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  • Glacier White 2026 GMC Sierra 3500 Denali UltimateGlacier White 2026 GMC Sierra 3500 Denali UltimateGlacier White 2026 GMC Sierra 3500 Denali UltimateGlacier White 2026 GMC Sierra 3500 Denali UltimateGlacier White 2026 GMC Sierra 3500 Denali UltimateGlacier White 2026 GMC Sierra 3500 Denali Ultimate

    $95,554

    Est. $1,768/mo

    Ross Downing GMC Cadillac

    4.8
    Check Availability
    Hammond, LA (10 mi)

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  • Summit White 2026 GMC Sierra 3500 Denali UltimateSummit White 2026 GMC Sierra 3500 Denali UltimateSummit White 2026 GMC Sierra 3500 Denali UltimateSummit White 2026 GMC Sierra 3500 Denali UltimateSummit White 2026 GMC Sierra 3500 Denali UltimateSummit White 2026 GMC Sierra 3500 Denali Ultimate

    $93,580

    Est. $1,731/mo

    Ross Downing GMC Cadillac

    4.8
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    Hammond, LA (10 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

    $88,020

    MSRP $88,020

    Est. $1,628/mo

    Rainbow Northshore GMC

    4.7
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    Covington, LA (15 mi)
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  • Sterling 2026 GMC Sierra 3500 Denali UltimateSterling 2026 GMC Sierra 3500 Denali UltimateSterling 2026 GMC Sierra 3500 Denali UltimateSterling 2026 GMC Sierra 3500 Denali UltimateSterling 2026 GMC Sierra 3500 Denali UltimateSterling 2026 GMC Sierra 3500 Denali Ultimate

    $102,560

    MSRP $102,560

    Est. $1,897/mo

    Rainbow Northshore GMC

    4.7
    Check Availability
    Covington, LA (15 mi)
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  • 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

    $93,860

    MSRP $93,860

    Est. $1,736/mo

    Rainbow Northshore GMC

    4.7
    Check Availability
    Covington, LA (15 mi)
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  • Dune 2026 GMC Sierra 3500 Pro

    $73,165

    MSRP $73,165

    Est. $1,353/mo

    Rainbow Northshore GMC

    4.7
    Check Availability
    Covington, LA (15 mi)
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  • Metallic 2026 GMC Sierra 3500 Denali

    $96,460

    MSRP $96,460

    Est. $1,784/mo

    Rainbow Northshore GMC

    4.7
    Check Availability
    Covington, LA (15 mi)
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  • Summit White 2026 GMC Sierra 3500 Denali UltimateSummit White 2026 GMC Sierra 3500 Denali UltimateSummit White 2026 GMC Sierra 3500 Denali UltimateSummit White 2026 GMC Sierra 3500 Denali UltimateSummit White 2026 GMC Sierra 3500 Denali UltimateSummit White 2026 GMC Sierra 3500 Denali Ultimate

    $95,080

    Est. $1,759/mo

    Ross Downing GMC Cadillac

    4.8
    Check Availability
    Hammond, LA (10 mi)

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  • Metallic 2026 GMC Sierra 3500 Denali Ultimate

    $101,565

    MSRP $101,565

    Est. $1,879/mo

    Rainbow Northshore GMC

    4.7
    Check Availability
    Covington, LA (15 mi)
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  • Glacier White 2026 GMC Sierra 3500 Denali

    $97,060

    MSRP $97,060

    Est. $1,795/mo

    Rainbow Northshore GMC

    4.7
    Check Availability
    Covington, LA (15 mi)
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  • Onyx Black 2026 GMC Sierra 3500 Denali

    $96,460

    MSRP $96,460

    Est. $1,784/mo

    Rainbow Northshore GMC

    4.7
    Check Availability
    Covington, LA (15 mi)
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  • Onyx Black 2026 GMC Sierra 3500 Denali Ultimate

    $102,560

    MSRP $102,560

    Est. $1,897/mo

    Rainbow Northshore GMC

    4.7
    Check Availability
    Covington, LA (15 mi)
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  • Metallic 2026 GMC Sierra 3500 Denali Ultimate

    $105,535

    MSRP $105,535

    Est. $1,952/mo

    Rainbow Northshore GMC

    4.7
    Check Availability
    Covington, LA (15 mi)
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  • Onyx Black 2026 GMC Sierra 3500 SLT

    $87,870

    MSRP $87,870

    Est. $1,625/mo

    Rainbow Northshore GMC

    4.7
    Check Availability
    Covington, LA (15 mi)
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  • Summit White 2026 GMC Sierra 3500 Pro

    $72,670

    MSRP $72,670

    Est. $1,344/mo

    Rainbow Northshore GMC

    4.7
    Check Availability
    Covington, LA (15 mi)
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  • Summit White 2026 GMC Sierra 3500 Pro

    $72,670

    MSRP $72,670

    Est. $1,344/mo

    Rainbow Northshore GMC

    4.7
    Check Availability
    Covington, LA (15 mi)
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  • Onyx Black 2026 GMC Sierra 3500 Pro

    $73,165

    MSRP $73,165

    Est. $1,353/mo

    Rainbow Northshore GMC

    4.7
    Check Availability
    Covington, LA (15 mi)
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  • Sterling 2026 GMC Sierra 3500 Pro

    $73,165

    MSRP $73,165

    Est. $1,353/mo

    Rainbow Northshore GMC

    4.7
    Check Availability
    Covington, LA (15 mi)
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  • $96,460

    MSRP $96,460

    Est. $1,784/mo

    Rainbow Northshore GMC

    4.7
    Check Availability
    Covington, LA (15 mi)
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  • White 2026 GMC Sierra 3500 DenaliWhite 2026 GMC Sierra 3500 DenaliWhite 2026 GMC Sierra 3500 DenaliWhite 2026 GMC Sierra 3500 DenaliWhite 2026 GMC Sierra 3500 DenaliWhite 2026 GMC Sierra 3500 Denali

    $97,184

    MSRP $97,959

    Est. $1,798/mo

    Group 1 Buick GMC South

    4.6
    Check Availability
    Free delivery from Houston, TX (299 mi)
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  • Gray 2026 GMC Sierra 3500 DenaliGray 2026 GMC Sierra 3500 DenaliGray 2026 GMC Sierra 3500 DenaliGray 2026 GMC Sierra 3500 DenaliGray 2026 GMC Sierra 3500 DenaliGray 2026 GMC Sierra 3500 Denali

    $97,679

    MSRP $98,454

    Est. $1,807/mo

    Group 1 Buick GMC South

    4.6
    Check Availability
    Free delivery from Houston, TX (299 mi)
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  • Summit White 2026 GMC Sierra 3500 BaseSummit White 2026 GMC Sierra 3500 BaseSummit White 2026 GMC Sierra 3500 BaseSummit White 2026 GMC Sierra 3500 BaseSummit White 2026 GMC Sierra 3500 BaseSummit White 2026 GMC Sierra 3500 Base

    $66,725

    MSRP $72,725

    Est. $1,234/mo

    Legacy GMC

    4.8
    Check Availability
    Slidell, LA (39 mi)
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  • 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

    $84,180

    MSRP $95,765

    Est. $1,557/mo

    Legacy Westbank Buick GMC

    4.5
    Check Availability
    Harvey, LA (48 mi)
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  • White 2026 GMC Sierra 3500 DenaliWhite 2026 GMC Sierra 3500 DenaliWhite 2026 GMC Sierra 3500 DenaliWhite 2026 GMC Sierra 3500 DenaliWhite 2026 GMC Sierra 3500 DenaliWhite 2026 GMC Sierra 3500 Denali

    $91,680

    MSRP $92,680

    Est. $1,696/mo

    Crown Buick GMC

    4.7
    Check Availability
    Metairie, LA (38 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

    $97,474

    MSRP $106,474

    Est. $1,803/mo

    Ross Downing GMC of Gonzales

    4.0
    Check Availability
    Gonzales, LA (42 mi)
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  • 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

    $93,155

    MSRP $104,155

    Est. $1,723/mo

    Legacy GMC

    4.8
    Check Availability
    Slidell, LA (39 mi)
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  • Glacier White 2026 GMC Sierra 3500 Denali UltimateGlacier White 2026 GMC Sierra 3500 Denali UltimateGlacier White 2026 GMC Sierra 3500 Denali UltimateGlacier White 2026 GMC Sierra 3500 Denali UltimateGlacier White 2026 GMC Sierra 3500 Denali UltimateGlacier White 2026 GMC Sierra 3500 Denali Ultimate

    $98,074

    MSRP $107,074

    Est. $1,814/mo

    Ross Downing GMC of Gonzales

    4.0
    Check Availability
    Gonzales, LA (42 mi)
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  • Coastal Dune 2026 GMC Sierra 3500 BaseCoastal Dune 2026 GMC Sierra 3500 BaseCoastal Dune 2026 GMC Sierra 3500 BaseCoastal Dune 2026 GMC Sierra 3500 BaseCoastal Dune 2026 GMC Sierra 3500 BaseCoastal Dune 2026 GMC Sierra 3500 Base

    $72,795

    MSRP $72,795

    Est. $1,347/mo

    Legacy GMC

    4.8
    Check Availability
    Slidell, LA (39 mi)
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  • Summit White 2026 GMC Sierra 3500 BaseSummit White 2026 GMC Sierra 3500 BaseSummit White 2026 GMC Sierra 3500 BaseSummit White 2026 GMC Sierra 3500 BaseSummit White 2026 GMC Sierra 3500 BaseSummit White 2026 GMC Sierra 3500 Base

    $72,300

    MSRP $72,300

    Est. $1,337/mo

    Legacy GMC

    4.8
    Check Availability
    Slidell, LA (39 mi)
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  • 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

    $96,860

    MSRP $107,860

    Est. $1,792/mo

    Legacy GMC

    4.8
    Check Availability
    Slidell, LA (39 mi)
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  • Glacier White 2026 GMC Sierra 3500 Denali UltimateGlacier White 2026 GMC Sierra 3500 Denali UltimateGlacier White 2026 GMC Sierra 3500 Denali UltimateGlacier White 2026 GMC Sierra 3500 Denali UltimateGlacier White 2026 GMC Sierra 3500 Denali UltimateGlacier White 2026 GMC Sierra 3500 Denali Ultimate

    $96,074

    MSRP $107,074

    Est. $1,777/mo

    Ross Downing GMC of Gonzales

    4.0
    Check Availability
    Gonzales, LA (42 mi)
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  • 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

    $93,755

    MSRP $104,755

    Est. $1,734/mo

    Legacy GMC

    4.8
    Check Availability
    Slidell, LA (39 mi)
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  • 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

    $96,260

    MSRP $107,260

    Est. $1,781/mo

    Legacy GMC

    4.8
    Check Availability
    Slidell, LA (39 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 Double Cab 162" SLE 4WD Reg Cab 142" SLE 4WD Crew Cab 172" SLE 4WD Crew Cab 159" SLE
Inventory price
Starting at $57,500 Starting at $55,200 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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