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  • Onyx Black 2026 GMC Sierra 2500 AT4Onyx Black 2026 GMC Sierra 2500 AT4Onyx Black 2026 GMC Sierra 2500 AT4Onyx Black 2026 GMC Sierra 2500 AT4Onyx Black 2026 GMC Sierra 2500 AT4Onyx Black 2026 GMC Sierra 2500 AT4

    $79,305

    $10K
    Est. $1,484/mo

    Behlmann Buick GMC

    4.7
    Check Availability
    Troy, MO (14 mi)

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  • Summit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLE

    $57,420

    $9K
    Est. $1,074/mo

    Behlmann Buick GMC

    4.7
    Check Availability
    Troy, MO (14 mi)

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  • Onyx Black 2026 GMC Sierra 2500 SLEOnyx Black 2026 GMC Sierra 2500 SLEOnyx Black 2026 GMC Sierra 2500 SLEOnyx Black 2026 GMC Sierra 2500 SLEOnyx Black 2026 GMC Sierra 2500 SLEOnyx Black 2026 GMC Sierra 2500 SLE

    $60,990

    $1K
    163 mi.
    Est. $1,141/mo

    AutoNation USA St. Louis

    4.6
    Check Availability
    St. Peters, MO (24 mi)
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  • Coastal Dune 2026 GMC Sierra 2500 AT4

    $80,604

    $10K
    Est. $1,508/mo

    Behlmann Buick GMC

    4.7
    Check Availability
    Troy, MO (14 mi)
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  • Onyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLT

    $65,025

    MSRP $71,875

    Est. $1,216/mo

    Jim Trenary Chevrolet Buick GMC

    Check Availability
    Union, MO (26 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

    $500

    MSRP $122,399

    Est. $2,271/mo

    Suntrup Buick GMC

    3.5
    Check Availability
    Saint Peters, MO (25 mi)
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  • Summit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLESummit White 2026 GMC Sierra 2500 SLE

    $51,970

    $2K
    Est. $972/mo

    Behlmann Buick GMC

    4.7
    Check Availability
    Troy, MO (14 mi)
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  • Coastal Dune 2026 GMC Sierra 2500 AT4Coastal Dune 2026 GMC Sierra 2500 AT4Coastal Dune 2026 GMC Sierra 2500 AT4Coastal Dune 2026 GMC Sierra 2500 AT4Coastal Dune 2026 GMC Sierra 2500 AT4Coastal Dune 2026 GMC Sierra 2500 AT4

    $79,305

    $10K
    Est. $1,484/mo

    Behlmann Buick GMC

    4.7
    Check Availability
    Troy, MO (14 mi)

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  • Volcanic Red Tintcoat 2026 GMC Sierra 2500 AT4

    $79,584

    $10K
    Est. $1,489/mo

    Behlmann Buick GMC

    4.7
    Check Availability
    Troy, MO (14 mi)
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  • Glacier White 2026 GMC Sierra 2500 SLTGlacier White 2026 GMC Sierra 2500 SLTGlacier White 2026 GMC Sierra 2500 SLTGlacier White 2026 GMC Sierra 2500 SLTGlacier White 2026 GMC Sierra 2500 SLTGlacier White 2026 GMC Sierra 2500 SLT

    $77,410

    $1.5K

    MSRP $86,410

    Est. $1,448/mo

    Suntrup Buick GMC

    3.5
    Check Availability
    Saint Peters, MO (25 mi)
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  • Sterling 2026 GMC Sierra 2500 SLTSterling 2026 GMC Sierra 2500 SLTSterling 2026 GMC Sierra 2500 SLTSterling 2026 GMC Sierra 2500 SLTSterling 2026 GMC Sierra 2500 SLTSterling 2026 GMC Sierra 2500 SLT

    $67,395

    $1.5K

    MSRP $76,395

    Est. $1,261/mo

    Suntrup Buick GMC

    3.5
    Check Availability
    Saint Peters, MO (25 mi)
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  • Summit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLTSummit White 2026 GMC Sierra 2500 SLT

    $76,395

    $1.5K

    MSRP $85,395

    Est. $1,429/mo

    Suntrup Buick GMC

    3.5
    Check Availability
    Saint Peters, MO (25 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

    $1.5K

    MSRP $91,315

    Est. $1,540/mo

    Suntrup Buick GMC

    3.5
    Check Availability
    Saint Peters, MO (25 mi)
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  • Glacier White Tricoat 2026 GMC Sierra 2500 SLTGlacier White Tricoat 2026 GMC Sierra 2500 SLTGlacier White Tricoat 2026 GMC Sierra 2500 SLTGlacier White Tricoat 2026 GMC Sierra 2500 SLTGlacier White Tricoat 2026 GMC Sierra 2500 SLTGlacier White Tricoat 2026 GMC Sierra 2500 SLT

    $73,170

    $2K
    Est. $1,369/mo

    Behlmann Buick GMC

    4.7
    Check Availability
    Troy, MO (14 mi)

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  • Onyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLTOnyx Black 2026 GMC Sierra 2500 SLT

    $72,075

    $10K
    Est. $1,348/mo

    Behlmann Buick GMC

    4.7
    Check Availability
    Troy, MO (14 mi)
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  • Volcanic Red Tintcoat 2026 GMC Sierra 2500 AT4Volcanic Red Tintcoat 2026 GMC Sierra 2500 AT4Volcanic Red Tintcoat 2026 GMC Sierra 2500 AT4Volcanic Red Tintcoat 2026 GMC Sierra 2500 AT4Volcanic Red Tintcoat 2026 GMC Sierra 2500 AT4Volcanic Red Tintcoat 2026 GMC Sierra 2500 AT4

    $67,830

    $2K
    Est. $1,269/mo

    Behlmann Buick GMC

    4.7
    Check Availability
    Troy, MO (14 mi)
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  • Summit White 2026 GMC Sierra 2500 SLE

    $51,970

    $9K
    Est. $972/mo

    Behlmann Buick GMC

    4.7
    Check Availability
    Troy, MO (14 mi)
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  • Sterling 2026 GMC Sierra 2500 AT4Sterling 2026 GMC Sierra 2500 AT4Sterling 2026 GMC Sierra 2500 AT4Sterling 2026 GMC Sierra 2500 AT4Sterling 2026 GMC Sierra 2500 AT4Sterling 2026 GMC Sierra 2500 AT4

    $81,255

    $1.5K

    MSRP $90,255

    Est. $1,520/mo

    Suntrup Buick GMC

    3.5
    Check Availability
    Saint Peters, MO (25 mi)
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  • Volcanic Red 2026 GMC Sierra 2500 SLTVolcanic Red 2026 GMC Sierra 2500 SLTVolcanic Red 2026 GMC Sierra 2500 SLTVolcanic Red 2026 GMC Sierra 2500 SLTVolcanic Red 2026 GMC Sierra 2500 SLTVolcanic Red 2026 GMC Sierra 2500 SLT

    $75,715

    $1.5K

    MSRP $84,715

    Est. $1,416/mo

    Suntrup Buick GMC

    3.5
    Check Availability
    Saint Peters, MO (25 mi)
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  • Coastal Dune 2026 GMC Sierra 2500 AT4XCoastal Dune 2026 GMC Sierra 2500 AT4XCoastal Dune 2026 GMC Sierra 2500 AT4XCoastal Dune 2026 GMC Sierra 2500 AT4XCoastal Dune 2026 GMC Sierra 2500 AT4XCoastal Dune 2026 GMC Sierra 2500 AT4X

    $88,620

    $2K
    Est. $1,658/mo

    Behlmann Buick GMC

    4.7
    Check Availability
    Troy, MO (14 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

    $1.5K

    MSRP $91,410

    Est. $1,542/mo

    Suntrup Buick GMC

    3.5
    Check Availability
    Saint Peters, MO (25 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

    $85,760

    $1.5K

    MSRP $94,760

    Est. $1,604/mo

    Suntrup Buick GMC

    3.5
    Check Availability
    Saint Peters, MO (25 mi)
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  • Sterling 2026 GMC Sierra 2500 Denali UltimateSterling 2026 GMC Sierra 2500 Denali UltimateSterling 2026 GMC Sierra 2500 Denali UltimateSterling 2026 GMC Sierra 2500 Denali UltimateSterling 2026 GMC Sierra 2500 Denali UltimateSterling 2026 GMC Sierra 2500 Denali Ultimate

    $98,714

    $500
    Est. $1,847/mo

    Laura Buick GMC

    4.6
    Check Availability
    $199 delivery from Collinsville, IL (57 mi)
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  • Onyx Black 2026 GMC Sierra 2500 SLT

    $77,333

    $3K
    Est. $1,447/mo

    Laura Buick GMC

    4.6
    Check Availability
    $199 delivery from Collinsville, IL (57 mi)
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About the 2026 GMC Sierra 2500

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 2500
FAQs

How much does the 2026 GMC Sierra 2500 cost?

The 2026 GMC Sierra 2500 price depends on trim level and optional features. Prices typically start at $47,000 and go as high as $94,500 for fully loaded models.

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

The 2026 GMC Sierra 2500 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 $72,200 Starting at $72,400
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)

AT4X (1 style)

Style
4WD Crew Cab 159" AT4X
Inventory price
Starting at $85,200
Combined MPG
0
Engine
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 $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)

Denali Ultimate (2 styles)

Style
4WD Crew Cab 159" Denali Ultimate 4WD Crew Cab 172" Denali Ultimate
Inventory price
Starting at $94,200 Starting at $94,500
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)

Pro (10 styles)

Style
2WD Crew Cab 172" Pro 2WD Crew Cab 159" Pro 4WD Crew Cab 159" Pro 4WD Crew Cab 172" Pro 4WD Double Cab 162" Pro 4WD Double Cab 149" Pro 2WD Double Cab 149" Pro 2WD Double Cab 162" Pro 2WD Reg Cab 142" Pro 4WD Reg Cab 142" Pro
Inventory price
Starting at $50,900 Starting at $50,700 Starting at $53,500 Starting at $53,700 Starting at $51,900 Starting at $51,700 Starting at $48,900 Starting at $49,100 Starting at $47,000 Starting at $49,800
Combined MPG
0 0 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) 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)

SLE (5 styles)

Style
4WD Crew Cab 172" SLE 4WD Crew Cab 159" SLE 4WD Double Cab 162" SLE 4WD Double Cab 149" SLE 4WD Reg Cab 142" SLE
Inventory price
Starting at $58,100 Starting at $57,900 Starting at $56,300 Starting at $56,100 Starting at $54,000
Combined MPG
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)

SLT (2 styles)

Style
4WD Crew Cab 159" SLT 4WD Crew Cab 172" SLT
Inventory price
Starting at $65,200 Starting at $65,500
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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