Used 2021 Gmc Sierra 1500 AT4

 139,598 miles
 Gas
 Columbia, MS

$35,392

AI Analysis:

$30,999 average market price. 

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Key Features

Mileage

139,598 miles

Drivetrain

4WD

Engine

6.2L V8

Transmission

10 Speed Automatic

Fuel Type

Gas

MPG

15 / 19

Color

Dark Sky Metallic / Jet Black With Kalahari Accents

Title

Clean

Contact Seller

Wa

Walt Massey

1470 Hwy 98 E

Columbia, MS 39429

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$599 / month

  • Rates as low as 4.09% APR

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Dealer Description

The 2021 GMC Sierra 1500 AT4 Crew Cab blends rugged off-road capability with upscale refinement, delivering a truck that's as comfortable on the trails as it is on the highway. Finished in a striking Summit White exterior, the Sierra AT4 commands attention with its bold black chrome grille, red recovery hooks, and signature C-shaped LED headlamps that define its aggressive, athletic stance. The muscular body lines, 18-inch machined aluminum wheels with Goodyear Wrangler DuraTrac all-terrain tires, and unique AT4 badging emphasize its adventurous spirit, while body-color bumpers and black accents provide a sleek, modern finish. With a factory lift and off-road suspension, the AT4 stands tall, confident, and ready for anything. Under the hood, the Sierra AT4 is powered by the robust 5.3-liter EcoTec3 V8 engine paired with a 10-speed automatic transmission, delivering 355 horsepower and 383 lb-ft of torque. The engine's Dynamic Fuel Management system enhances efficiency without compromising performance. GMC's advanced 4WD system with a two-speed transfer case ensures traction in all conditions, while the off-road-tuned Rancho monotube shocks and Eaton locking rear differential provide confidence over challenging terrain. Hill Descent Control and the integrated trailering package make towing and trail driving effortless. Built for strength and precision, the Sierra AT4 balances raw power with refined control, making it an exceptional choice for drivers who crave adventure with sophistication. Inside, the AT4's cabin redefines off-road luxury with premium materials and advanced technology. The spacious Crew Cab features Jet Black leather-appointed seats accented with Kalahari stitching, creating a bold yet elegant interior theme exclusive to the AT4 trim. Both front seats are heated and ventilated, while the heated steering wheel and heated rear seats ensure comfort in every season. The 8-inch GMC Infotainment System touchscreen integrates Apple CarPlay, Android Auto, Bluetooth, and navigation for seamless connectivity. Additional features include a wireless charging pad, dual-zone automatic climate control, and a power sliding rear window. A premium Bose sound system delivers rich, immersive audio, while thoughtful details like real aluminum trim and soft-touch surfaces add refinement to its rugged nature. Safety and innovation are integral to the AT4's design, equipped with GMC's Pro Safety suite that includes Forward Collision Alert, Lane Keep Assist with Lane Departure Warning, Automatic Emergency Braking, and Front Pedestrian Braking. The HD Rear Vision Camera and available HD Surround Vision enhance visibility when maneuvering, while Trailer Sway Control, Hill Start Assist, and StabiliTrak electronic stability control ensure confidence while towing or off-roading. The truck's bed is both durable and functional, featuring LED lighting, a spray-in bedliner, and the MultiPro Tailgate with six unique configurations for easy loading, unloading, and workspace flexibility. As part of the Walt Massey family of dealerships, this Sierra qualifies for a complimentary 3-month/3,000-mile powertrain warranty on eligible used cars through Owner Services, Inc. This description combines information from multiple sources to provide a complete and accurate description of the vehicle.

Features & Options

  • AWD
  • Adaptive Cruise Control
  • Android Auto
  • Apple CarPlay
  • Automatic Climate Control
  • Moon Roof (Blind Spot Monitor)
  • Navigation System

Vehicle History Report

VIN: 1GTP9EEL0MZ317010

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

Seller Details

Listed 1/3/2026

View original listing
Wa

Walt Massey

1470 Hwy 98 E

Columbia, MS 39429

Phone

601-731-**** Show number

Location

Contact Seller

Wa

Walt Massey

1470 Hwy 98 E

Columbia, MS 39429

Financing Available

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

$599 / month

  • Rates as low as 4.09% APR

  • Browse multiple offers

  • Same-day approval

Get pre-qualified

Powered by MyAutoLoan.

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