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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

    $82,560

    MSRP $89,560

    Est. $1,451/mo

    Van Chevrolet

    4.6
    Check Availability
    Scottsdale, AZ (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

    $82,860

    MSRP $89,860

    Est. $1,456/mo

    Van Chevrolet

    4.6
    Check Availability
    Scottsdale, AZ (25 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

    $86,570

    Est. $1,521/mo

    Henry Brown Buick GMC

    4.8
    Check Availability
    Gilbert, AZ (15 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

    $84,719

    MSRP $91,719

    Est. $1,489/mo

    Van Chevrolet

    4.6
    Check Availability
    Scottsdale, AZ (25 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

    $77,572

    $3K
    8,104 mi.
    Est. $1,363/mo

    Bill Luke Santan

    4.3
    Check Availability
    Gilbert, AZ (16 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

    $84,869

    MSRP $91,869

    Est. $1,491/mo

    Van Chevrolet

    4.6
    Check Availability
    Scottsdale, AZ (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

    $84,719

    MSRP $91,719

    Est. $1,489/mo

    Van Chevrolet

    4.6
    Check Availability
    Scottsdale, AZ (25 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

    $83,899

    MSRP $90,899

    Est. $1,474/mo

    Van Chevrolet

    4.6
    Check Availability
    Scottsdale, AZ (25 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

    $84,224

    MSRP $91,224

    Est. $1,480/mo

    Van Chevrolet

    4.6
    Check Availability
    Scottsdale, AZ (25 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

    $82,210

    MSRP $89,210

    Est. $1,444/mo

    Van Chevrolet

    4.6
    Check Availability
    Scottsdale, AZ (25 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

    $82,860

    MSRP $89,860

    Est. $1,456/mo

    Van Chevrolet

    4.6
    Check Availability
    Scottsdale, AZ (25 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

    $80,720

    MSRP $87,720

    Est. $1,418/mo

    Van Chevrolet

    4.6
    Check Availability
    Scottsdale, AZ (25 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

    $84,719

    MSRP $91,719

    Est. $1,489/mo

    Van Chevrolet

    4.6
    Check Availability
    Scottsdale, AZ (25 mi)
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  • Dune 2026 GMC Sierra 2500 AT4

    $90,040

    Est. $1,582/mo

    Henry Brown Buick GMC

    4.8
    Check Availability
    Gilbert, AZ (15 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

    $86,570

    Est. $1,521/mo

    Henry Brown Buick GMC

    4.8
    Check Availability
    Gilbert, AZ (15 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

    $89,790

    Est. $1,578/mo

    Henry Brown Buick GMC

    4.8
    Check Availability
    Gilbert, AZ (15 mi)
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  • Sterling Gray Metallic 2026 GMC Sierra 2500 AT4Sterling Gray Metallic 2026 GMC Sierra 2500 AT4Sterling Gray Metallic 2026 GMC Sierra 2500 AT4Sterling Gray Metallic 2026 GMC Sierra 2500 AT4Sterling Gray Metallic 2026 GMC Sierra 2500 AT4Sterling Gray Metallic 2026 GMC Sierra 2500 AT4

    $99,624

    $500
    11,289 mi.
    Est. $1,750/mo

    Lifted Trucks - Mesa

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    Mesa, AZ (17 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

    $96,625

    $1K
    7,458 mi.
    Est. $1,698/mo

    Lifted Trucks - Scottsdale

    Check Availability
    Scottsdale, AZ (22 mi)
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  • Volcanic Red Tintcoat 2026 GMC Sierra 2500 AT4

    $76,629

    Est. $1,346/mo

    Coulter Tempe

    4.5
    Check Availability
    Tempe, AZ (25 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

    $89,907

    $911
    7,485 mi.
    Est. $1,580/mo

    Shottenkirk Toyota of Granbury

    4.4
    Check Availability
    $1,207 delivery from Granbury, TX (805 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

    $97,121

    13,023 mi.
    Est. $1,706/mo

    Lifted Trucks - Glendale

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    Glendale, AZ (41 mi)
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  • Sterling Gray Metallic 2026 GMC Sierra 2500 AT4Sterling Gray Metallic 2026 GMC Sierra 2500 AT4Sterling Gray Metallic 2026 GMC Sierra 2500 AT4Sterling Gray Metallic 2026 GMC Sierra 2500 AT4Sterling Gray Metallic 2026 GMC Sierra 2500 AT4Sterling Gray Metallic 2026 GMC Sierra 2500 AT4

    $95,645

    8,514 mi.
    Est. $1,681/mo

    Lifted Trucks - Glendale

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    Glendale, AZ (41 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

    $84,154

    MSRP $87,570

    Est. $1,479/mo

    Jones Buick GMC Casa Grande

    4.0
    Check Availability
    Casa Grande, AZ (39 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

    $84,990

    $5.5K

    MSRP $90,490

    Est. $1,493/mo

    Liberty GMC

    4.5
    Check Availability
    Peoria, AZ (43 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

    $83,499

    MSRP $89,005

    Est. $1,467/mo

    Coulter Cadillac Buick GMC

    4.8
    Check Availability
    Phoenix, AZ (30 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

    $85,055

    MSRP $90,555

    Est. $1,494/mo

    Liberty GMC

    4.5
    Check Availability
    Peoria, AZ (43 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

    $110,499

    MSRP $116,470

    Est. $1,942/mo

    Coulter Cadillac Buick GMC

    4.8
    Check Availability
    Phoenix, AZ (30 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

    $97,050

    MSRP $90,555

    Est. $1,705/mo

    Liberty GMC

    4.5
    Check Availability
    Peoria, AZ (43 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

    $86,050

    MSRP $91,550

    Est. $1,512/mo

    Liberty GMC

    4.5
    Check Availability
    Peoria, AZ (43 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

    $85,055

    MSRP $90,555

    Est. $1,494/mo

    Liberty GMC

    4.5
    Check Availability
    Peoria, AZ (43 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

    $85,205

    MSRP $90,705

    Est. $1,497/mo

    Liberty GMC

    4.5
    Check Availability
    Peoria, AZ (43 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

    $85,205

    MSRP $90,705

    Est. $1,497/mo

    Liberty GMC

    4.5
    Check Availability
    Peoria, AZ (43 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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2026 GMC Sierra 2500 AT4 by city

GMC Sierra 2500 trims