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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

    $86,247

    Est. $1,493/mo

    Kelley Buick GMC of Bartow

    4.0
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    Bartow, FL (28 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

    $86,397

    Est. $1,496/mo

    Kelley Buick GMC of Bartow

    4.0
    Check Availability
    Bartow, FL (28 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

    $81,228

    Est. $1,406/mo

    Regal Automotive Group

    4.6
    Check Availability
    Lakeland, FL (21 mi)
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  • Titanium Rush Metallic 2026 GMC Sierra 2500 AT4Titanium Rush Metallic 2026 GMC Sierra 2500 AT4Titanium Rush Metallic 2026 GMC Sierra 2500 AT4Titanium Rush Metallic 2026 GMC Sierra 2500 AT4Titanium Rush Metallic 2026 GMC Sierra 2500 AT4Titanium Rush Metallic 2026 GMC Sierra 2500 AT4

    $83,979

    MSRP $82,680

    Est. $1,454/mo

    Ferman Buick GMC

    4.8
    Check Availability
    Lutz, FL (16 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

    $88,833

    MSRP $91,289

    Est. $1,538/mo

    Tasca Buick GMC Palm Harbor

    4.7
    Check Availability
    Palm Harbor, FL (29 mi)
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  • Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4

    $90,633

    MSRP $91,089

    Est. $1,569/mo

    Tasca Buick GMC Clearwater

    4.8
    Check Availability
    Clearwater, FL (28 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

    $81,194

    MSRP $91,059

    Est. $1,406/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (6 mi)
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  • Dune 2026 GMC Sierra 2500 AT4

    $85,335

    Est. $1,477/mo

    Kelley Buick GMC of Bartow

    4.0
    Check Availability
    Bartow, FL (28 mi)

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  • Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4

    $82,866

    MSRP $92,434

    Est. $1,435/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (6 mi)
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  • Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4

    $87,594

    $3.2K

    MSRP $90,495

    Est. $1,517/mo

    Ferman Buick GMC

    4.8
    Check Availability
    Lutz, FL (16 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

    $81,194

    MSRP $91,059

    Est. $1,406/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (6 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

    $82,866

    MSRP $92,434

    Est. $1,435/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (6 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

    $83,448

    Est. $1,445/mo

    Jim Browne Dade City Chevrolet GMC

    3.9
    Check Availability
    Dade City, FL (23 mi)
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  • Dune 2026 GMC Sierra 2500 AT4

    $86,606

    Est. $1,499/mo

    Kelley Buick GMC of Bartow

    4.0
    Check Availability
    Bartow, FL (28 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

    $80,753

    MSRP $90,564

    Est. $1,398/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (6 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

    $100,971

    $1K

    MSRP $87,650

    Est. $1,748/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (6 mi)
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  • Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4

    $81,841

    MSRP $91,289

    Est. $1,417/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (6 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

    $82,866

    MSRP $92,434

    Est. $1,435/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (6 mi)
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  • Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4

    $102,764

    MSRP $92,434

    Est. $1,779/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (6 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

    $78,932

    6,532 mi.
    Est. $1,367/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (6 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

    $81,841

    MSRP $91,289

    Est. $1,417/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (6 mi)
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  • Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4

    $81,841

    MSRP $91,289

    Est. $1,417/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (6 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4Sterling Metallic 2026 GMC Sierra 2500 AT4

    $81,635

    MSRP $91,059

    Est. $1,413/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (6 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

    $97,070

    $1K

    MSRP $87,650

    Est. $1,681/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (6 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

    $81,326

    $1K

    MSRP $91,825

    Est. $1,408/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (6 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

    $92,633

    $1K

    MSRP $91,059

    Est. $1,604/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (6 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

    $88,978

    Est. $1,540/mo

    Laura Buick GMC

    4.5
    Check Availability
    $1,724 delivery from Collinsville, IL (863 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

    $69,693

    Est. $1,207/mo

    Laura Buick GMC

    4.5
    Check Availability
    $1,724 delivery from Collinsville, IL (863 mi)
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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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Best match Lowest price Highest price Lowest mileage Highest mileage Nearest location Best deal Newest year Oldest year Newest listed Oldest listed

2026 GMC Sierra 2500 AT4 by city

GMC Sierra 2500 trims