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  • Dune 2026 GMC Sierra 2500 AT4Dune 2026 GMC Sierra 2500 AT4Dune 2026 GMC Sierra 2500 AT4Dune 2026 GMC Sierra 2500 AT4Dune 2026 GMC Sierra 2500 AT4Dune 2026 GMC Sierra 2500 AT4

    $101,192

    MSRP $92,379

    Est. $1,879/mo

    Jim Ellis Buick GMC

    4.6
    Check Availability
    Atlanta, GA (13 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

    $89,209

    $1K

    MSRP $90,209

    Est. $1,656/mo

    John Miles Chevrolet Buick GMC

    4.4
    Check Availability
    Conyers, GA (19 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

    $83,120

    $100
    3,789 mi.
    Est. $1,543/mo

    ALM Ford Marietta

    4.2
    Check Availability
    Marietta, GA (22 mi)
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  • Summit White 2026 GMC Sierra 2500 AT4

    $90,065

    Est. $1,672/mo

    Rick Hendrick Buick GMC

    4.8
    Check Availability
    Duluth, GA (21 mi)
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  • Sterling Metallic 2026 GMC Sierra 2500 AT4

    $82,560

    Est. $1,533/mo

    Colonial Buick GMC

    4.6
    Check Availability
    Loganville, GA (26 mi)
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  • Onyx Black 2026 GMC Sierra 2500 AT4

    $90,560

    Est. $1,681/mo

    Rick Hendrick Buick GMC

    4.8
    Check Availability
    Duluth, GA (21 mi)
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  • Sterling Metallic 2026 GMC Sierra 2500 AT4

    $90,560

    Est. $1,681/mo

    Rick Hendrick Buick GMC

    4.8
    Check Availability
    Duluth, GA (21 mi)
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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

    $82,560

    Est. $1,533/mo

    Colonial Buick GMC

    4.6
    Check Availability
    Loganville, GA (26 mi)

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  • Summit White 2026 GMC Sierra 2500 AT4

    $90,065

    Est. $1,672/mo

    Rick Hendrick Buick GMC

    4.8
    Check Availability
    Duluth, GA (21 mi)
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  • Summit White 2026 GMC Sierra 2500 AT4Summit White 2026 GMC Sierra 2500 AT4Summit White 2026 GMC Sierra 2500 AT4Summit White 2026 GMC Sierra 2500 AT4Summit White 2026 GMC Sierra 2500 AT4Summit White 2026 GMC Sierra 2500 AT4

    $111,804

    Est. $2,076/mo

    Rick Hendrick Buick GMC

    4.8
    Check Availability
    Duluth, GA (21 mi)
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  • Summit White 2026 GMC Sierra 2500 AT4Summit White 2026 GMC Sierra 2500 AT4Summit White 2026 GMC Sierra 2500 AT4Summit White 2026 GMC Sierra 2500 AT4Summit White 2026 GMC Sierra 2500 AT4Summit White 2026 GMC Sierra 2500 AT4

    $111,804

    Est. $2,076/mo

    Rick Hendrick Buick GMC

    4.8
    Check Availability
    Duluth, GA (21 mi)
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  • Dune 2026 GMC Sierra 2500 AT4

    $81,171

    MSRP $91,930

    Est. $1,507/mo

    Hardy Chevrolet GMC

    4.6
    Check Availability
    Dallas, GA (29 mi)
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  • Dune 2026 GMC Sierra 2500 AT4

    $79,941

    MSRP $90,560

    Est. $1,484/mo

    Hardy Chevrolet GMC

    4.6
    Check Availability
    Dallas, GA (29 mi)
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  • Sterling Metallic 2026 GMC Sierra 2500 AT4

    $75,865

    $3K
    Est. $1,409/mo

    Colonial Buick GMC

    4.6
    Check Availability
    Loganville, GA (26 mi)

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  • Volcanic Red 2026 GMC Sierra 2500 AT4

    $80,412

    MSRP $91,085

    Est. $1,493/mo

    Hardy Chevrolet GMC

    4.6
    Check Availability
    Dallas, GA (29 mi)
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  • Onyx Black 2026 GMC Sierra 2500 AT4

    $79,941

    MSRP $90,560

    Est. $1,484/mo

    Hardy Chevrolet GMC

    4.6
    Check Availability
    Dallas, GA (29 mi)
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  • Onyx Black 2026 GMC Sierra 2500 AT4

    $82,513

    MSRP $92,925

    Est. $1,532/mo

    Hardy Chevrolet GMC

    4.6
    Check Availability
    Dallas, GA (29 mi)
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  • Summit White 2026 GMC Sierra 2500 AT4

    $79,497

    MSRP $90,065

    Est. $1,476/mo

    Hardy Chevrolet GMC

    4.6
    Check Availability
    Dallas, GA (29 mi)
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  • Summit White 2026 GMC Sierra 2500 AT4

    $81,820

    MSRP $92,430

    Est. $1,519/mo

    Hardy Chevrolet GMC

    4.6
    Check Availability
    Dallas, GA (29 mi)
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  • Volcanic Red Tintcoat 2026 GMC Sierra 2500 AT4

    $76,015

    $3K
    Est. $1,411/mo

    Colonial Buick GMC

    4.6
    Check Availability
    Loganville, GA (26 mi)

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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

    Not Priced

    Est. $0/mo

    Capital Buick GMC

    4.6
    Check Availability
    Smyrna, GA (16 mi)
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  • Black 2026 GMC Sierra 2500 AT4

    $83,470

    485 mi.
    Est. $1,550/mo

    ALM Kennesaw

    4.4
    Check Availability
    Kennesaw, GA (25 mi)
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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

    $79,495

    $4.5K
    Est. $1,476/mo

    Jimmy Britt Chevrolet

    4.3
    Check Availability
    $399 delivery from Greensboro, GA (67 mi)
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  • Summit White 2026 GMC Sierra 2500 AT4Summit White 2026 GMC Sierra 2500 AT4Summit White 2026 GMC Sierra 2500 AT4Summit White 2026 GMC Sierra 2500 AT4Summit White 2026 GMC Sierra 2500 AT4Summit White 2026 GMC Sierra 2500 AT4

    $82,385

    $260
    Est. $1,530/mo

    Jimmy Britt Chevrolet

    4.3
    Check Availability
    $399 delivery from Greensboro, GA (67 mi)
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  • White 2026 GMC Sierra 2500 AT4White 2026 GMC Sierra 2500 AT4White 2026 GMC Sierra 2500 AT4White 2026 GMC Sierra 2500 AT4White 2026 GMC Sierra 2500 AT4White 2026 GMC Sierra 2500 AT4

    $79,970

    409 mi.
    Est. $1,485/mo

    ALM Nissan Newnan

    4.2
    Check Availability
    Newnan, GA (33 mi)
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  • Summit White 2026 GMC Sierra 2500 AT4Summit White 2026 GMC Sierra 2500 AT4Summit White 2026 GMC Sierra 2500 AT4Summit White 2026 GMC Sierra 2500 AT4Summit White 2026 GMC Sierra 2500 AT4Summit White 2026 GMC Sierra 2500 AT4

    $94,988

    $3K
    169 mi.
    Est. $1,764/mo

    Mall of Georgia Mazda

    4.9
    Check Availability
    Buford, GA (33 mi)
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  • Volcanic Red 2026 GMC Sierra 2500 AT4Volcanic Red 2026 GMC Sierra 2500 AT4Volcanic Red 2026 GMC Sierra 2500 AT4Volcanic Red 2026 GMC Sierra 2500 AT4Volcanic Red 2026 GMC Sierra 2500 AT4Volcanic Red 2026 GMC Sierra 2500 AT4

    $84,595

    $1K
    Est. $1,571/mo

    Southtowne Chevrolet Cadillac Buick GMC

    3.9
    Check Availability
    Newnan, GA (33 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

    $93,495

    $1K
    Est. $1,736/mo

    Southtowne Chevrolet Cadillac Buick GMC

    3.9
    Check Availability
    Newnan, GA (33 mi)
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  • Dune 2026 GMC Sierra 2500 AT4Dune 2026 GMC Sierra 2500 AT4Dune 2026 GMC Sierra 2500 AT4Dune 2026 GMC Sierra 2500 AT4Dune 2026 GMC Sierra 2500 AT4Dune 2026 GMC Sierra 2500 AT4

    $87,695

    $1K
    Est. $1,628/mo

    Southtowne Chevrolet Cadillac Buick GMC

    3.9
    Check Availability
    Newnan, GA (33 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

    $119,988

    630 mi.
    Est. $2,228/mo

    Mall of Georgia Mazda

    4.9
    Check Availability
    Buford, GA (33 mi)
    Quick view

About the 2026 GMC Sierra 2500 AT4

Basics

AT4 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 AT4
FAQs

How much does the 2026 GMC Sierra 2500 AT4 cost?

The 2026 GMC Sierra 2500 AT4 price depends on optional features. Prices typically start at $72,200.

What are some similar vehicles and competitors of the 2026 GMC Sierra 2500 AT4?

The 2026 GMC Sierra 2500 AT4 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)
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2026 GMC Sierra 2500 AT4 by city

GMC Sierra 2500 trims