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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. $1,650/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (30 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. $1,650/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (30 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

    $91,998

    MSRP $98,204

    Est. $1,678/mo

    Tasca Buick GMC Palm Harbor

    4.7
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    Palm Harbor, FL (10 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

    $100,098

    MSRP $99,554

    Est. $1,826/mo

    Tasca Buick GMC Clearwater

    4.8
    Check Availability
    Clearwater, FL (18 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

    $95,523

    MSRP $99,025

    Est. $1,743/mo

    Ferman Buick GMC

    4.8
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    Lutz, 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

    $93,025

    Est. $1,697/mo

    Coast Buick GMC

    4.5
    Check Availability
    PORT RICHEY, FL (9 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

    $93,478

    Est. $1,705/mo

    Coast Buick GMC

    4.5
    Check Availability
    PORT RICHEY, FL (9 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. $1,650/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (30 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

    $93,478

    Est. $1,705/mo

    Coast Buick GMC

    4.5
    Check Availability
    PORT RICHEY, FL (9 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

    MSRP $99,904

    Est. $1,658/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (30 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

    $93,478

    Est. $1,705/mo

    Coast Buick GMC

    4.5
    Check Availability
    PORT RICHEY, FL (9 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

    $89,543

    2,137 mi.
    Est. $1,633/mo

    Coast Buick GMC

    4.5
    Check Availability
    PORT RICHEY, FL (9 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

    $93,478

    Est. $1,705/mo

    Coast Buick GMC

    4.5
    Check Availability
    PORT RICHEY, FL (9 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. $1,650/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (30 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

    $96,548

    MSRP $98,004

    Est. $1,761/mo

    Tasca Buick GMC Clearwater

    4.8
    Check Availability
    Clearwater, FL (18 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

    $93,025

    Est. $1,697/mo

    Coast Buick GMC

    4.5
    Check Availability
    PORT RICHEY, FL (9 mi)
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  • Onyx Black 2026 GMC Sierra 2500 AT4X

    $90,889

    MSRP $99,904

    Est. $1,658/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (30 mi)
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  • $89,800

    1,839 mi.
    Est. $1,638/mo

    Ferman Buick GMC

    4.8
    Check Availability
    Lutz, 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

    $109,240

    Est. $1,993/mo

    Impex Chevrolet GMC

    4.7
    Check Availability
    $673 delivery from Reidsville, NC (591 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

    $100,025

    Est. $1,825/mo

    Impex Chevrolet GMC

    4.7
    Check Availability
    $673 delivery from Reidsville, NC (591 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

    $88,609

    10,172 mi.
    Est. $1,616/mo

    Cox Chevrolet

    4.6
    Check Availability
    Bradenton, FL (52 mi)
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  • Coastal Dune 2026 GMC Sierra 2500 AT4XCoastal Dune 2026 GMC Sierra 2500 AT4XCoastal Dune 2026 GMC Sierra 2500 AT4X

    $89,991

    3,505 mi.
    Est. $1,642/mo

    Plaza Chrysler Dodge Jeep Ram

    4.6
    Check Availability
    Inverness, FL (51 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 (59 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

    $91,448

    Est. $1,668/mo

    Jim Browne Dade City Chevrolet GMC

    3.9
    Check Availability
    Dade City, FL (35 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

    $93,500

    Est. $1,706/mo

    Kelley Buick GMC of Bartow

    4.1
    Check Availability
    Bartow, FL (59 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

    $89,146

    Est. $1,626/mo

    Regal Automotive Group

    4.6
    Check Availability
    Lakeland, FL (49 mi)
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  • Dune 2026 GMC Sierra 2500 AT4X

    Not Priced

    Kelley Buick GMC of Bartow

    4.1
    Check Availability
    Bartow, FL (59 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 (59 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 (59 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 (59 mi)
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  • Not Priced

    Kelley Buick GMC of Bartow

    4.1
    Check Availability
    Bartow, FL (59 mi)
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  • $93,500

    Est. $1,706/mo

    Kelley Buick GMC of Bartow

    4.1
    Check Availability
    Bartow, FL (59 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