2026 GMC Sierra 1500 AT4



In Transit
  • $73,120 FINAL PRICE

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Vehicle Information

VIN: 1GTUUEE84TZ397553
Stock #: 260634
Model Code: TK10543
  • Condition New
  • Body Style Crew Cab
  • Exterior Color Coastal Dune
  • Interior Color Jet Black With Kalahari Accents, Perforated Leather Front Seat Trim
  • Fuel Economy
    City/Highway 21/24 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
2026 GMC Sierra 1500 AT4 4WD - located in Stephenville, TX - a rugged, refined pickup built for both work and weekend adventure. Powered by a stout 6-cylinder 3.0L diesel engine and equipped with 4-wheel drive, this GMC Sierra AT4 blends diesel torque with confident off-road capability. The Off-Road Package adds upgraded suspension and underbody protection, giving you control on rough trails and gravel roads. Inside, premium leather seats provide comfort for long drives, while navigation and Hands Free Bluetooth® keep you connected and on course without distraction. Adaptive Cruise Control enhances highway driving by maintaining set distances from traffic, reducing driver fatigue on extended trips. The cabin layout balances utility and modern convenience with durable materials and smart storage. Exterior design cues signal capability and presence with a bold grille and AT4-specific trim. Practical features include tow-ready hardware and a versatile bed for hauling gear, tools, or outdoor equipment. Whether you're heading out for a weekend off-road excursion or tackling daily towing and hauling tasks, this GMC Sierra AT4 delivers strength, technology, and comfort. Located in Stephenville, TX, this 2026 GMC Sierra 1500 AT4 4WD with a 3.0L diesel is ready for test drives and inspections. Contact us to schedule your appointment and experience its performance firsthand.

Equipment
An off-road package is equipped on this 1/2 ton pickup. This 2026 GMC Sierra 1500 features steering wheel audio controls. Bluetooth® technology is built into it, keeping your hands on the steering wheel and your focus on the road. The leather seats in it are a must for buyers looking for comfort, durability, and style. The installed navigation system will keep you on the right path. This 1/2 ton pickup features a high end BOSE stereo system. This 1/2 ton pickup comes equipped with Android Auto for seamless smartphone integration on the road. with XM/Sirus Satellite Radio you are no longer restricted by poor quality local radio stations while driving this 2026 GMC Sierra 1500. Anywhere on the planet, you will have hundreds of digital stations to choose from. This 2026 GMC Sierra 1500 has auto-adjust speed for safe following. See what's behind you with the back up camera on this GMC Sierra.

Packages
AT4 Premium Package: Off-Road High Clearance Step. 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;

Eligible Benefits

Purchase Allowance

All Features

AT4 Premium Package

    Technology Package


      • DriveType
        • DriveType: Four Wheel Drive
      • Fuel Economy
        • City: 21 MPG
        • Hwy: 24 MPG
        • Combined: 23 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: 8800 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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