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  • Summit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLT

    $78,995

    Est. $1,477/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (19 mi)

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  • Dune 2026 GMC Sierra 3500 AT4Dune 2026 GMC Sierra 3500 AT4Dune 2026 GMC Sierra 3500 AT4Dune 2026 GMC Sierra 3500 AT4Dune 2026 GMC Sierra 3500 AT4Dune 2026 GMC Sierra 3500 AT4

    $84,995

    Est. $1,589/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (19 mi)
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  • Summit White 2026 GMC Sierra 3500 ProSummit White 2026 GMC Sierra 3500 ProSummit White 2026 GMC Sierra 3500 ProSummit White 2026 GMC Sierra 3500 ProSummit White 2026 GMC Sierra 3500 ProSummit White 2026 GMC Sierra 3500 Pro

    $78,032

    $1K
    Est. $1,459/mo

    Lou Fusz Buick GMC

    4.5
    Check Availability
    St. Louis, MO (5 mi)
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  • Sterling Metallic 2026 GMC Sierra 3500 SLESterling Metallic 2026 GMC Sierra 3500 SLESterling Metallic 2026 GMC Sierra 3500 SLESterling Metallic 2026 GMC Sierra 3500 SLESterling Metallic 2026 GMC Sierra 3500 SLESterling Metallic 2026 GMC Sierra 3500 SLE

    $70,507

    MSRP $78,030

    Est. $1,318/mo

    Dave Sinclair Buick GMC

    4.9
    Check Availability
    Saint Louis, MO (16 mi)
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  • Summit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLT

    $72,250

    MSRP $77,750

    Est. $1,351/mo

    Suntrup Buick GMC

    3.7
    Check Availability
    Saint Peters, MO (14 mi)
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  • Titanium Rush Metallic 2026 GMC Sierra 3500 SLTTitanium Rush Metallic 2026 GMC Sierra 3500 SLTTitanium Rush Metallic 2026 GMC Sierra 3500 SLTTitanium Rush Metallic 2026 GMC Sierra 3500 SLTTitanium Rush Metallic 2026 GMC Sierra 3500 SLTTitanium Rush Metallic 2026 GMC Sierra 3500 SLT

    $79,493

    Est. $1,486/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (19 mi)
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  • Volcanic Red 2026 GMC Sierra 3500 AT4Volcanic Red 2026 GMC Sierra 3500 AT4Volcanic Red 2026 GMC Sierra 3500 AT4Volcanic Red 2026 GMC Sierra 3500 AT4Volcanic Red 2026 GMC Sierra 3500 AT4Volcanic Red 2026 GMC Sierra 3500 AT4

    $85,234

    Est. $1,594/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (19 mi)
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  • Summit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLT

    $68,091

    MSRP $75,375

    Est. $1,273/mo

    Dave Sinclair Buick GMC

    4.9
    Check Availability
    Saint Louis, MO (16 mi)
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  • Onyx Black 2026 GMC Sierra 3500 Denali UltimateOnyx Black 2026 GMC Sierra 3500 Denali UltimateOnyx Black 2026 GMC Sierra 3500 Denali UltimateOnyx Black 2026 GMC Sierra 3500 Denali UltimateOnyx Black 2026 GMC Sierra 3500 Denali UltimateOnyx Black 2026 GMC Sierra 3500 Denali Ultimate

    $107,188

    Est. $2,004/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (19 mi)
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  • Summit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLTSummit White 2026 GMC Sierra 3500 SLT

    $79,951

    Est. $1,495/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (19 mi)
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  • Sterling 2026 GMC Sierra 3500 AT4Sterling 2026 GMC Sierra 3500 AT4Sterling 2026 GMC Sierra 3500 AT4Sterling 2026 GMC Sierra 3500 AT4Sterling 2026 GMC Sierra 3500 AT4Sterling 2026 GMC Sierra 3500 AT4

    $79,495

    Est. $1,486/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (19 mi)
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  • Titanium Rush Metallic 2026 GMC Sierra 3500 SLTTitanium Rush Metallic 2026 GMC Sierra 3500 SLTTitanium Rush Metallic 2026 GMC Sierra 3500 SLTTitanium Rush Metallic 2026 GMC Sierra 3500 SLTTitanium Rush Metallic 2026 GMC Sierra 3500 SLTTitanium Rush Metallic 2026 GMC Sierra 3500 SLT

    $81,403

    Est. $1,522/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (19 mi)
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  • Sterling 2026 GMC Sierra 3500 SLTSterling 2026 GMC Sierra 3500 SLTSterling 2026 GMC Sierra 3500 SLTSterling 2026 GMC Sierra 3500 SLTSterling 2026 GMC Sierra 3500 SLTSterling 2026 GMC Sierra 3500 SLT

    $80,284

    Est. $1,501/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (19 mi)
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  • Onyx Black 2026 GMC Sierra 3500 SLEOnyx Black 2026 GMC Sierra 3500 SLEOnyx Black 2026 GMC Sierra 3500 SLEOnyx Black 2026 GMC Sierra 3500 SLEOnyx Black 2026 GMC Sierra 3500 SLEOnyx Black 2026 GMC Sierra 3500 SLE

    $73,209

    $3K
    Est. $1,369/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (19 mi)
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  • Onyx Black 2026 GMC Sierra 3500 SLTOnyx Black 2026 GMC Sierra 3500 SLTOnyx Black 2026 GMC Sierra 3500 SLTOnyx Black 2026 GMC Sierra 3500 SLTOnyx Black 2026 GMC Sierra 3500 SLTOnyx Black 2026 GMC Sierra 3500 SLT

    $68,938

    Est. $1,289/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (19 mi)
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  • Onyx Black 2026 GMC Sierra 3500 SLTOnyx Black 2026 GMC Sierra 3500 SLTOnyx Black 2026 GMC Sierra 3500 SLTOnyx Black 2026 GMC Sierra 3500 SLTOnyx Black 2026 GMC Sierra 3500 SLTOnyx Black 2026 GMC Sierra 3500 SLT

    $75,495

    Est. $1,412/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (19 mi)
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  • Sterling 2026 GMC Sierra 3500 ProSterling 2026 GMC Sierra 3500 ProSterling 2026 GMC Sierra 3500 ProSterling 2026 GMC Sierra 3500 ProSterling 2026 GMC Sierra 3500 ProSterling 2026 GMC Sierra 3500 Pro

    $57,119

    Est. $1,068/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (19 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

    $84,429

    Est. $1,579/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (19 mi)
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  • Dune 2026 GMC Sierra 3500 AT4Dune 2026 GMC Sierra 3500 AT4Dune 2026 GMC Sierra 3500 AT4Dune 2026 GMC Sierra 3500 AT4Dune 2026 GMC Sierra 3500 AT4Dune 2026 GMC Sierra 3500 AT4

    $84,909

    Est. $1,588/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (19 mi)
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  • Summit White 2026 GMC Sierra 3500 SLESummit White 2026 GMC Sierra 3500 SLESummit White 2026 GMC Sierra 3500 SLESummit White 2026 GMC Sierra 3500 SLESummit White 2026 GMC Sierra 3500 SLESummit White 2026 GMC Sierra 3500 SLE

    $69,632

    $3K
    Est. $1,302/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (19 mi)
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  • Volcanic Red 2026 GMC Sierra 3500 SLTVolcanic Red 2026 GMC Sierra 3500 SLTVolcanic Red 2026 GMC Sierra 3500 SLTVolcanic Red 2026 GMC Sierra 3500 SLTVolcanic Red 2026 GMC Sierra 3500 SLTVolcanic Red 2026 GMC Sierra 3500 SLT

    $80,422

    Est. $1,504/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (19 mi)
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  • Onyx Black 2026 GMC Sierra 3500 SLEOnyx Black 2026 GMC Sierra 3500 SLEOnyx Black 2026 GMC Sierra 3500 SLEOnyx Black 2026 GMC Sierra 3500 SLEOnyx Black 2026 GMC Sierra 3500 SLEOnyx Black 2026 GMC Sierra 3500 SLE

    $69,995

    Est. $1,309/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (19 mi)
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  • Onyx Black 2026 GMC Sierra 3500 Denali UltimateOnyx Black 2026 GMC Sierra 3500 Denali UltimateOnyx Black 2026 GMC Sierra 3500 Denali UltimateOnyx Black 2026 GMC Sierra 3500 Denali UltimateOnyx Black 2026 GMC Sierra 3500 Denali UltimateOnyx Black 2026 GMC Sierra 3500 Denali Ultimate

    $97,833

    Est. $1,829/mo

    Laura Buick GMC

    4.6
    Check Availability
    Collinsville, IL (19 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

    $74,000

    MSRP $84,425

    Est. $1,384/mo

    Woody Buick GMC of Gurnee

    5.0
    Check Availability
    $422 delivery from Gurnee, IL (282 mi)
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  • Summit White 2026 GMC Sierra 3500 Denali

    $94,545

    MSRP $95,045

    Est. $1,768/mo

    Woody Buick GMC Naperville

    4.9
    Check Availability
    $299 delivery from Naperville, IL (238 mi)
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About the 2026 GMC Sierra 3500

Basics

Pro shown (base trim).

Seating
2
Door count
2
Drivetrain
Rear-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
FAQs

How much does the 2026 GMC Sierra 3500 cost?

The 2026 GMC Sierra 3500 price depends on trim level and optional features. Prices typically start at $48,200 and go as high as $97,800 for fully loaded models.

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

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


Trims

AT4 (2 styles)

Style
4WD Crew Cab 159" AT4 4WD Crew Cab 172" AT4
Inventory price
Starting at $73,400 Starting at $73,600
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)

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)

Denali Ultimate (2 styles)

Style
4WD Crew Cab 172" Denali Ultimate 4WD Crew Cab 159" Denali Ultimate
Inventory price
Starting at $97,800 Starting at $97,600
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)

Pro (8 styles)

Style
4WD Double Cab 162" Pro 2WD Double Cab 162" Pro 2WD Crew Cab 172" Pro 4WD Crew Cab 172" Pro 2WD Crew Cab 159" Pro 4WD Crew Cab 159" Pro 4WD Reg Cab 142" Pro 2WD Reg Cab 142" Pro
Inventory price
Starting at $53,100 Starting at $50,300 Starting at $52,100 Starting at $54,900 Starting at $51,900 Starting at $54,700 Starting at $51,000 Starting at $48,200
Combined MPG
0 0 0 0 0 0 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) 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)

SLE (4 styles)

Style
4WD Reg Cab 142" SLE 4WD Double Cab 162" SLE 4WD Crew Cab 172" SLE 4WD Crew Cab 159" SLE
Inventory price
Starting at $55,200 Starting at $57,500 Starting at $59,300 Starting at $59,100
Combined MPG
0 0 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) 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)

SLT (2 styles)

Style
4WD Crew Cab 172" SLT 4WD Crew Cab 159" SLT
Inventory price
Starting at $66,600 Starting at $66,400
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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