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  • Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4

    $83,503

    MSRP $91,994

    Est. $1,530/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
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  • Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4

    $83,946

    MSRP $92,489

    Est. $1,539/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
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  • Sterling Metallic 2026 GMC Sierra 3500 AT4Sterling Metallic 2026 GMC Sierra 3500 AT4Sterling Metallic 2026 GMC Sierra 3500 AT4Sterling Metallic 2026 GMC Sierra 3500 AT4Sterling Metallic 2026 GMC Sierra 3500 AT4Sterling Metallic 2026 GMC Sierra 3500 AT4

    $83,740

    MSRP $92,259

    Est. $1,535/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 3500 AT4Sterling Metallic 2026 GMC Sierra 3500 AT4Sterling Metallic 2026 GMC Sierra 3500 AT4Sterling Metallic 2026 GMC Sierra 3500 AT4Sterling Metallic 2026 GMC Sierra 3500 AT4Sterling Metallic 2026 GMC Sierra 3500 AT4

    $83,946

    MSRP $92,489

    Est. $1,539/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4

    $84,130

    MSRP $92,689

    Est. $1,542/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4

    $83,740

    MSRP $92,259

    Est. $1,535/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
    Quick view
  • Volcanic Red Tintcoat 2026 GMC Sierra 3500 AT4Volcanic Red Tintcoat 2026 GMC Sierra 3500 AT4Volcanic Red Tintcoat 2026 GMC Sierra 3500 AT4Volcanic Red Tintcoat 2026 GMC Sierra 3500 AT4Volcanic Red Tintcoat 2026 GMC Sierra 3500 AT4Volcanic Red Tintcoat 2026 GMC Sierra 3500 AT4

    $84,080

    MSRP $92,639

    Est. $1,541/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4

    $82,095

    MSRP $90,415

    Est. $1,505/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4

    $83,740

    MSRP $92,259

    Est. $1,535/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
    Quick view
  • Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4

    $83,297

    MSRP $91,764

    Est. $1,527/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
    Quick view
  • Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4

    $83,297

    MSRP $91,764

    Est. $1,527/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4

    $89,534

    $500

    MSRP $92,534

    Est. $1,641/mo

    Tasca Buick GMC Clearwater

    4.8
    Check Availability
    Clearwater, FL (27 mi)
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  • Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4Onyx Black 2026 GMC Sierra 3500 AT4

    $85,289

    $1K

    MSRP $92,289

    Est. $1,563/mo

    Tasca Buick GMC Palm Harbor

    4.7
    Check Availability
    Palm Harbor, FL (27 mi)
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  • Summit White 2026 GMC Sierra 3500 AT4

    $83,297

    MSRP $91,764

    Est. $1,527/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 3500 AT4

    $83,946

    MSRP $92,489

    Est. $1,539/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
    Quick view
  • Summit White 2026 GMC Sierra 3500 AT4

    $83,687

    MSRP $92,194

    Est. $1,534/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
    Quick view
  • Summit White 2026 GMC Sierra 3500 AT4

    $82,608

    MSRP $90,994

    Est. $1,514/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 3500 AT4

    $83,946

    MSRP $92,489

    Est. $1,539/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
    Quick view
  • Onyx Black 2026 GMC Sierra 3500 AT4

    $83,946

    MSRP $92,489

    Est. $1,539/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
    Quick view
  • Summit White 2026 GMC Sierra 3500 AT4

    $83,503

    MSRP $91,994

    Est. $1,530/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
    Quick view
  • Summit White 2026 GMC Sierra 3500 AT4

    $83,503

    $8.4K

    MSRP $91,994

    Est. $1,530/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
    Quick view
  • Sterling Metallic 2026 GMC Sierra 3500 AT4

    $83,946

    MSRP $92,489

    Est. $1,539/mo

    Rivard Buick GMC

    4.8
    Check Availability
    Tampa, FL (4 mi)
    Quick view
  • Sterling 2026 GMC Sierra 3500 AT4Sterling 2026 GMC Sierra 3500 AT4Sterling 2026 GMC Sierra 3500 AT4Sterling 2026 GMC Sierra 3500 AT4Sterling 2026 GMC Sierra 3500 AT4Sterling 2026 GMC Sierra 3500 AT4

    $84,409

    $1K
    Est. $1,547/mo

    Laura Buick GMC

    4.6
    Check Availability
    $1,726 delivery from Collinsville, IL (863 mi)
    Quick view
  • Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4Summit White 2026 GMC Sierra 3500 AT4

    $79,857

    $1K
    Est. $1,464/mo

    Laura Buick GMC

    4.6
    Check Availability
    $1,726 delivery from Collinsville, IL (863 mi)
    Quick view

About the 2026 GMC Sierra 3500 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 3500 AT4
FAQs

How much does the 2026 GMC Sierra 3500 AT4 cost?

The 2026 GMC Sierra 3500 AT4 price depends on optional features. Prices typically start at $73,400.

What are some similar vehicles and competitors of the 2026 GMC Sierra 3500 AT4?

The 2026 GMC Sierra 3500 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 $73,400 Starting at $73,600
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 3500 AT4 by city

GMC Sierra 3500 trims