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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

    $77,159

    $2K

    MSRP $89,065

    Est. $1,460/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability

  • 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

    $77,739

    $2K

    MSRP $89,710

    Est. $1,471/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability

  • 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

    $85,270

    MSRP $88,270

    Est. $1,614/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability

  • 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

    $84,226

    $5.6K

    MSRP $90,860

    Est. $1,594/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability
  • 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

    $82,978

    $5.5K

    MSRP $89,560

    Est. $1,570/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability
  • 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

    $75,237

    $2K

    MSRP $86,930

    Est. $1,424/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability
  • 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

    $84,226

    $5.6K

    MSRP $90,860

    Est. $1,594/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability
  • 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

    $86,560

    $2K

    MSRP $89,560

    Est. $1,638/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability
  • 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

    $85,765

    MSRP $88,765

    Est. $1,623/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability

  • 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

    $84,226

    $5.6K

    MSRP $90,860

    Est. $1,594/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability
  • 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

    $84,226

    $5.6K

    MSRP $90,860

    Est. $1,594/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability
  • 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

    $85,765

    $2K

    MSRP $88,765

    Est. $1,623/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability
  • 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

    $77,159

    $2K

    MSRP $89,065

    Est. $1,460/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability
  • 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

    $84,770

    $2K

    MSRP $87,770

    Est. $1,604/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability
  • 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

    $76,889

    $7.3K

    MSRP $88,765

    Est. $1,455/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability

  • 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

    $84,226

    $3.6K

    MSRP $90,860

    Est. $1,594/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability
  • 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

    $77,159

    $2K

    MSRP $89,065

    Est. $1,460/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability
  • 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

    $70,168

    $4.7K

    MSRP $79,075

    Est. $1,328/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability
  • 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

    $78,324

    $2K

    MSRP $90,360

    Est. $1,482/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability
  • 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

    $77,159

    $2K

    MSRP $89,065

    Est. $1,460/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability
  • 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

    $76,889

    $7.3K

    MSRP $88,765

    Est. $1,455/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability

  • 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

    $84,770

    MSRP $87,770

    Est. $1,604/mo

    Gwatney Buick GMC

    4.6
    North Little Rock, AR (17 mi)
    Check Availability
  • 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

    $74,535

    $2K

    MSRP $90,000

    Est. $1,411/mo

    VanGuard GMC

    4.7
    $418 delivery from Sherman, TX (279 mi)
    Check Availability
  • 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

    $74,535

    $2K

    MSRP $90,000

    Est. $1,411/mo

    VanGuard GMC

    4.7
    $418 delivery from Sherman, TX (279 mi)
    Check Availability
  • 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

    $72,427

    $1.5K
    9,731 mi.
    Est. $1,371/mo

    Crain Buick GMC of Conway

    4.2
    Conway, AR (34 mi)
    Check Availability
  • 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

    $72,931

    MSRP $79,785

    Est. $1,380/mo

    Everett Buick GMC

    4.5
    Bryant, AR (38 mi)
    Check Availability
  • 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

    $73,388

    MSRP $80,280

    Est. $1,389/mo

    Everett Buick GMC

    4.5
    Bryant, AR (38 mi)
    Check Availability
  • 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

    $74,036

    MSRP $80,980

    Est. $1,401/mo

    Everett Buick GMC

    4.5
    Bryant, AR (38 mi)
    Check Availability
  • 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

    $73,518

    MSRP $80,420

    Est. $1,391/mo

    Everett Buick GMC

    4.5
    Bryant, AR (38 mi)
    Check Availability
  • 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

    $73,976

    MSRP $80,915

    Est. $1,400/mo

    Everett Buick GMC

    4.5
    Bryant, AR (38 mi)
    Check Availability
  • 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

    $73,527

    MSRP $80,430

    Est. $1,391/mo

    Everett Buick GMC

    4.5
    Bryant, AR (38 mi)
    Check Availability
  • 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

    $73,976

    MSRP $80,915

    Est. $1,400/mo

    Everett Buick GMC

    4.5
    Bryant, AR (38 mi)
    Check Availability
  • 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

    $74,175

    MSRP $81,130

    Est. $1,404/mo

    Everett Buick GMC

    4.5
    Bryant, AR (38 mi)
    Check Availability
  • 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

    $74,036

    MSRP $80,980

    Est. $1,401/mo

    Everett Buick GMC

    4.5
    Bryant, AR (38 mi)
    Check Availability
  • 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

    $74,175

    MSRP $81,130

    Est. $1,404/mo

    Everett Buick GMC

    4.5
    Bryant, AR (38 mi)
    Check Availability
  • 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

    $73,976

    MSRP $80,915

    Est. $1,400/mo

    Everett Buick GMC

    4.5
    Bryant, AR (38 mi)
    Check Availability

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 $72,500.

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 $72,500 Starting at $72,700
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)

2026 GMC Sierra 2500 AT4 by city

2026 GMC Sierra 2500 trims