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2026 GMC Sierra 2500 HD AT4



In Stock
  • $91,425 FINAL PRICE


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Vehicle Information

Stock #: 260136
Model Code: TK20743
  • Condition New
  • Body Style Crew Cab
  • Exterior Color Onyx Black
  • Interior Color Jet Black With Kalahari Accents, Perforated Front Leather Seat Trim
  • Engine 6.6L Duramax Turbo-Diesel V8 engine
  • Transmission Automatic / 4WD
  • Fuel Type Diesel Fuel

Highlighted Features

Feature availability subject to final vehicle configuration. Please reference window sticker for more info.

Dealer Comments

Onyx Black 2026 GMC Sierra 2500HD AT4 4WD 10-Speed Automatic Duramax 6.6L V8 Turbodiesel
10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather.

All Features

AT4 Premium Plus Package

    LPO, Black Badging Package

      Gooseneck / 5th Wheel Prep Package -- Hitch platform to accept Gooseneck or 5th Wheel hitch.

        LPO, Hitch Package


          • DriveType
            • DriveType: Four Wheel Drive
          • Fuel Economy
            • City: 0 MPG
            • Hwy: 0 MPG
            • Combined: 0 MPG
          • Fuel System
            • Fuel System: Direct Injection
          • Fuel Tank Capacity
            • Fuel Tank Capacity: 36 gal
          • Fuel Type
            • Fuel Type: Diesel Fuel
          • Horse Power
            • Horse Power: 470
          • Rear Wheel
            • Rear Wheel: Single
          • Trailering Capacity
            • Trailering Capacity: 18500 lbs

          Warranty

          • Corrosion: 3 Years/36,000 Miles Rust-Through 6 Years/100,000 Miles
          • Roadside Assistance: 5 Years/60,000 Miles 3.0L & 6.0L Duramax® Turbo-Diesel Engines, And Certain Commercial, Government, And Qualified Fleet Vehicles: 5 Years/100,000 Miles
          • Drivetrain: 5 Years/60,000 Miles 3.0L & 6.0L Duramax® Turbo-Diesel Engines, And Certain Commercial, Government, And Qualified Fleet Vehicles: 5 Years/100,000 Miles
          • Warranty: <<< Preliminary 2026 Warranty >>>
          • Basic: 3 Years/36,000 Miles
          • Maintenance: First Visit: 12 Months/12,000 Miles
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          May not represent actual vehicle. (Options, colors, trim and body style may vary)

          The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.