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Reduced by $250 since Sep 11, 2026

2021 GMC Sierra 1500 SLT



  • $34,097 Crain Price

  • Retail Price $33,968
  • Service & Handling Fee +$129
  • Crain Price $34,097

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Vehicle Information

VIN: 3GTU9DET7MG428957
Stock #: 6GT0464A
Model Code: TK10543
  • Body Style Crew Cab
  • Exterior Color Onyx Black
  • Interior Color Jet Black, Perforated Leather-Appointed Front Outboard Seat Trim
  • Mileage 77,802
  • Fuel Economy
    City/Highway 14/20 MPG
  • Engine 6 Cyl - 3.0 L
  • Transmission Automatic
  • Fuel Type Diesel

Highlighted Features

Feature availability subject to final vehicle configuration. Please reference window sticker for more info.
  • Bluetooth®
  • 4WD/AWD
  • Android Auto
  • Apple CarPlay
  • Aux Input
  • Heated Seats
  • Leather Seats
  • Cruise Control

Dealer Comments

This 2021 GMC Sierra 1500 SLT delivers capability and refinement in one impressive package. Finished in stunning Onyx Black, this truck is equipped with a powerful 3.0L turbocharged diesel I-6 engine and 10-speed automatic transmission, returning 22 city and 26 highway MPG. With 77,802 miles and backed by premium features from the Texas Edition SLT and X31 Off-Road packages, this Sierra is ready for work or weekend adventures.

Key Features:
- 3.0L Turbocharged Diesel I-6 Engine with Engine Block Heater
- 4WD with Off-Road Suspension and Auto-Locking Rear Differential
- X31 Off-Road & Protection Package with Hill Descent Control
- Texas Edition SLT Premium Package with Badging
- Premium GMC Infotainment System with Apple CarPlay/Android Auto and SiriusXM 360L
- ProGrade Trailering System with Integrated Trailer Brake Controller and Hitch Guidance
- Heated and Ventilated Leather Front Seats with 10-Way Power Adjusters
- Remote Vehicle Starter and Keyless Open & Start
- Spray-On Bed Liner and Chrome Assistance Steps
- Dual Zone Automatic Climate Control

This well-maintained Sierra combines genuine diesel efficiency with premium comfort appointments. The heated steering wheel, dual-zone climate control, and premium audio system enhance every drive, while the advanced suspension and trailering technology make hauling effortless. Inside, the spacious cab features heated and ventilated front seating, a user-friendly infotainment interface, and multiple charging ports for modern connectivity.

Experience this capable Sierra firsthand—visit us today to see how its blend of power and comfort can elevate your driving experience.

Call 501-436-4781 or visit www.crainteamconway.com We proudly serve the entire State of Arkansas, including Springdale, Fayetteville, Harrison, Mountain Home, Batesville, Jonesboro, West Memphis, Jacksonville, Helena, Little Rock, North Little Rock, Hot Springs, Mena, Malvern, Pine Bluff, Lake Village, Camden, Arkadelphia, Hope, Magnolia, Texarkana, El Dorado, Cabot, Conway, Searcy, Russellville, Fort Smith, Bryant, Benton, Hot Springs Village, and Bentonville.

Eligible Benefits

All Features

  • DriveType
    • DriveType: Four Wheel Drive
  • Fuel Economy
    • City: 14 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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May not represent actual vehicle. (Options, colors, trim and body style may vary)

Max payload/towing estimate ratings shown. Additional options, equipment, passengers, and cargo weight may affect payload/towing weights. See dealer for details.