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  • Summit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 Denali

    $89,140

    Est. $1,667/mo

    Laura Buick GMC

    4.5
    Check Availability
    Collinsville, IL (12 mi)

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  • Summit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 Denali

    $83,493

    MSRP $91,070

    Est. $1,561/mo

    Dave Sinclair Buick GMC

    4.9
    Check Availability
    Saint Louis, MO (18 mi)
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  • Onyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 Denali

    $96,656

    MSRP $105,535

    Est. $1,807/mo

    Dave Sinclair Buick GMC

    4.9
    Check Availability
    Saint Louis, MO (18 mi)
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  • Summit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 Denali

    $88,965

    MSRP $95,465

    Est. $1,664/mo

    Suntrup Buick GMC

    4.0
    Check Availability
    Saint Peters, MO (21 mi)
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  • Onyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 Denali

    $87,033

    MSRP $94,960

    Est. $1,627/mo

    Dave Sinclair Buick GMC

    4.9
    Check Availability
    Saint Louis, MO (18 mi)
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  • Metallic 2026 GMC Sierra 3500 DenaliMetallic 2026 GMC Sierra 3500 DenaliMetallic 2026 GMC Sierra 3500 DenaliMetallic 2026 GMC Sierra 3500 DenaliMetallic 2026 GMC Sierra 3500 DenaliMetallic 2026 GMC Sierra 3500 Denali

    $86,958

    Est. $1,626/mo

    Laura Buick GMC

    4.5
    Check Availability
    Collinsville, IL (12 mi)
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  • Titanium Rush Metallic 2026 GMC Sierra 3500 DenaliTitanium Rush Metallic 2026 GMC Sierra 3500 DenaliTitanium Rush Metallic 2026 GMC Sierra 3500 DenaliTitanium Rush Metallic 2026 GMC Sierra 3500 DenaliTitanium Rush Metallic 2026 GMC Sierra 3500 DenaliTitanium Rush Metallic 2026 GMC Sierra 3500 Denali

    $86,995

    Est. $1,627/mo

    Laura Buick GMC

    4.5
    Check Availability
    Collinsville, IL (12 mi)
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  • Metallic 2026 GMC Sierra 3500 DenaliMetallic 2026 GMC Sierra 3500 DenaliMetallic 2026 GMC Sierra 3500 DenaliMetallic 2026 GMC Sierra 3500 DenaliMetallic 2026 GMC Sierra 3500 DenaliMetallic 2026 GMC Sierra 3500 Denali

    $86,770

    Est. $1,623/mo

    Laura Buick GMC

    4.5
    Check Availability
    Collinsville, IL (12 mi)
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  • Titanium Rush Metallic 2026 GMC Sierra 3500 DenaliTitanium Rush Metallic 2026 GMC Sierra 3500 DenaliTitanium Rush Metallic 2026 GMC Sierra 3500 DenaliTitanium Rush Metallic 2026 GMC Sierra 3500 DenaliTitanium Rush Metallic 2026 GMC Sierra 3500 DenaliTitanium Rush Metallic 2026 GMC Sierra 3500 Denali

    $86,770

    Est. $1,623/mo

    Laura Buick GMC

    4.5
    Check Availability
    Collinsville, IL (12 mi)
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  • Sterling 2026 GMC Sierra 3500 DenaliSterling 2026 GMC Sierra 3500 DenaliSterling 2026 GMC Sierra 3500 DenaliSterling 2026 GMC Sierra 3500 DenaliSterling 2026 GMC Sierra 3500 DenaliSterling 2026 GMC Sierra 3500 Denali

    $86,770

    Est. $1,623/mo

    Laura Buick GMC

    4.5
    Check Availability
    Collinsville, IL (12 mi)
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  • Metallic 2026 GMC Sierra 3500 DenaliMetallic 2026 GMC Sierra 3500 DenaliMetallic 2026 GMC Sierra 3500 DenaliMetallic 2026 GMC Sierra 3500 DenaliMetallic 2026 GMC Sierra 3500 DenaliMetallic 2026 GMC Sierra 3500 Denali

    $89,593

    Est. $1,675/mo

    Laura Buick GMC

    4.5
    Check Availability
    Collinsville, IL (12 mi)
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  • Titanium Rush Metallic 2026 GMC Sierra 3500 DenaliTitanium Rush Metallic 2026 GMC Sierra 3500 DenaliTitanium Rush Metallic 2026 GMC Sierra 3500 DenaliTitanium Rush Metallic 2026 GMC Sierra 3500 DenaliTitanium Rush Metallic 2026 GMC Sierra 3500 DenaliTitanium Rush Metallic 2026 GMC Sierra 3500 Denali

    $86,958

    Est. $1,626/mo

    Laura Buick GMC

    4.5
    Check Availability
    Collinsville, IL (12 mi)
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  • Onyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 Denali

    $89,593

    Est. $1,675/mo

    Laura Buick GMC

    4.5
    Check Availability
    Collinsville, IL (12 mi)
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  • Onyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 Denali

    $86,958

    Est. $1,626/mo

    Laura Buick GMC

    4.5
    Check Availability
    Collinsville, IL (12 mi)
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  • Onyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 Denali

    $89,495

    Est. $1,673/mo

    Laura Buick GMC

    4.5
    Check Availability
    Collinsville, IL (12 mi)
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  • Onyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 Denali

    $89,495

    Est. $1,673/mo

    Laura Buick GMC

    4.5
    Check Availability
    Collinsville, IL (12 mi)
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  • Onyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 Denali

    $86,770

    Est. $1,623/mo

    Laura Buick GMC

    4.5
    Check Availability
    Collinsville, IL (12 mi)
    Quick view
  • Summit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 Denali

    $86,317

    Est. $1,614/mo

    Laura Buick GMC

    4.5
    Check Availability
    Collinsville, IL (12 mi)
    Quick view
  • Summit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 Denali

    $87,752

    Est. $1,641/mo

    Laura Buick GMC

    4.5
    Check Availability
    Collinsville, IL (12 mi)
    Quick view
  • Glacier White 2026 GMC Sierra 3500 DenaliGlacier White 2026 GMC Sierra 3500 DenaliGlacier White 2026 GMC Sierra 3500 DenaliGlacier White 2026 GMC Sierra 3500 DenaliGlacier White 2026 GMC Sierra 3500 DenaliGlacier White 2026 GMC Sierra 3500 Denali

    $90,142

    Est. $1,686/mo

    Laura Buick GMC

    4.5
    Check Availability
    Collinsville, IL (12 mi)
    Quick view
  • Glacier White 2026 GMC Sierra 3500 DenaliGlacier White 2026 GMC Sierra 3500 DenaliGlacier White 2026 GMC Sierra 3500 DenaliGlacier White 2026 GMC Sierra 3500 DenaliGlacier White 2026 GMC Sierra 3500 DenaliGlacier White 2026 GMC Sierra 3500 Denali

    $90,142

    Est. $1,686/mo

    Laura Buick GMC

    4.5
    Check Availability
    Collinsville, IL (12 mi)
    Quick view
  • Summit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 DenaliSummit White 2026 GMC Sierra 3500 Denali

    $86,505

    Est. $1,618/mo

    Laura Buick GMC

    4.5
    Check Availability
    Collinsville, IL (12 mi)
    Quick view
  • Glacier White Tricoat 2026 GMC Sierra 3500 DenaliGlacier White Tricoat 2026 GMC Sierra 3500 DenaliGlacier White Tricoat 2026 GMC Sierra 3500 DenaliGlacier White Tricoat 2026 GMC Sierra 3500 DenaliGlacier White Tricoat 2026 GMC Sierra 3500 DenaliGlacier White Tricoat 2026 GMC Sierra 3500 Denali

    $92,925

    MSRP $101,435

    Est. $1,738/mo

    Dave Sinclair Buick GMC

    4.9
    Check Availability
    Saint Louis, MO (18 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 Denali

    $86,673

    MSRP $94,565

    Est. $1,621/mo

    Dave Sinclair Buick GMC

    4.9
    Check Availability
    Saint Louis, MO (18 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 3500 DenaliSterling Metallic 2026 GMC Sierra 3500 DenaliSterling Metallic 2026 GMC Sierra 3500 DenaliSterling Metallic 2026 GMC Sierra 3500 DenaliSterling Metallic 2026 GMC Sierra 3500 DenaliSterling Metallic 2026 GMC Sierra 3500 Denali

    $94,412

    MSRP $101,785

    Est. $1,765/mo

    Woody Buick GMC of Gurnee

    5.0
    Check Availability
    $416 delivery from Gurnee, IL (278 mi)
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  • Onyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 DenaliOnyx Black 2026 GMC Sierra 3500 Denali

    $97,912

    MSRP $105,885

    Est. $1,831/mo

    Woody Buick GMC Naperville

    4.9
    Check Availability
    $299 delivery from Naperville, IL (235 mi)
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About the 2026 GMC Sierra 3500 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 3500 Denali
FAQs

How much does the 2026 GMC Sierra 3500 Denali cost?

The 2026 GMC Sierra 3500 Denali price depends on optional features. Prices typically start at $76,300.

What are some similar vehicles and competitors of the 2026 GMC Sierra 3500 Denali?

The 2026 GMC Sierra 3500 Denali compares to and/or competes against the following vehicles:


Is the 2026 GMC Sierra 3500 Denali reliable?

The 2026 GMC Sierra 3500 has an average reliability rating of 4.5 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2026 Sierra 3500 owners.

Ratings (2 reviews)

50% of drivers recommend this car

Rating breakdown (out of 5):
Comfort
4.0
Interior
4.0
Performance
4.5
Value
3.5
Exterior
5.0
Reliability
4.5
Trims

Denali (2 styles)

Style
4WD Crew Cab 159" Denali 4WD Crew Cab 172" Denali
Inventory price
Starting at $76,300 Starting at $76,500
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 3500 Denali by city

GMC Sierra 3500 trims