Used 2020 Gmc Sierra 1500 SLT

 90,802 miles
 Diesel
 Harvey, LA

$31,400

AI Analysis:

$34,496 average market price. You save $3,096 (9%). 

View Full Analysis.

Key Features

Mileage

90,802 miles

Drivetrain

4WD

Engine

3L I6 DOHC Turbo

Transmission

N/A

Fuel Type

Diesel

MPG

15 / 20

Color

Dark Sky Metallic

Title

Clean

Contact Seller

Le

Legacy West Bank Buick GMC

3611 lapalco blvd.

Harvey, LA 70058

Financing Available

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

$531 / month

  • Rates as low as 4.09% APR

  • Browse multiple offers

  • Same-day approval

Get pre-qualified

Powered by MyAutoLoan.

Curious what you can afford?

Avoid dealer markup and get straight to driving. Compare rates from multiple lenders instantly to ensure you’re getting the best deal possible.

Compare rates with MyAutoLoan

Dealer Description

If you're looking for a truck that works hard and cleans up nice, this 2020 GMC Sierra 1500 SLT is the one to see in person. Finished in Dark Sky Metallic over a Jet Black leather interior, this Sierra is powered by the highly sought-after 3.0L Duramax Turbo-Diesel paired with a 10-speed automatic transmission delivering incredible torque, smooth highway driving, and an impressive up to 26 MPG highway. Its the perfect blend of power, efficiency, and long-term reliability. This truck is loaded with the Texas Edition SLT Premium Plus Package, giving you luxury-level comfort and advanced safety while keeping the toughness GMC is known for. Inside, enjoy heated and ventilated front seats, heated rear seats, a heated leather steering wheel, memory seating, dual-zone climate control, and a premium BOSE sound system. The GMC Premium Infotainment System with Navigation, Apple CarPlay, Android Auto, wireless charging, and multiple USB ports keep you connected wherever the road takes you. On the outside, this Sierra stands out with chrome assist steps, spray-on bedliner, LED lighting throughout, and the game-changing GMC MultiPro Tailgate one of the most functional tailgates ever put on a pickup. The trailer package with integrated brake controller, auto-locking rear differential, and 4WD with terrain mode make it ready for towing, hauling, or weekend adventures. Safety is fully covered with Forward Collision Alert, Automatic Emergency Braking, Lane Keep Assist, Blind Zone Alert, Rear Cross Traffic Alert, front and rear park assist, and HD rear vision camera giving you confidence whether you're on the highway or backing into a tight spot. This Sierra originally stickered at over $60,000, and it shows in every detail. If you want a diesel truck that's comfortable enough for daily driving and capable enough for serious work, this one checks every box. Come see it in person—you'll understand why the Duramax Sierra is one of the most sought-after half-ton trucks on the road.

Features & Options

  • Adaptive Cruise Control
  • Bluetooth®
  • 4WD/AWD
  • Android Auto
  • Apple CarPlay
  • Aux Input
  • Heated Seats
  • Leather Seats
  • Automatic High Beams
  • Lane Departure Warning
  • Lane Keep Assist
  • Wireless Phone Charging
  • Blind Spot Monitor
  • Forward Collision Warning
  • Navigation System
  • Parking Assistance

Vehicle History Report

VIN: 3GTU9DET4LG280863

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

Seller Details

Listed 1/19/2026

View original listing
Le

Legacy West Bank Buick GMC

3611 lapalco blvd.

Harvey, LA 70058

Phone

504-662-**** Show number

Location

Contact Seller

Le

Legacy West Bank Buick GMC

3611 lapalco blvd.

Harvey, LA 70058

Financing Available

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

$531 / month

  • Rates as low as 4.09% APR

  • Browse multiple offers

  • Same-day approval

Get pre-qualified

Powered by MyAutoLoan.

Explore More Options