2026 GMC Sierra 2500 HD AT4X



In Stock
Special Offer
  • MSRP: $99,025
  • Doc Fee $225
  • The Bruner Advantage with Lifetime Powertrain Coverage = No Charge*

    • Add. Offers you may Qualify For:
    • -$500
    • -$500
  • *Please Note: We turn our inventory daily, please check with the dealer to confirm vehicle availability.

    • 4.9% for 48 mo.

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Vehicle Information

VIN: 1GT4UZEY1TF319661
Stock #: 260869
Model Code: TK20743
  • Condition New
  • Body Style Crew Cab
  • Exterior Color Sterling Metallic
  • Interior Color Obsidian Rush, Full Grain Leather Seat Trim
  • Engine 6.6L Duramax Turbo-Diesel V8 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
Command attention and conquer tough terrain in this 2026 GMC Sierra 2500 AT4X, a premium heavy-duty pickup engineered for serious capability and refined comfort. Located in Stephenville TX, this powerful 4WD truck is built to handle demanding jobs, rugged trails, and everyday driving with confidence. Under the hood, the proven V8 6.6L Diesel engine delivers the strength you want for towing, hauling, and hard-working performance, while the AT4X Off-Road Package adds the durability and trail-ready confidence serious drivers appreciate. Inside, the GMC Sierra 2500 AT4X surrounds you with upscale features and smart technology designed to keep every drive easier and more enjoyable. Stay connected and in control with Steering Wheel Audio Controls, while the BOSE Stereo creates a rich, immersive listening experience. The Back-Up Camera helps make parking and maneuvering more convenient, and Cross-Traffic Alert adds an extra layer of awareness when backing out in busy areas. With bold GMC styling, aggressive AT4X details, and the capability of 4WD, this 2026 GMC Sierra 2500 is ready for work sites, weekend adventures, and everything in between. If you're searching for a heavy-duty diesel truck in Stephenville TX with standout features, rugged performance, and premium comfort, this GMC Sierra 2500 AT4X deserves a closer look. Experience the strength, technology, and confidence that set it apart.

Equipment
This vehicle has auto-adjust speed for safe following. This vehicle is pure luxury with a heated steering wheel. Never get into a cold vehicle again with the remote start feature on the vehicle. This GMC Sierra features a high end BOSE stereo system. It's Lane Departure Warning helps keep you in your lane. Bluetooth® technology is built into this unit, keeping your hands on the steering wheel and your focus on the road. Protect this 2026 GMC Sierra 2500 from unwanted accidents with a cutting edge backup camera system. It's Cross-Traffic Alert: Safeguarding you from unexpected traffic when reversing. The steering wheel audio controls on the vehicle keep the volume and station within easy reach. Apple CarPlay: Seamless smartphone integration for this GMC Sierra - stay connected and entertained on the go! An off-road package is installed on this vehicle so you are ready for your four-wheeling best. with XM/Sirus Satellite Radio you are no longer restricted by poor quality local radio stations while driving this 2026 GMC Sierra 2500. Anywhere on the planet, you will have hundreds of digital stations to choose from.

Packages
Preferred Equipment Group 4SG: Trailer Side Blind Zone Alert; SiriusXM with 360L Trial Subscription; Power Sliding Rear Window with Defogger; Safety Alert Seat; Ultrasonic Front and Rear Park Assist; Trailer Cam Provisions and Trailer Viewing Software; Electric Rear-Window Defogger; Gloss Black Header Grille and Grille Insert Bars; Unauthorized Entry Theft-Deterrent System; Inside Rearview Auo-Dimming Rear Camera Mirror; Front Rain-Sensing Wipers; 120-Volt Instrument Panel Power Outlet; LED Smoked Amber Roof Marker Lamps; Heated Driver and Front Outboard Passenger Seats; Wireless Charging; Front Premium Floor Liners with Removable Carpet Insert; Rear Premium Floor Liners with Removable Carpet Insert; OnStar Services Capable; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; HD Surround Vision; Ventilated Driver and Front Passenger Sea

Eligible Benefits

No Monthly Payments Until Next Year for Well-Qualified Buyers When Financed w/ GM Financial

All Features

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


    • 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 & 6.6L 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 & 6.6L 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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