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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

    $100,474

    MSRP $99,649

    Est. $1,762/mo

    Jim Ellis Buick GMC

    4.6
    Atlanta, GA (13 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

    $87,589

    19,671 mi.
    Est. $1,536/mo

    Hardy Superstore

    4.8
    Dallas, GA (29 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

    $92,419

    $744
    Est. $1,621/mo

    Colonial Buick GMC

    4.6
    Loganville, GA (26 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

    $95,270

    Est. $1,671/mo

    Rick Hendrick Buick GMC

    4.8
    Duluth, GA (21 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

    $94,775

    Est. $1,662/mo

    Rick Hendrick Buick GMC

    4.8
    Duluth, GA (21 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

    $92,419

    $744
    Est. $1,621/mo

    Colonial Buick GMC

    4.6
    Loganville, GA (26 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

    $92,269

    $744
    Est. $1,618/mo

    Colonial Buick GMC

    4.6
    Loganville, GA (26 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

    $95,270

    Est. $1,671/mo

    Rick Hendrick Buick GMC

    4.8
    Duluth, GA (21 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

    $94,775

    Est. $1,662/mo

    Rick Hendrick Buick GMC

    4.8
    Duluth, GA (21 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

    $94,775

    Est. $1,662/mo

    Rick Hendrick Buick GMC

    4.8
    Duluth, GA (21 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

    $95,270

    Est. $1,671/mo

    Rick Hendrick Buick GMC

    4.8
    Duluth, GA (21 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

    $95,270

    Est. $1,671/mo

    Rick Hendrick Buick GMC

    4.8
    Duluth, GA (21 mi)
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  • Titanium Rush Metallic 2026 GMC Sierra 2500 AT4XTitanium Rush Metallic 2026 GMC Sierra 2500 AT4XTitanium Rush Metallic 2026 GMC Sierra 2500 AT4XTitanium Rush Metallic 2026 GMC Sierra 2500 AT4XTitanium Rush Metallic 2026 GMC Sierra 2500 AT4XTitanium Rush Metallic 2026 GMC Sierra 2500 AT4X

    $100,474

    MSRP $99,649

    Est. $1,762/mo

    Jim Ellis Buick GMC

    4.6
    Atlanta, GA (13 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

    $92,269

    $744
    Est. $1,618/mo

    Colonial Buick GMC

    4.6
    Loganville, GA (26 mi)
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  • Sterling Metallic 2026 GMC Sierra 2500 AT4X

    $99,025

    Est. $1,737/mo

    Rick Hendrick Buick GMC

    4.8
    Duluth, GA (21 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

    $94,775

    Est. $1,662/mo

    Rick Hendrick Buick GMC

    4.8
    Duluth, GA (21 mi)
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  • Volcanic Red Tintcoat 2026 GMC Sierra 2500 AT4X

    $99,175

    Est. $1,739/mo

    Rick Hendrick Buick GMC

    4.8
    Duluth, GA (21 mi)
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  • Summit White 2026 GMC Sierra 2500 AT4X

    $98,530

    Est. $1,728/mo

    Rick Hendrick Buick GMC

    4.8
    Duluth, GA (21 mi)
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  • Onyx Black 2026 GMC Sierra 2500 AT4X

    $95,270

    $3.7K
    Est. $1,671/mo

    Rick Hendrick Buick GMC

    4.8
    Duluth, GA (21 mi)
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  • Summit White 2026 GMC Sierra 2500 AT4X

    $94,775

    $3.7K
    Est. $1,662/mo

    Rick Hendrick Buick GMC

    4.8
    Duluth, GA (21 mi)
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  • Coastal Dune 2026 GMC Sierra 2500 AT4X

    $95,270

    $3.7K
    Est. $1,671/mo

    Rick Hendrick Buick GMC

    4.8
    Duluth, GA (21 mi)
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  • Onyx Black 2026 GMC Sierra 2500 AT4X

    $95,270

    $3.7K
    Est. $1,671/mo

    Rick Hendrick Buick GMC

    4.8
    Duluth, GA (21 mi)
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  • Summit White 2026 GMC Sierra 2500 AT4X

    $98,530

    Est. $1,728/mo

    Rick Hendrick Buick GMC

    4.8
    Duluth, GA (21 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

    $86,698

    3,209 mi.
    Est. $1,521/mo

    Grand Motorcars

    3.3
    Marietta, GA (20 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

    $99,455

    $542
    Est. $1,744/mo

    Jimmy Britt Chevrolet

    4.3
    $399 delivery from Greensboro, GA (67 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

    $82,963

    Est. $1,455/mo

    Laura Buick GMC

    4.5
    $934 delivery from Collinsville, IL (468 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