Used 2015 Gmc Sierra Denali

$23,488

Financing as low as $384 per month.

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Key Features

Mileage

102,000

Drivetrain

4WD

Engine

6.6L V8 Turbo

Transmission

Allison 1000 6 Speed Automatic

Fuel Type

Diesel

MPG

N/A

Color

Onyx Black / Cocoa/Dune

Title

Clean

Contact Seller

So

Southtowne Mitsubishi

10736 S. State Street

Sandy, UT 84070

By submitting this form, you agree to be contacted by the seller.

Dealer Description

After owning a 1500 Sierra and stepping up to a 2500 HD Diesel there is a night and day difference when towing, highway MPG is surprisingly good for a 8000lb vehicle, average between 20-24 depending on conditions. Towing mpg is much better than gas V8. No strain at all on vehicle when towing. Truck has been 100% reliable so far @ 19K with zero issues. Allison transmission is the best I ever used, nothing else compares to this transmission! I love my GMC. It is reliable, well built, comfortable (my wife loves to road trip in our GMC) and gets excellent mileage (20-24 MPG on the hi-way). The truck drives well and is very solid feeling. The Duramax/Allison duo is unmatched in my opinion.

Features & Options

  • Navigation system
  • Leather upholstery
  • Automatic temperature control
  • Emergency communication system
  • Wireless phone connectivity
  • Chrome wheels
  • Parking sensors
  • Exterior parking camera rear
  • Front dual zone A/C
  • Auto-dimming rearview mirror
  • Split folding rear seat
  • Memory seat
  • Denali Decor
  • 18" Chromed Aluminum Wheels
  • Wheels: 20" Chrome Cast Aluminum
  • Front Full Feature Bucket Seats
  • Heated Driver & Front Passenger Seats
  • Heated & Cooled Front Bucket Seats
  • Radio: AM/FM/SiriusXM w/Navigation
  • Duramax Plus Package
  • Driver Alert Package

Vehicle History Report

VIN: 1GT120E8XFF631969

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Seller Details

Listed 10/3/2025

View original listing
So

Southtowne Mitsubishi

10736 S. State Street

Sandy, UT 84070

Phone

801-572-3100

Location

Contact Seller

So

Southtowne Mitsubishi

10736 S. State Street

Sandy, UT 84070

By submitting this form, you agree to be contacted by the seller.

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