2026 GMC Sierra 1500 AT4



In Stock
  • $72,025 FINAL PRICE

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Vehicle Information

VIN: 3GTUUEE83TG436147
Stock #: 260794
Model Code: TK10543
  • Condition New
  • Body Style Crew Cab
  • Exterior Color Onyx Black
  • Interior Color Jet Black With Kalahari Accents, Perforated Leather Front Seat Trim
  • Fuel Economy
    City/Highway 22/26 MPG
  • Engine 3.0L Duramax® Turbo Diesel engine
  • Transmission Automatic
  • Fuel Type Diesel Fuel

Highlighted Features

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

Dealer Comments

Vehicle Details
Take command of every drive in this 2026 GMC Sierra 1500 AT4, now available in Stephenville TX. Built for drivers who want rugged capability with premium comfort, this 4WD pickup is powered by a 6 Cyl, 3.0L Diesel engine that delivers confident performance for work, towing, and weekend adventure. The AT4 trim adds bold styling, off-road-ready attitude, and a refined cabin designed to keep you comfortable mile after mile. Inside, you'll find modern convenience and advanced technology, including Hands Free Bluetooth®, a BOSE Stereo, Adaptive Cruise Control, Lane Departure Warning, and a Back-Up Camera. Whether you're navigating busy streets or heading out on the ranch, this GMC Sierra 1500 offers the features you need to stay connected, aware, and in control. If you're searching for a 2026 GMC Sierra 1500 AT4 4WD diesel truck in Stephenville TX, this one deserves a closer look. With premium equipment, strong capability, and the trusted GMC reputation, it's a smart choice for drivers who want a full-size pickup that works hard and looks great doing it. Ideal for hauling, commuting, or exploring Texas backroads, this GMC Sierra delivers the versatility, comfort, and confidence buyers want in a modern diesel truck every day, season after season, too. Visit today to see why the GMC Sierra 1500 AT4 stands out.

Equipment
This model offers Android Auto for seamless smartphone integration. Keep your hands warm all winter with a heated steering wheel in this 1/2 ton pickup . This unit features a high end BOSE stereo system. The GMC Sierra offers Apple CarPlay for seamless connectivity. This GMC Sierra features steering wheel audio controls. Never get into a cold vehicle again with the remote start feature on this model. An off-road package is installed on this 2026 GMC Sierra 1500 so you are ready for your four-wheeling best. See what's behind you with the back up camera on the vehicle. It is equipped with the latest generation of XM/Sirius Radio. The installed navigation system will keep you on the right path. This GMC Sierra's Lane Departure Warning keeps you safe by alerting you when you drift from your lane. This vehicle has auto-adjust speed for safe following. Bluetooth® technology is built into it, keeping your hands on the steering wheel and your focus on the road.

Packages
AT4 Premium Package. Technology Package: Multicolor 15" Diagonal Head-Up Display; Bed View Camera; Rear Camera Mirror. Preferred Equipment Group 4SB: Trailer Side Blind Zone Alert; Ultrasonic Front and Rear Park Assist; Trailer Camera Provisions; Electric Rear-Window Defogger; Theft Deterrent System (unauthorized Entry); Black Chrome Grille Insert Bars; Front Rain-Sensing Wipers; Heavy-Duty Air Filter; Skid Plates; 120-Volt Interior Power Outlet; Heated Driver and Front Outboard Passenger Seating; Wireless Charging; Front Premium Floor Liners with Removable Carpet Insert; Color-Keyed Carpeting Floor Covering; OnStar Services Capable; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; Premium Bose 7-Speaker Sound System; Power Rear Windows with Express Down; Integrated Trailer Brake Controller; HD Surround Vision; Ventilated Driver and Front Passenger Seats; Power Rake and Telescoping Steering Column; Keyless Open and Start; Perimeter Lighting; Push Button Start; LED Cargo Area Lighting; Remote Vehicle Starter System; In-Vehicle Trailering System App; Hill Descent Control; 220 Am

All Features

Technology Package

    AT4 Premium Package


      • DriveType
        • DriveType: Four Wheel Drive
      • Fuel Economy
        • City: 22 MPG
        • Hwy: 26 MPG
        • Combined: 24 MPG
      • Fuel System
        • Fuel System: Direct Injection
      • Fuel Tank Capacity
        • Fuel Tank Capacity: 24 gal
      • Fuel Type
        • Fuel Type: Diesel Fuel
      • Horse Power
        • Horse Power: 305
      • Rear Wheel
        • Rear Wheel: Single
      • Trailering Capacity
        • Trailering Capacity: 8700 lbs

      Warranty

      • Corrosion: 3 Years/36,000 Miles Rust-Through 6 Years/100,000 Miles
      • Roadside Assistance: 5 Years/60,000 Miles Sierra TurbomaxTm Engines, 3.0L & 6.6L Duramax® Turbo-Diesel Engines, And Certain Commercial, Government, And Qualified Fleet Vehicles: 5 Years/100,000 Miles
      • Drivetrain: 5 Years/60,000 Miles Sierra TurbomaxTm Engines, 3.0L & 6.6L 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)