Used 2021 GMC Yukon XL SLT 4WD for SaleNationwide
140 vehicles found
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Gray (Satin Steel Metallic)
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 97,813
- Stock #:
- 292461A
- VIN:
- 1GKS2GKD0MR292461
2021 GMC Yukon XL
SLT 4WD
97,813 mi
Alexandria, MN
Good Deal
$36,803
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 99,650
- Stock #:
- MR322344T
- VIN:
- 1GKS2GKD5MR322344
2021 GMC Yukon XL
SLT 4WD
99,650 mi
Ogden, UT
Good Deal
$35,820
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Summit White
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Mileage:
- 117,598
- Stock #:
- J1038A
- VIN:
- 1GKS2GKD4MR256823
New arrival
2021 GMC Yukon XL
SLT 4WD
117,598 mi
Castle Rock, CO
Good Deal
$33,798
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- White
- Fuel type:
- Gasoline
- Mileage:
- 83,716
- Stock #:
- T1139
- VIN:
- 1GKS2GKD1MR412641
2021 GMC Yukon XL
SLT 4WD
83,716 mi
Great Falls, MT
Fair Deal
$43,893
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Gray (Dark Sky Metallic)
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 124,820
- Stock #:
- T17682B
- VIN:
- 1GKS2GKD2MR399284
Price drop
-$966
2021 GMC Yukon XL
SLT 4WD
124,820 mi
Charlotte, NC
Good Deal
$34,762
$33,796
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Black
- Mileage:
- 58,438
- Stock #:
- 360819B
- VIN:
- 1GKS2GKD1MR155304
2021 GMC Yukon XL
SLT 4WD
58,438 mi
Snyder, TX
Fair Deal
$47,134
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Mileage:
- 65,801
- Stock #:
- 26A987A
- VIN:
- 1GKS2GKD3MR426573
2021 GMC Yukon XL
SLT 4WD
65,801 mi
Ann Arbor, MI
Good Deal
$42,309
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Summit White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 97,138
- Stock #:
- 51846
- VIN:
- 1GKS2GKD4MR270351
Price drop
-$2,000
2021 GMC Yukon XL
SLT 4WD
97,138 mi
Milwaukie, OR
Good Deal
$38,888
$36,888
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Red
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 155,053
- Stock #:
- 9779
- VIN:
- 1GKS2GKD6MR198522
2021 GMC Yukon XL
SLT 4WD
155,053 mi
Tampa, FL
Good Deal
$27,897
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- DARK WALNUT/SLATE
- Transmission:
- Automatic
- Mileage:
- 109,634
- Stock #:
- P0138
- VIN:
- 1GKS2GKD2MR147941
2021 GMC Yukon XL
SLT 4WD
109,634 mi
Sarasota, FL
Good Deal
$35,614
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Summit White
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Mileage:
- 115,097
- Stock #:
- 4467P
- VIN:
- 1GKS2GKD4MR256093
2021 GMC Yukon XL
SLT 4WD
115,097 mi
Willmar, MN
Fair Deal
$35,350
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Mileage:
- 108,424
- Stock #:
- MR130806X
- VIN:
- 1GKS2GKDXMR130806
2021 GMC Yukon XL
SLT 4WD
108,424 mi
Conyers, GA
Good Deal
$36,971
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- White Frost Tricoat
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Mileage:
- 97,955
- Stock #:
- 26189B
- VIN:
- 1GKS2GKD6MR131192
New arrival
2021 GMC Yukon XL
SLT 4WD
97,955 mi
Wabash, IN
Fair Deal
$39,841
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Gray (Dark Sky Metallic)
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Mileage:
- 144,234
- Stock #:
- N6115A
- VIN:
- 1GKS2GKD6MR451516
2021 GMC Yukon XL
SLT 4WD
144,234 mi
East Liverpool, OH
Fair Deal
$31,988
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- White Frost Tricoat
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Mileage:
- 51,934
- Stock #:
- G4482B
- VIN:
- 1GKS2GKD7MR470320
2021 GMC Yukon XL
SLT 4WD
51,934 mi
Utica, NY
Fair Deal
$46,175
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Mileage:
- 76,427
- Stock #:
- MR157447
- VIN:
- 1GKS2GKD0MR157447
Price drop
-$2,300
2021 GMC Yukon XL
SLT 4WD
76,427 mi
Richfield, MN
Good Deal
$42,648
$40,348
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Mileage:
- 170,698
- Stock #:
- R249125T
- VIN:
- 1GKS2GKD0MR249125
Price drop
-$1,000
2021 GMC Yukon XL
SLT 4WD
170,698 mi
Corydon, IN
Good Deal
$28,500
$27,500
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Sky
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Mileage:
- 98,013
- Stock #:
- NV355475
- VIN:
- 1GKS2GKD9MR355475
2021 GMC Yukon XL
SLT 4WD
98,013 mi
West Park, FL
Great Deal
$33,070
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Midnight Blue Metallic
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Mileage:
- 99,408
- Stock #:
- S2478
- VIN:
- 1GKS2GKD2MR155912
2021 GMC Yukon XL
SLT 4WD
99,408 mi
Sandy, UT
Good Deal
$36,859
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 82,846
- Stock #:
- M1633
- VIN:
- 1GKS2GKD2MR150371
2021 GMC Yukon XL
SLT 4WD
82,846 mi
Athens, GA
Fair Deal
$42,752
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- White Frost Tricoat
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 86,827
- Stock #:
- 390639S
- VIN:
- 1GKS2GKD1MR390639
New arrival
2021 GMC Yukon XL
SLT 4WD
86,827 mi
Jacksonville, FL
Good Deal
$39,999
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Mileage:
- 130,246
- Stock #:
- G26704A
- VIN:
- 1GKS2GKD9MR127458
2021 GMC Yukon XL
SLT 4WD
130,246 mi
Fishers, IN
Good Deal
$32,699
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Black
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Tan)
- Transmission:
- Automatic
- Mileage:
- 149,707
- Stock #:
- F-3296
- VIN:
- 1GKS2GKD7MR252958
New arrival
2021 GMC Yukon XL
SLT 4WD
149,707 mi
Phoenix, AZ
Great Deal
$27,399
- Year:
- 2021
- Make:
- GMC
- Model:
- Yukon XL
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Cayenne Red
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Mileage:
- 93,375
- Stock #:
- GT315450
- VIN:
- 1GKS2GKD2MR315450
2021 GMC Yukon XL
SLT 4WD
93,375 mi
Auburn, ME
Fair Deal
$40,648
5.0 Overall rating
Filter by rating
Michael S
Reviewed a 2021 GMC SLT 4WD on Apr 26, 2026
Getting the diesel was the best decision! Far superior to the gasoline engine options.
Is this review helpful?
FAQs
How much does the GMC Yukon XL SLT 4WD cost?
The average GMC Yukon XL SLT 4WD costs about $41,647.27. The average price has decreased by -4.3% since last year. The 1116 for sale on CarGurus range from $3,995 to $70,159 in price.
How many GMC Yukon XL SLT 4WD vehicles have no reported accidents or damage?
815 out of 1116 for sale have no reported accidents or damage.
What is the fuel economy of the GMC Yukon XL SLT 4WD?
Depending on the engine and options, the GMC Yukon XL SLT 4WD gets between 16 and 22 MPG (or EV battery range).
What fuel types are available?
Diesel, Flex Fuel Vehicle, Gasoline engines are available.
Relevant articles
CarGurus Editorial Team
The Best Cars for Tall People in 2026
Searching for vehicles best suited for tall people? Keep reading to find out which cars, trucks, and SUVs best accommodate those with a higher stature, as recommended by the experts at CarGurus.
Jeremy Korzeniewski
GMC Yukon XL Buying Guide: Cost, Reliability, and the Best Years to Buy
Discover the ultimate buying guide for purchasing a used GMC Yukon XL, covering each generation since 2000. Whether you're a first-time buyer or a General Motors enthusiast, this comprehensive overview will help you research your next pre-owned GMC Yukon XL.
Chris Teague
2026 GMC Yukon XL Pricing, Specs, and Release Date
Existing as a stretched version of the Yukon, the 2026 GMC Yukon XL shares its architecture with the Chevrolet Suburban. It offers seating for up to eight passengers and can tow up to 8,400 pounds.
All Used CarsManual Transmission CarsLuxury CarsCars with Red InteriorCheap Manual CarsHybrid CarsSports CarsElectric SUVsCheap TrucksSmall CarsThird Row SUVsThree Quarter Ton TrucksLifted TrucksManual Transmission TrucksDiesel TrucksHybrid SUVsDually TrucksOne Ton TrucksCheap SUVsLifted Ford Trucks4x4 TrucksWork TrucksAWD SUVsFord TrucksChevrolet TrucksToyota TrucksTrucks Under $10,000Cars Under $15,000Sports Cars Under $20,000Trucks Under $20,000Used Sedans for Sale with Low MileageUsed SUVs / Crossovers for Sale with Low MileageUsed Hatchbacks for Sale with Low MileageUsed Convertibles for Sale with Low MileageUsed Vans for Sale with Low MileageUsed Minivans for Sale with Low MileageUsed Pickup Trucks for Sale with Low MileageUsed Coupes for Sale with Low MileageUsed Wagons for Sale with Low Mileage
