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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

    $2K
    Est. $1,580/mo

    Regal Automotive Group

    4.6
    Check Availability
    Lakeland, FL (23 mi)

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  • Volcanic Red Tintcoat 2026 GMC Sierra 2500 AT4XVolcanic Red Tintcoat 2026 GMC Sierra 2500 AT4XVolcanic Red Tintcoat 2026 GMC Sierra 2500 AT4XVolcanic Red Tintcoat 2026 GMC Sierra 2500 AT4XVolcanic Red Tintcoat 2026 GMC Sierra 2500 AT4XVolcanic Red Tintcoat 2026 GMC Sierra 2500 AT4X

    $95,004

    MSRP $98,004

    Est. $1,741/mo

    Tasca Buick GMC Clearwater

    4.8
    Check Availability
    Clearwater, FL (27 mi)
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  • Volcanic Red Tintcoat 2026 GMC Sierra 2500 AT4XVolcanic Red Tintcoat 2026 GMC Sierra 2500 AT4XVolcanic Red Tintcoat 2026 GMC Sierra 2500 AT4XVolcanic Red Tintcoat 2026 GMC Sierra 2500 AT4XVolcanic Red Tintcoat 2026 GMC Sierra 2500 AT4XVolcanic Red Tintcoat 2026 GMC Sierra 2500 AT4X

    $91,024

    MSRP $100,054

    Est. $1,668/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 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

    $99,842

    MSRP $98,969

    Est. $1,830/mo

    Century Buick GMC

    4.8
    Check Availability
    Tampa, FL (12 mi)
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  • Sterling Metallic 2026 GMC Sierra 2500 AT4XSterling Metallic 2026 GMC Sierra 2500 AT4XSterling Metallic 2026 GMC Sierra 2500 AT4XSterling Metallic 2026 GMC Sierra 2500 AT4XSterling Metallic 2026 GMC Sierra 2500 AT4XSterling Metallic 2026 GMC Sierra 2500 AT4X

    $90,889

    $9K

    MSRP $99,904

    Est. $1,666/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 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

    $106,870

    MSRP $107,870

    Est. $1,959/mo

    Ferman Buick GMC

    4.8
    Check Availability
    Lutz, FL (16 mi)
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  • Volcanic Red 2026 GMC Sierra 2500 AT4XVolcanic Red 2026 GMC Sierra 2500 AT4XVolcanic Red 2026 GMC Sierra 2500 AT4XVolcanic Red 2026 GMC Sierra 2500 AT4XVolcanic Red 2026 GMC Sierra 2500 AT4XVolcanic Red 2026 GMC Sierra 2500 AT4X

    $89,454

    $1K

    MSRP $98,204

    Est. $1,639/mo

    Tasca Buick GMC Palm Harbor

    4.7
    Check Availability
    Palm Harbor, FL (27 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

    $90,446

    MSRP $99,409

    Est. $1,658/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 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

    $90,446

    MSRP $99,409

    Est. $1,658/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
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  • Sterling Metallic 2026 GMC Sierra 2500 AT4XSterling Metallic 2026 GMC Sierra 2500 AT4XSterling Metallic 2026 GMC Sierra 2500 AT4XSterling Metallic 2026 GMC Sierra 2500 AT4XSterling Metallic 2026 GMC Sierra 2500 AT4XSterling Metallic 2026 GMC Sierra 2500 AT4X

    $96,294

    $3.6K

    MSRP $100,940

    Est. $1,765/mo

    Ferman Buick GMC

    4.8
    Check Availability
    Lutz, FL (16 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

    $90,446

    MSRP $99,409

    Est. $1,658/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 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

    $98,054

    $500

    MSRP $99,554

    Est. $1,797/mo

    Tasca Buick GMC Clearwater

    4.8
    Check Availability
    Clearwater, FL (27 mi)
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  • Summit White 2026 GMC Sierra 2500 AT4X

    $90,446

    MSRP $99,409

    Est. $1,658/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
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  • Sterling Metallic 2026 GMC Sierra 2500 AT4X

    $90,889

    $9K

    MSRP $99,904

    Est. $1,666/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
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  • Summit White 2026 GMC Sierra 2500 AT4X

    $90,446

    MSRP $99,409

    Est. $1,658/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
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  • Dune 2026 GMC Sierra 2500 AT4X

    Not Priced

    Kelley Buick GMC of Bartow

    4.1
    Check Availability
    Bartow, 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 (29 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 (29 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 (29 mi)
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  • Onyx Black 2026 GMC Sierra 2500 AT4X

    $90,889

    MSRP $99,904

    Est. $1,666/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
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  • Onyx Black 2026 GMC Sierra 2500 AT4X

    $90,889

    MSRP $99,904

    Est. $1,666/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
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  • Dune 2026 GMC Sierra 2500 AT4X

    $89,980

    $1K
    Est. $1,649/mo

    Jim Browne Dade City Chevrolet GMC

    3.7
    Check Availability
    Dade City, FL (25 mi)
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  • White 2026 GMC Sierra 2500 AT4XWhite 2026 GMC Sierra 2500 AT4XWhite 2026 GMC Sierra 2500 AT4XWhite 2026 GMC Sierra 2500 AT4XWhite 2026 GMC Sierra 2500 AT4XWhite 2026 GMC Sierra 2500 AT4X

    $99,675

    MSRP $100,450

    Est. $1,827/mo

    Group 1 Buick GMC South

    4.6
    Check Availability
    Free delivery from Houston, TX (790 mi)
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  • Onyx Black 2026 GMC Sierra 2500 AT4X

    $99,255

    Est. $1,819/mo

    Impex Chevrolet GMC

    4.7
    Check Availability
    $681 delivery from Reidsville, NC (598 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