black 2026 GMC Sierra 2500 DenaliOnyx Black 2026 GMC Sierra 2500 DenaliOnyx Black 2026 GMC Sierra 2500 Denali

    $86,154

    MSRP $95,154

    Est. $1,611/mo

    Suntrup Buick GMC

    3.9
    Check Availability
    Saint Peters, MO (21 mi)
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  • Onyx Black 2026 GMC Sierra 2500 DenaliOnyx Black 2026 GMC Sierra 2500 DenaliOnyx Black 2026 GMC Sierra 2500 DenaliOnyx Black 2026 GMC Sierra 2500 DenaliOnyx Black 2026 GMC Sierra 2500 DenaliOnyx Black 2026 GMC Sierra 2500 Denali

    Not Priced

    MSRP $94,215

    Quality Buick GMC Cadillac

    4.1
    Check Availability
    Alton, IL (28 mi)
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  • Sterling Metallic 2026 GMC Sierra 2500 DenaliSterling Metallic 2026 GMC Sierra 2500 DenaliSterling Metallic 2026 GMC Sierra 2500 DenaliSterling Metallic 2026 GMC Sierra 2500 DenaliSterling Metallic 2026 GMC Sierra 2500 DenaliSterling Metallic 2026 GMC Sierra 2500 Denali

    $81,670

    $1K
    Est. $1,527/mo

    Lou Fusz Buick GMC

    4.5
    Check Availability
    St. Louis, MO (11 mi)
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  • Glacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 Denali

    $87,011

    $349

    MSRP $92,680

    Est. $1,627/mo

    Sapaugh GM Country

    4.8
    Check Availability
    Herculaneum, MO (21 mi)
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  • Summit White 2026 GMC Sierra 2500 DenaliSummit White 2026 GMC Sierra 2500 DenaliSummit White 2026 GMC Sierra 2500 DenaliSummit White 2026 GMC Sierra 2500 DenaliSummit White 2026 GMC Sierra 2500 DenaliSummit White 2026 GMC Sierra 2500 Denali

    $82,315

    $1K

    MSRP $91,315

    Est. $1,539/mo

    Suntrup Buick GMC

    3.9
    Check Availability
    Saint Peters, MO (21 mi)
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  • Metallic 2026 GMC Sierra 2500 DenaliMetallic 2026 GMC Sierra 2500 DenaliMetallic 2026 GMC Sierra 2500 DenaliMetallic 2026 GMC Sierra 2500 DenaliMetallic 2026 GMC Sierra 2500 DenaliMetallic 2026 GMC Sierra 2500 Denali

    $75,274

    $1K
    Est. $1,408/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (23 mi)
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  • Titanium Rush Metallic 2026 GMC Sierra 2500 DenaliTitanium Rush Metallic 2026 GMC Sierra 2500 DenaliTitanium Rush Metallic 2026 GMC Sierra 2500 DenaliTitanium Rush Metallic 2026 GMC Sierra 2500 DenaliTitanium Rush Metallic 2026 GMC Sierra 2500 DenaliTitanium Rush Metallic 2026 GMC Sierra 2500 Denali

    $82,410

    MSRP $91,410

    Est. $1,541/mo

    Suntrup Buick GMC

    3.9
    Check Availability
    Saint Peters, MO (21 mi)
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  • Sterling 2026 GMC Sierra 2500 DenaliSterling 2026 GMC Sierra 2500 DenaliSterling 2026 GMC Sierra 2500 DenaliSterling 2026 GMC Sierra 2500 DenaliSterling 2026 GMC Sierra 2500 DenaliSterling 2026 GMC Sierra 2500 Denali

    $84,414

    $1K
    Est. $1,578/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (23 mi)
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  • Downpour Metallic 2026 GMC Sierra 2500 DenaliDownpour Metallic 2026 GMC Sierra 2500 DenaliDownpour Metallic 2026 GMC Sierra 2500 DenaliDownpour Metallic 2026 GMC Sierra 2500 DenaliDownpour Metallic 2026 GMC Sierra 2500 DenaliDownpour Metallic 2026 GMC Sierra 2500 Denali

    $76,396

    MSRP $85,995

    Est. $1,429/mo

    Dave Sinclair Buick GMC

    4.9
    Check Availability
    Saint Louis, MO (3 mi)
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  • Glacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 Denali

    $80,464

    $1K
    Est. $1,505/mo

    Lou Fusz Buick GMC

    4.5
    Check Availability
    St. Louis, MO (11 mi)
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  • Glacier White 2026 GMC Sierra 2500 DenaliGlacier White 2026 GMC Sierra 2500 DenaliGlacier White 2026 GMC Sierra 2500 DenaliGlacier White 2026 GMC Sierra 2500 DenaliGlacier White 2026 GMC Sierra 2500 DenaliGlacier White 2026 GMC Sierra 2500 Denali

    $121,399

    MSRP $122,399

    Est. $2,270/mo

    Suntrup Buick GMC

    3.9
    Check Availability
    Saint Peters, MO (21 mi)
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  • Titanium Rush Metallic 2026 GMC Sierra 2500 DenaliTitanium Rush Metallic 2026 GMC Sierra 2500 DenaliTitanium Rush Metallic 2026 GMC Sierra 2500 DenaliTitanium Rush Metallic 2026 GMC Sierra 2500 DenaliTitanium Rush Metallic 2026 GMC Sierra 2500 DenaliTitanium Rush Metallic 2026 GMC Sierra 2500 Denali

    $83,995

    $1K
    Est. $1,571/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (23 mi)
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  • Sterling Metallic 2026 GMC Sierra 2500 DenaliSterling Metallic 2026 GMC Sierra 2500 DenaliSterling Metallic 2026 GMC Sierra 2500 DenaliSterling Metallic 2026 GMC Sierra 2500 DenaliSterling Metallic 2026 GMC Sierra 2500 DenaliSterling Metallic 2026 GMC Sierra 2500 Denali

    $79,924

    $1K
    Est. $1,495/mo

    Lou Fusz Buick GMC

    4.5
    Check Availability
    St. Louis, MO (11 mi)
    Quick view
  • Metallic 2026 GMC Sierra 2500 DenaliMetallic 2026 GMC Sierra 2500 DenaliMetallic 2026 GMC Sierra 2500 DenaliMetallic 2026 GMC Sierra 2500 DenaliMetallic 2026 GMC Sierra 2500 DenaliMetallic 2026 GMC Sierra 2500 Denali

    $85,645

    $1K
    Est. $1,601/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (23 mi)
    Quick view
  • Glacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 Denali

    $79,018

    $1K

    MSRP $90,020

    Est. $1,478/mo

    Dave Sinclair Buick GMC

    4.9
    Check Availability
    Saint Louis, MO (3 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 2500 DenaliSterling Metallic 2026 GMC Sierra 2500 DenaliSterling Metallic 2026 GMC Sierra 2500 DenaliSterling Metallic 2026 GMC Sierra 2500 DenaliSterling Metallic 2026 GMC Sierra 2500 DenaliSterling Metallic 2026 GMC Sierra 2500 Denali

    $79,924

    $1K
    Est. $1,495/mo

    Lou Fusz Buick GMC

    4.5
    Check Availability
    St. Louis, MO (11 mi)
    Quick view
  • Summit White 2026 GMC Sierra 2500 DenaliSummit White 2026 GMC Sierra 2500 DenaliSummit White 2026 GMC Sierra 2500 DenaliSummit White 2026 GMC Sierra 2500 DenaliSummit White 2026 GMC Sierra 2500 DenaliSummit White 2026 GMC Sierra 2500 Denali

    $74,821

    $1K
    Est. $1,399/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (23 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 2500 DenaliOnyx Black 2026 GMC Sierra 2500 DenaliOnyx Black 2026 GMC Sierra 2500 DenaliOnyx Black 2026 GMC Sierra 2500 DenaliOnyx Black 2026 GMC Sierra 2500 DenaliOnyx Black 2026 GMC Sierra 2500 Denali

    $81,670

    $1K
    Est. $1,527/mo

    Lou Fusz Buick GMC

    4.5
    Check Availability
    St. Louis, MO (11 mi)
    Quick view
  • Glacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 DenaliGlacier White Tricoat 2026 GMC Sierra 2500 Denali

    $79,464

    $1K

    MSRP $90,515

    Est. $1,486/mo

    Dave Sinclair Buick GMC

    4.9
    Check Availability
    Saint Louis, MO (3 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 2500 DenaliOnyx Black 2026 GMC Sierra 2500 DenaliOnyx Black 2026 GMC Sierra 2500 DenaliOnyx Black 2026 GMC Sierra 2500 DenaliOnyx Black 2026 GMC Sierra 2500 DenaliOnyx Black 2026 GMC Sierra 2500 Denali

    $85,899

    MSRP $90,909

    Est. $1,606/mo

    Bill Kay Buick GMC

    4.4
    Check Availability
    $513 delivery from Downers Grove, IL (257 mi)
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  • Downpour Metallic 2026 GMC Sierra 2500 DenaliDownpour Metallic 2026 GMC Sierra 2500 DenaliDownpour Metallic 2026 GMC Sierra 2500 DenaliDownpour Metallic 2026 GMC Sierra 2500 DenaliDownpour Metallic 2026 GMC Sierra 2500 DenaliDownpour Metallic 2026 GMC Sierra 2500 Denali

    $81,500

    MSRP $91,410

    Est. $1,524/mo

    Woody Buick GMC of Gurnee

    5.0
    Check Availability
    $441 delivery from Gurnee, IL (294 mi)
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About the 2026 GMC Sierra 2500 Denali

Basics

Denali shown.

Seating
5
Door count
4
Drivetrain
Four Wheel Drive
Combined MPG
0
Transmission
10-Speed A/T
Engine
470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)
Side view of the 2026 GMC Sierra 2500 Denali
FAQs

How much does the 2026 GMC Sierra 2500 Denali cost?

The 2026 GMC Sierra 2500 Denali price depends on optional features. Prices typically start at $75,200.

What are some similar vehicles and competitors of the 2026 GMC Sierra 2500 Denali?

The 2026 GMC Sierra 2500 Denali compares to and/or competes against the following vehicles:


Trims

Denali (2 styles)

Style
4WD Crew Cab 159" Denali 4WD Crew Cab 172" Denali
Inventory price
Starting at $75,200 Starting at $75,400
Combined MPG
0 0
Engine
470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)
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Best match Lowest price Highest price Lowest mileage Highest mileage Nearest location Best deal Newest year Oldest year Newest listed Oldest listed

2026 GMC Sierra 2500 Denali by city

GMC Sierra 2500 trims