Used 2021 Gmc Sierra 1500 AT4

 43,043 miles
 Diesel
 Northglenn, CO

$41,590

AI Analysis:

$42,994 average market price. You save $1,404 (3%). 

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Key Features

Mileage

43,043 miles

Drivetrain

4WD

Engine

3L I6 DOHC Turbo

Transmission

10 Speed Automatic

Fuel Type

Diesel

MPG

22 / 26

Color

Summit White / Jet Black With Kalahari Accents

Title

Clean

Contact Seller

O'

O'Meara Ford

400 W. 104th Ave.

Northglenn, CO 80234

Financing Available

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$704 / month

  • Rates as low as 4.09% APR

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  • Same-day approval

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Dealer Description

Discover the ultimate off-road companion in this 2021 GMC Sierra 1500 AT4. With its rugged good looks, impressive capabilities, and premium features, this truck is ready to conquer any terrain and elevate your driving experience. Powered by a robust 3.0L I6 engine paired with a smooth-shifting 10-speed automatic transmission, this Sierra 1500 AT4 delivers an impressive 22 city/26 highway MPG, making it both capable and efficient. The advanced 4WD system and off-road-tuned suspension ensure you can tackle any terrain with confidence, while the premium Bose sound system and intuitive infotainment system keep you entertained and connected on the go. Step inside the spacious cabin and you'll be surrounded by thoughtful details, including heated and ventilated front seats, a heated steering wheel, and a host of advanced safety and convenience features. The AT4 Preferred Package and Trailering Package further enhance this truck's versatility, with additions like an integrated trailer brake controller, hitch guidance, and a spray-on bedliner. Whether you're hauling heavy loads, venturing off-road, or simply enjoying the daily commute, this 2021 GMC Sierra 1500 AT4 is the perfect companion. Experience the perfect blend of capability, technology, and comfort. Visit our showroom today to take this exceptional truck for a test drive and discover how it can elevate your driving experience.

Features & Options

  • AT4 Preferred Package
  • Preferred Equipment Group 4SB
  • Trailering Package
  • Premium Bose 7-Speaker Sound System
  • Premium GMC Infotainment System with Navigation
  • Steering Wheel Audio Controls
  • Electric Rear-Window Defogger
  • Keyless Open & Start
  • Power Door Locks
  • Hill Descent Control
  • Theft Deterrent System
  • Auxiliary External Transmission Oil Cooler
  • Heavy-Duty Air Filter
  • Body-Color Surround Grille
  • LED Cargo Area Lighting
  • ProGrade Trailering System
  • Rear Wheelhouse Liners
  • Spray-On Pickup Bed Liner with AT4 Logo
  • Off-Road Suspension
  • Integrated Trailer Brake Controller
  • Hitch Guidance

Vehicle History Report

VIN: 1GTU9EET3MZ407349

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

Seller Details

Listed 1/23/2026

View original listing
O'

O'Meara Ford

400 W. 104th Ave.

Northglenn, CO 80234

Phone

720-647-**** Show number

Email

omeara_s****@omearaford.com Show email

Location

Contact Seller

O'

O'Meara Ford

400 W. 104th Ave.

Northglenn, CO 80234

Financing Available

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

$704 / month

  • Rates as low as 4.09% APR

  • Browse multiple offers

  • Same-day approval

Get pre-qualified

Powered by MyAutoLoan.

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