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  • Summit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4X

    $86,187

    Est. $1,572/mo

    Regal Automotive Group

    4.6
    Check Availability
    Lakeland, FL (5 mi)

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  • Summit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4X

    $93,000

    Est. $1,697/mo

    Kelley Buick GMC of Bartow

    4.1
    Check Availability
    Bartow, FL (10 mi)

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  • Summit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4X

    $87,447

    Est. $1,595/mo

    Huston Cadillac GMC

    4.9
    Check Availability
    Lake Wales, FL (20 mi)
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  • Summit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4X

    $89,446

    $1K

    MSRP $99,409

    Est. $1,632/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (29 mi)
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  • Onyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4X

    $86,892

    Est. $1,585/mo

    Huston Cadillac GMC

    4.9
    Check Availability
    Lake Wales, FL (20 mi)
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  • Summit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4X

    $93,941

    Est. $1,714/mo

    Huston Cadillac GMC

    4.9
    Check Availability
    Lake Wales, FL (20 mi)
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  • Summit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4X

    $94,549

    Est. $1,725/mo

    Huston Cadillac GMC

    4.9
    Check Availability
    Lake Wales, FL (20 mi)
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  • Summit White 2026 GMC Sierra 2500 AT4X

    $93,000

    Est. $1,697/mo

    Kelley Buick GMC of Bartow

    4.1
    Check Availability
    Bartow, FL (10 mi)

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  • Sterling 2026 GMC Sierra 2500 AT4XSterling 2026 GMC Sierra 2500 AT4XSterling 2026 GMC Sierra 2500 AT4XSterling 2026 GMC Sierra 2500 AT4XSterling 2026 GMC Sierra 2500 AT4XSterling 2026 GMC Sierra 2500 AT4X

    $84,730

    Est. $1,546/mo

    Huston Cadillac GMC

    4.9
    Check Availability
    Lake Wales, FL (20 mi)
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  • Onyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4X

    $94,411

    Est. $1,722/mo

    Huston Cadillac GMC

    4.9
    Check Availability
    Lake Wales, FL (20 mi)
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  • Dune 2026 GMC Sierra 2500 AT4XDune 2026 GMC Sierra 2500 AT4XDune 2026 GMC Sierra 2500 AT4XDune 2026 GMC Sierra 2500 AT4XDune 2026 GMC Sierra 2500 AT4XDune 2026 GMC Sierra 2500 AT4X

    $94,411

    Est. $1,722/mo

    Huston Cadillac GMC

    4.9
    Check Availability
    Lake Wales, FL (20 mi)
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  • Summit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4X

    $94,443

    Est. $1,723/mo

    Huston Cadillac GMC

    4.9
    Check Availability
    Lake Wales, FL (20 mi)
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  • Summit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4X

    $89,446

    $1K

    MSRP $99,409

    Est. $1,632/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (29 mi)
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  • Onyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4X

    $90,229

    $1K

    MSRP $99,904

    Est. $1,646/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (29 mi)

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  • Summit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4X

    $89,446

    $1K

    MSRP $99,409

    Est. $1,632/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (29 mi)
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  • Summit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4XSummit White 2026 GMC Sierra 2500 AT4X

    $89,446

    $1K

    MSRP $99,409

    Est. $1,632/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (29 mi)
    Quick view
  • Dune 2026 GMC Sierra 2500 AT4XDune 2026 GMC Sierra 2500 AT4XDune 2026 GMC Sierra 2500 AT4XDune 2026 GMC Sierra 2500 AT4XDune 2026 GMC Sierra 2500 AT4XDune 2026 GMC Sierra 2500 AT4X

    $91,430

    Est. $1,668/mo

    Jim Browne Dade City Chevrolet GMC

    3.9
    Check Availability
    Dade City, FL (27 mi)
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  • Onyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4X

    $89,889

    $1K

    MSRP $99,904

    Est. $1,640/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (29 mi)
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  • Dune 2026 GMC Sierra 2500 AT4X

    Not Priced

    Kelley Buick GMC of Bartow

    4.1
    Check Availability
    Bartow, FL (10 mi)
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  • Dune 2026 GMC Sierra 2500 AT4X

    $93,500

    Est. $1,706/mo

    Kelley Buick GMC of Bartow

    4.1
    Check Availability
    Bartow, FL (10 mi)

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  • Summit White 2026 GMC Sierra 2500 AT4X

    Not Priced

    Kelley Buick GMC of Bartow

    4.1
    Check Availability
    Bartow, FL (10 mi)
    Quick view
  • Dune 2026 GMC Sierra 2500 AT4X

    $93,500

    Est. $1,706/mo

    Kelley Buick GMC of Bartow

    4.1
    Check Availability
    Bartow, FL (10 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4X

    $99,025

    Est. $1,806/mo

    Impex Chevrolet GMC

    4.7
    Check Availability
    $670 delivery from Reidsville, NC (588 mi)
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  • Onyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4XOnyx Black 2026 GMC Sierra 2500 AT4X

    $90,927

    Est. $1,659/mo

    Laura Buick GMC

    4.5
    Check Availability
    $1,743 delivery from Collinsville, IL (872 mi)
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About the 2026 GMC Sierra 2500 AT4X

Basics

AT4X 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 AT4X
FAQs

How much does the 2026 GMC Sierra 2500 AT4X cost?

The 2026 GMC Sierra 2500 AT4X price depends on optional features. Prices typically start at $85,200.

What are some similar vehicles and competitors of the 2026 GMC Sierra 2500 AT4X?

The 2026 GMC Sierra 2500 AT4X compares to and/or competes against the following vehicles:


Trims

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)
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2026 GMC Sierra 2500 AT4X by city

GMC Sierra 2500 trims