2021 GMC Sierra 1500 Denali



  • $34,554 PRICE

  • Price: $34,329
  • Documentation Fee: +$225
  • Total Price: $34,554
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Vehicle Information

VIN: 3GTU9FETXMG310333
Stock #: 261665A
Model Code: TK10543
  • Condition Used
  • Body Style Crew Cab
  • Exterior Color Onyx Black
  • Interior Color Jet Black, Forge Perforated Leather Seat Trim
  • Mileage 111,657
  • Fuel Economy
    City/Highway 15/20 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

The 2021 GMC Sierra 1500 Denali is engineered for long-term ownership value, combining a proven diesel powertrain, advanced features, and a reputation for durability that keeps cost of ownership in check.

Pragmatic buyers who prioritize reliability, durability, and overall value in a crew cab will appreciate the Sierra Denali’s blend of robust engineering and premium amenities. With features like heated and ventilated front seats, a heated steering wheel, and a premium Bose audio system, it delivers both comfort and utility. Its adaptive ride control suspension and advanced trailering technologies make it just as suited for demanding job sites as for comfortable commuting or weekend tasks in regions like Central Texas where weather and terrain can be unpredictable.

This truck is powered by a 3.0L I6 diesel engine paired with a 10-speed automatic transmission and 4WD, ensuring a balance of efficiency and long-term reliability. The powertrain is known for its longevity, with GMC trucks frequently recognized for maintaining dependable performance well beyond typical service intervals. An EPA-estimated 22 MPG city and 26 MPG highway reinforce its reputation as a cost-effective choice for those who drive frequently or haul loads regularly, helping owners keep fuel expenses manageable.

Long-term safety and investment protection are supported by a comprehensive suite of active safety systems. The Sierra Denali features Automatic Emergency Braking, Lane Keep Assist with Lane Departure Warning, Forward Collision Alert, Following Distance Indicator, Front Pedestrian Braking, and IntelliBeam Automatic High Beam On/Off. These technologies work together to help drivers avoid collisions and reduce the likelihood of costly repairs, contributing to lower insurance claims and improved peace of mind.

Inside, the Denali Ultimate Package and Driver Alert Package I bring a host of premium and practical features. The multicolor 15-inch diagonal head-up display, HD Surround Vision with trailer camera provisions, Bed View Camera, and Rear Camera Mirror all enhance usability and visibility, especially when trailering or maneuvering in tight spaces. Apple CarPlay and Android Auto integration, navigation, dual-zone automatic climate control, and genuine wood interior accents elevate the daily driving experience with both style and function.

Compared with other crew cab trucks like the Ford F-150 Platinum and Ram 1500 Limited, the Sierra 1500 Denali stands out for its unique combination of a durable diesel engine, high-end interior appointments, and advanced trailering technology. Owners can expect strong resale value and a reputation for reliability, which helps offset depreciation and supports a lower total cost of ownership over time—especially when compared to gas-powered alternatives in the same segment.

Common ownership questions are addressed with specific data: The EPA-estimated 22 MPG city and 26 MPG highway make it one of the more efficient full-size diesel trucks available. GMC’s track record for long-term reliability is backed by a transferable 5-year/100,000-mile diesel powertrain warranty and 6-year/100,000-mile corrosion coverage.

For those ready to lower their long-term ownership costs with a proven, feature-rich truck, contact Covert Chevrolet Bastrop at (512) 308-3161 or visit 702 State Hwy 71, Bastrop, TX 78602. The Sierra 1500 Denali offers a smart blend of rugged capability and upscale amenities designed to deliver value for years to come.

Eligible Benefits

All Features

  • DriveType
    • DriveType: Four Wheel Drive
  • Fuel Economy
    • City: 15 MPG
    • Hwy: 20 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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*New vehicle pricing includes all offers and incentives. Tax, title, license, and fees are not included in the prices shown and must be paid by the purchaser. Pricing and discounts do not include dealer-added accessories, aftermarket products, or dealer addendums. Additional costs from these addendums may apply. See dealer for complete details. While every effort is made to ensure the accuracy of the information on this site, errors can occur. Please verify all information with a customer service representative by calling 512-759-1515 or visiting us at the dealership. All Manufacturer's Rebates may be subject to residency restrictions. Any customer not meeting the residency restrictions will receive a dealer discount in the same amount of the manufacturer's rebate. The Manufacturer’s Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price. 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.

The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.