Reduced by $13,700 since May 29, 2026

2021 GMC Sierra 1500 AT4



  • $36,300 Alpine Price

    • +$690
  • Alpine Price $36,300



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Vehicle Information

VIN: 1GTU9EET6MZ242512
Stock #: TZ239931A
Model Code: TK10543
  • Body Style Crew Cab
  • Exterior Color Dark Sky Metallic
  • Interior Color Jet Black With Kalahari Accents, Perforated Leather Front Seat Trim
  • Mileage 113,838
  • Fuel Economy
    City/Highway 14/19 MPG
  • Engine Engine: Duramax 3.0L, Turbo-Diesel, Inline 6 Cylinder
  • Transmission Automatic
  • Fuel Type Diesel Fuel

Highlighted Features

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

Dealer Comments

Experience the exceptional capability and refined style of this 2021 GMC Sierra 1500 AT4. Crafted to conquer any terrain, this off-road-ready truck is equipped with a robust 3.0L I6 Duramax Diesel engine mated to a 10-speed automatic transmission, delivering impressive power and efficiency.

- SUNROOF, POWER
- TECHNOLOGY PACKAGE (Includes HD Surround Vision, Rear Camera Mirror, Bed View Camera, and Multicolor Head-Up Display)
- DRIVER ALERT PACKAGE II (Includes Forward Collision Alert, Lane Keep Assist, Automatic Emergency Braking, and more)
- AT4 VALUE PACKAGE (Includes AT4 Preferred Package, All-Terrain Tires, and Driver Alert Package)

The Sierra AT4's premium features elevate your driving experience, with a Bose 7-speaker sound system, wireless charging, and a host of advanced safety and technology systems. Enjoy the convenience of remote start, power-adjustable seating, and dual-zone climate control, all while surrounded by the rugged yet refined AT4 styling.

Whether tackling the daily commute or exploring off-road adventures, this 2021 GMC Sierra 1500 AT4 is the perfect companion. Experience the ultimate blend of capability, comfort, and confidence behind the wheel.

Alpine offers an unconventional experience with up front pricing, a non commissioned staff, no games, and a pain free auto shopping experience. Our focus is your satisfaction and making sure you walk out the door happy, with our without a vehicle. Only at Motor City, Only at Alpine! (719)636-3881 1313 Motor City Drive, Colorado Springs, CO 80905.

Eligible Benefits

All Features

  • DriveType
    • DriveType: Four Wheel Drive
  • Fuel Economy
    • City: 14 MPG
    • Hwy: 19 MPG
    • Combined: 16 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: 277
  • Rear Wheel
    • Rear Wheel: Single
  • Trailering Capacity
    • Trailering Capacity: 0
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Prices include all active discounts, incentives and $689.50 dealer handling fee. Prices exclude tax, tag, title, and dealer installed accessories. $2,495 for the Alpine package which includes window tint clear bra, alpine shield, road hazard, paintless dent repair, windshield repair, and nitro fill. Additional discounts and factory rebates may be applied depending on the zip code of where the vehicle will be titled. For the maximum discount, you must purchase from in-stock inventory and finance with Ford Motor credit. Ford Motor Credit rebates, APR, and lease rates can vary based on zip code and individual credit score. While we make every effort to ensure the information listed on our website is correct, there may be instances of errors resulting in vehicle prices, options, and/or features to be listed incorrectly. The dealer is not responsible for any of these errors. Please contact a dealership sales representative for additional details and to verify the accuracy of the information on this website.

Although every reasonable effort has been made to ensure the accuracy of the information contained on this site, absolute accuracy cannot be guaranteed. This site, and all information and materials appearing on it, are presented to the user "as is" without warranty of any kind, either express or implied. All vehicles are subject to prior sale. Price does not include applicable tax, title, and license charges. ‡Vehicles shown at different locations are not currently in our inventory (Not in Stock) but can be made available to you at our location within a reasonable date from the time of your request, not to exceed one week.