Used 2024 Gmc Sierra AT4

 55,753 miles
 Diesel
 Denver, CO

$68,990

AI Analysis:

$63,978 average market price. 

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Key Features

Mileage

55,753 miles

Drivetrain

4WD

Engine

6.6L V8 Turbo

Transmission

Allison 10 Speed Shiftable Automatic

Fuel Type

Diesel

MPG

N/A

Color

Summit White / Jet Black With Kalahari Accents

Title

Clean

VIN

1GT49PEY5RF122751

Contact Seller

Mi

Mile High Car Helper

1709 S. Acoma St.

Denver, CO 80223

Financing Available

Pre-qualification takes just minutes. Compare multiple offers and save!

$1,168 / month

  • Rates as low as 4.09% APR

  • Browse multiple offers

  • Same-day approval

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Dealer Description

This 2024 GMC Sierra 2500HD AT4 is a purpose-built heavy-duty truck combining Duramax diesel power with premium off-road capability and refined comfort. If you’re searching for a used vehicle in Denver, Colorado, this one stands out with strong service history, excellent condition, and highly desirable factory packages. CARFAX shows a clean history with no accidents reported, consistent maintenance, and ownership in Texas and Colorado. Finished in Summit White with the AT4-exclusive interior, this truck is equally at home towing, traveling, or handling mountain terrain with confidence. Fully serviced, professionally detailed, and road-ready — this vehicle represents Mile High Car Helper’s commitment to quality, value, and transparency.

Features & Options

  • Duramax diesel delivers outstanding torque and towing capability
  • AT4 off-road hardware enhances traction and confidence on rough terrain
  • Premium interior with heated and ventilated seating improves comfort year-round
  • Advanced trailering technology simplifies towing and hauling
  • Power assist steps and MultiPro tailgate improve everyday usability
  • Head-up display and surround vision add safety and convenience
  • Heavy-duty build quality designed for long-term ownership
  • Technology Package with Head-Up Display
  • Power Sunroof
  • Power Retractable Assist Steps
  • Heated and Ventilated Front Seats
  • Heated Rear Seats and Heated Steering Wheel
  • Bose Premium Sound System
  • GMC MultiPro Tailgate
  • Spray-In Bedliner with AT4 Logo
  • HD Surround Vision and Trailer Side Blind Zone Alert

Vehicle History Report

VIN: 1GT49PEY5RF122751

Check this vehicle's history for accidents, service records, ownership, and more.

Seller Details

Listed 2/17/2026

View original listing
Mi

Mile High Car Helper

1709 S. Acoma St.

Denver, CO 80223

Phone

720-328-**** Show number

Email

s****@milehighcarhelper.com Show email

Location

Contact Seller

Mi

Mile High Car Helper

1709 S. Acoma St.

Denver, CO 80223

Financing Available

Pre-qualification takes just minutes. Compare multiple offers and save!

$1,168 / month

  • Rates as low as 4.09% APR

  • Browse multiple offers

  • Same-day approval

Powered by MyAutoLoan.

Explore More Options