Skip to main content
Best match Lowest price Highest price Lowest mileage Highest mileage Nearest location Best deal Newest year Oldest year Newest listed Oldest listed
Skip to Filters
  • 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

    $78,900

    $175

    MSRP $79,075

    Est. $1,453/mo

    Jim Ellis Buick GMC

    4.6
    Check Availability
    Atlanta, GA (1 mi)

    Quick view
  • 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. $1,643/mo

    John Miles Chevrolet Buick GMC

    4.2
    Check Availability
    Conyers, GA (23 mi)

    Quick view
  • 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

    $119,937

    630 mi.
    Est. $2,208/mo

    Mall of Georgia Mazda

    4.9
    Check Availability
    Buford, GA (22 mi)
    Quick view
  • 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

    $83,439

    1,980 mi.
    Est. $1,536/mo

    Mercedes-Benz of Atlanta South

    4.7
    Check Availability
    Atlanta, GA (25 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

    $86,644

    $4.7K
    Est. $1,595/mo

    Rick Hendrick Buick GMC

    4.8
    Check Availability
    Duluth, GA (12 mi)
    Quick view
  • 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

    $80,064

    $100
    3,789 mi.
    Est. $1,474/mo

    ALM Ford Marietta

    4.1
    Check Availability
    Marietta, GA (13 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

    $82,804

    Est. $1,525/mo

    Colonial Buick GMC

    4.6
    Check Availability
    Loganville, GA (22 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

    $88,170

    $1K

    MSRP $89,170

    Est. $1,623/mo

    John Miles Chevrolet Buick GMC

    4.2
    Check Availability
    Conyers, GA (23 mi)

    Quick view
  • 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

    $85,310

    $4.7K
    Est. $1,571/mo

    Rick Hendrick Buick GMC

    4.8
    Check Availability
    Duluth, GA (12 mi)
    Quick view
  • 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

    $85,310

    $1.4K
    Est. $1,571/mo

    Rick Hendrick Buick GMC

    4.8
    Check Availability
    Duluth, GA (12 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

    $85,805

    $4.7K
    Est. $1,580/mo

    Rick Hendrick Buick GMC

    4.8
    Check Availability
    Duluth, GA (12 mi)
    Quick view
  • 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

    $85,805

    $4.7K
    Est. $1,580/mo

    Rick Hendrick Buick GMC

    4.8
    Check Availability
    Duluth, GA (12 mi)
    Quick view
  • 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

    $82,804

    Est. $1,525/mo

    Colonial Buick GMC

    4.6
    Check Availability
    Loganville, GA (22 mi)
    Quick view
  • Black 2026 GMC Sierra 2500 AT4Black 2026 GMC Sierra 2500 AT4Black 2026 GMC Sierra 2500 AT4Black 2026 GMC Sierra 2500 AT4Black 2026 GMC Sierra 2500 AT4Black 2026 GMC Sierra 2500 AT4

    $81,214

    485 mi.
    Est. $1,495/mo

    ALM Kennesaw

    4.5
    Check Availability
    Kennesaw, GA (19 mi)

    Quick view
  • 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

    $92,898

    Est. $1,711/mo

    Laura Buick GMC

    4.5
    Check Availability
    $920 delivery from Collinsville, IL (460 mi)
    Quick view
  • 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

    $72,221

    $1.6K
    Est. $1,330/mo

    Jimmy Britt Chevrolet

    4.3
    Check Availability
    $399 delivery from Greensboro, GA (67 mi)
    Quick view
  • 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

    $84,800

    $1K
    Est. $1,561/mo

    Southtowne Chevrolet Cadillac Buick GMC

    3.9
    Check Availability
    Newnan, GA (44 mi)
    Quick view
  • 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

    $84,795

    Est. $1,561/mo

    Southtowne Chevrolet Cadillac Buick GMC

    3.9
    Check Availability
    Newnan, GA (44 mi)
    Quick view
  • 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

    $84,695

    $1K
    Est. $1,559/mo

    Southtowne Chevrolet Cadillac Buick GMC

    3.9
    Check Availability
    Newnan, GA (44 mi)
    Quick view
  • 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

    $90,495

    $1K
    Est. $1,666/mo

    Southtowne Chevrolet Cadillac Buick GMC

    3.9
    Check Availability
    Newnan, GA (44 mi)
    Quick view
  • 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

    $80,950

    Est. $1,491/mo

    Southtowne Chevrolet Cadillac Buick GMC

    3.9
    Check Availability
    Newnan, GA (44 mi)
    Quick view
  • 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

    $84,995

    $1K
    Est. $1,565/mo

    Southtowne Chevrolet Cadillac Buick GMC

    3.9
    Check Availability
    Newnan, GA (44 mi)
    Quick view
  • 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

    $81,595

    $1K
    Est. $1,502/mo

    Southtowne Chevrolet Cadillac Buick GMC

    3.9
    Check Availability
    Newnan, GA (44 mi)
    Quick view
  • Summit White 2026 GMC Sierra 2500 AT4

    $68,370

    Est. $1,259/mo

    Southtowne Chevrolet Cadillac Buick GMC

    3.9
    Check Availability
    Newnan, GA (44 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)
Skip to Listings
Best match Lowest price Highest price Lowest mileage Highest mileage Nearest location Best deal Newest year Oldest year Newest listed Oldest listed

GMC Sierra 2500 trims