2026 GMC Sierra 2500 HD AT4X



In Stock
Special Offer
  • $99,195 FINAL PRICE

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Vehicle Information

VIN: 1GT4UZEY1TF257758
Stock #: 260494
Model Code: TK20743
  • Condition New
  • Body Style Crew Cab
  • Exterior Color Coastal Dune
  • 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
2026 GMC Sierra 2500 AT4X 4WD - powerful presence meets refined capability in Stephenville, TX. This diesel-powered workhorse features a robust V8, 6.6L Duramax engine delivering exceptional torque and towing confidence for heavy-duty jobs and weekend adventures. Built for rugged terrain, the AT4X suspension and 4WD system provide composed off-road performance while maintaining a comfortable, well-appointed cabin. Inside, premium features elevate every drive: BOSE stereo sound brings concert-quality audio; Apple CarPlay integration keeps navigation and media seamless; steering wheel audio controls let you stay connected without distraction. Remote start ensures the cabin is ready when you are, and adaptive cruise control adds highway convenience and safety for long hauls. With thoughtful design and modern technology, this GMC Sierra 2500 balances capability and comfort - from hauling trailers to daily commutes. The exterior stance and functional bed options make it a versatile choice for contractors, outdoor enthusiasts, and anyone needing serious capability without sacrificing refinement. Located in Stephenville, TX, this GMC Sierra 2500 AT4X is priced to move and represents the best price available in the area for comparable diesel-powered heavy-duty trucks. If you want maximum towing performance, premium tech, and rugged off-road readiness in one commanding package, this 2026 GMC Sierra 2500 AT4X is ready to exceed expectations. Contact today to schedule a test drive.

Equipment
This 2026 GMC Sierra 2500's Cross-Traffic Alert: Safeguarding you from unexpected traffic when reversing. The GMC Sierra offers Apple CarPlay for seamless connectivity. This GMC Sierra is pure luxury with a heated steering wheel. Engulf yourself with the crystal clear sound of a BOSE sound system in this 2026 GMC Sierra 2500. This unit comes equipped with Android Auto for seamless smartphone integration on the road. Start it from inside with remote start. This 2026 GMC Sierra 2500 is equipped with the latest generation of XM/Sirius Radio. Protect this 3/4 ton pickup from unwanted accidents with a cutting edge backup camera system. It features steering wheel audio controls. An off-road package is equipped on this 2026 GMC Sierra 2500. This GMC Sierra's Lane Departure Warning keeps you safe by alerting you when you drift from your lane. Bluetooth® technology is built into this vehicle, keeping your hands on the steering wheel and your focus on the road.

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 Seats; Manual Tilt-Wheel/telescoping Steering Column; Power Sunroof; Multicolor

All Features

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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