Legacy GMC · Slidell, LA

2021 GMC Yukon XL AT4

140,544 miles · suv · Listed 3 days ago on AutosXchange

Stock photo — actual vehicle may differ

1 / 16 photos

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2021

MakeGMC

ModelYukon XL

TrimXL AT4

VIN1GKS2HKD2MR163448

Stock number26G2378A

Mileage140,544 miles

BodySport Utility Vehicle [SUV]

Engine5.3L 8-cyl

Cylinders8

Displacement5.3L

TransmissionAutomatic

Drivetrain4WD

FuelGasoline

MPG15 city / 19 hwy

ExteriorOnyx Black

Interior(1St And 2Nd Rows Only.)

Vehicle description

Thank you for visiting another one of Legacy Buick GMC's online listings! Please continue for more information on this 2021 GMC Yukon XL AT4 with 140,544mi. If you're in the market for an incredible SUV -- and value on-the-road comfort and manners more than ultimate off-road prowess or tow capacity -- you'll definitely want to check out this GMC Yukon XL AT4. This vehicle comes with 4WD for better traction on unstable surfaces, like snow and dirt to give you the edge over anything you might encounter on the road. You could keep looking, but why? You've found the perfect vehicle right here. The GMC Yukon XL AT4 will provide you with everything you have always wanted in a car -- Quality, Reliability, and Character

Features & options (16)

Bluetooth®
4WD/AWD
Android Auto
Apple CarPlay
Wi-Fi Hotspot
Blind Spot Monitor
Navigation System
DriveType: Four Wheel Drive
City: 15 MPG
Hwy: 19 MPG
Combined: 16 MPG
Fuel System: Direct Injection
Fuel Tank Capacity: 28 gal
Fuel Type: Gasoline Fuel
Horse Power: - TBD -
Rear Wheel: Single

Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.

AutosXchange Intel

Vehicle price analysis

Live listings · within 250 miles of Slidell, Louisiana

Asking price$30,988Dealer asking price · 140,544 mi

Market value$41,325Market value · based on 3 comparable cars

vs. market-25.0%Not rated · stock photos only

Where this price sits

Among the lowest-priced · 100% of 3 similar listings ask more than this car.

Market value $41,325

This car$30,988

$30,988lowest$41,800highest

Middle 50% of asking pricesMarket valueThis car

Price vs. market value

−25%Market value+25%

Not rated · stock photos only$10,337 below the market value of $41,325

Price range

$30,988$41,800

Lowest price of 4 similar listings within 250 milesTick marks the market value · range of 3 similar listings

AutosXchange Insights

Compared with 3 used 2021 GMC Yukon XL AT4 listings within 250 mi.
Priced $10,337 below the market value of 3 comparable cars.
Lowest price of 4 similar listings within 250 miles.
Has about 44,000 more miles than similar listings.
About 23,424 miles per year of age (U.S. average is roughly 12,000–14,000).
Stock # 26G2378A — mention it when you call or text.

How we calculate market value: comparable cars for sale now plus their last listed prices.

Price history

Price tracked by AutosXchange since Nov 8, 2026. No price change at this dealership since Nov 8 ($30,988).0 price changes at this dealership: $30,988 → $30,988.

Market activity: Legacy GMC cut prices on 11 2026 GMC Yukon XL by an average of $1,182

AutosXchange Intel Hub: Price changes for this model in Louisiana · This model in the Intel Hub · Market movers in Louisiana

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 11); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.

Cars this price is compared to

Same 2021 Yukon XL AT4 · used · any miles · within 250 miles of Slidell, Louisiana. All 3 comparable cars for sale, nearest first.

2021 GMC Yukon XL AT4 for sale at Courtesy Pre-owned Rees St. (Breaux Bridge) in Breaux Bridge, LA

Fair price

22 photosCARFAX

2021 GMC Yukon XL AT4

$39,724est. $684/mo

$8,736 more than this car

79,790 mi
10-Speed Automatic
Gasoline
SUV

Courtesy Pre-owned Rees St. (Breaux Bridge) · Breaux Bridge, LA · 124 mi away

0 viewsStock # PBT2535

Check availability Call

20 photos

2021 GMC Yukon XL AT4

$41,800est. $720/mo

$10,812 more than this car

105,915 mi
4WD
10-Speed Automatic
Gasoline
SUV

Dunklin Auto Sales LLC · Greenville, AL · 212 mi away

0 viewsStock # AX-MR277488

Check availability Call

2021 GMC Yukon XL AT4 for sale at Kirk Brothers Buick GMC in Greenwood, MS

Fair price

25 photos

2021 GMC Yukon XL AT4

$41,325est. $712/mo

$10,337 more than this car

96,913 mi
4WD
10-Speed Automatic
Gasoline
SUV

Kirk Brothers Buick GMC · Greenwood, MS · 229 mi away

0 viewsStock # GM0360A

Check availability Call

2021 GMC Yukon XL AT479,790 miles · Courtesy Pre-owned Rees St. (Breaux Bridge) · Breaux Bridge, LA · 124 mi away$39,724$8,736 more than this car

2021 GMC Yukon XL AT4105,915 miles · Dunklin Auto Sales LLC · Greenville, AL · 212 mi away$41,800$10,812 more than this car

2021 GMC Yukon XL AT496,913 miles · Kirk Brothers Buick GMC · Greenwood, MS · 229 mi away$41,325$10,337 more than this car

AutosXchange Intel uses current dealer-advertised asking prices, not completed sales or appraisals. It compares the same trim and condition (new or used) where at least three are listed nationwide, and adjusts the expected price for mileage; it is not adjusted for options, condition or accident history. Similar listings are searched within 50, 100 and 250 miles of the dealer first, then the dealer's state, then nationwide. The left gauge spans ±25% of the expected price. How AutosXchange price analysis works