Used 2018 GMC Sierra 1500 SLT for SaleNationwide
877 vehicles found
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Cardinal Red
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 54,599
- Stock #:
- LX4485A
- VIN:
- 3GTU2NEC0JG581430
2018 GMC Sierra 1500
SLT Crew Cab 4WD
54,599 mi
Lexington, SC
Good Deal
$33,989
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Stone Blue Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black/Spice Red
- Transmission:
- 8-Speed Automatic
- Mileage:
- 115,976
- Stock #:
- 3000B
- VIN:
- 3GTU2NEJ7JG357571
Price drop
-$690
2018 GMC Sierra 1500
SLT Crew Cab 4WD
115,976 mi
Marathon, WI
Good Deal
$26,909
$26,219
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Jet Black/Spice Red
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 137,199
- Stock #:
- 1787A
- VIN:
- 3GTU2NEC8JG340537
New arrival
2018 GMC Sierra 1500
SLT Crew Cab 4WD
137,199 mi
Cincinnati, OH
Fair Deal
$23,448
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 132,854
- Stock #:
- H262367A
- VIN:
- 3GTU2NEJ5JG631253
New arrival
2018 GMC Sierra 1500
SLT Crew Cab 4WD
132,854 mi
Avondale, AZ
Good Deal
$24,983
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Quicksilver Metallic
- Fuel type:
- Gasoline
- Interior color:
- Dark Ash/Jet Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 81,482
- Stock #:
- WU832
- VIN:
- 3GTU2NEC3JG615103
2018 GMC Sierra 1500
SLT Crew Cab 4WD
81,482 mi
Wytheville, VA
Good Deal
$30,996
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- White
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 131,374
- Stock #:
- 6GM1077T
- VIN:
- 3GTU2NEC8JG507155
Price drop
-$1,036
2018 GMC Sierra 1500
SLT Crew Cab 4WD
131,374 mi
Westbrook, ME
Fair Deal
$25,579
$24,543
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Red Quartz Tintcoat
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 99,491
- Stock #:
- M9707A
- VIN:
- 3GTU2NEC4JG342009
New arrival
2018 GMC Sierra 1500
SLT Crew Cab 4WD
99,491 mi
Chippewa Falls, WI
Great Deal
$25,168
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Dark Slate Metallic
- Fuel type:
- Gasoline
- Interior color:
- Dark Ash/Jet Black
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 68,745
- Stock #:
- 541416T
- VIN:
- 3GTU2NEC4JG541416
2018 GMC Sierra 1500
SLT Crew Cab 4WD
68,745 mi
Highlands Ranch, CO
Fair Deal
$33,736
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Exterior color:
- Onyx Black
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 152,630
- Stock #:
- B3111
- VIN:
- 3GTU2NEJ0JG143439
2018 GMC Sierra 1500
SLT Crew Cab 4WD
152,630 mi
Waupun, WI
Fair Deal
$22,647
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- White Frost Tricoat
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 118,023
- Stock #:
- 261510A
- VIN:
- 3GTU2NEC4JG542226
2018 GMC Sierra 1500
SLT Crew Cab 4WD
118,023 mi
Inver Grove Heights, MN
Good Deal
$24,574
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Black
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 90,351
- Stock #:
- 430720
- VIN:
- 3GTU2NER5JG430720
2018 GMC Sierra 1500
SLT Crew Cab 4WD
90,351 mi
Yakima, WA
Great Deal
$25,199
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Stone Blue Metallic
- Fuel type:
- Gasoline
- Interior color:
- Dark Ash Seats With Jet Black Interior Accents
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 119,316
- Stock #:
- 626126A
- VIN:
- 3GTU2NEC6JG272884
2018 GMC Sierra 1500
SLT Crew Cab 4WD
119,316 mi
Colorado Springs, CO
Good Deal
$24,979
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Summit White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 218,355
- Stock #:
- 26C166A
- VIN:
- 3GTU2NEJXJG448219
2018 GMC Sierra 1500
SLT Crew Cab 4WD
218,355 mi
Dillon, MT
Great Deal
$14,372
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Jet Black/Spice Red All-Terrain
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 64,345
- Stock #:
- P1B0521A
- VIN:
- 3GTU2NEC6JG235009
Price drop
-$1,574
2018 GMC Sierra 1500
SLT Crew Cab 4WD
64,345 mi
Baltimore, MD
Good Deal
$32,400
$31,626
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Gray
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 130,741
- Stock #:
- 103236
- VIN:
- 3GTU2NEC4JG103236
New arrival
2018 GMC Sierra 1500
SLT Crew Cab 4WD
130,741 mi
Clarksville, TN
Great Deal
$22,000
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Dark Ash Seats With Jet Black Interior Accents
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 118,692
- Stock #:
- C26373B
- VIN:
- 3GTP1NEJ7JG318284
2018 GMC Sierra 1500
SLT Crew Cab
118,692 mi
Leesville, LA
Good Deal
$24,232
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Silver Or Aluminum
- Fuel type:
- Gasoline
- Mileage:
- 97,070
- Stock #:
- 14465
- VIN:
- 3GTU2NEC1JG116185
2018 GMC Sierra 1500
SLT Crew Cab 4WD
97,070 mi
Thomson, GA
Great Deal
$26,950
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Quartz
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Cocoa/Dune
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 124,891
- Stock #:
- 417723B
- VIN:
- 3GTU2NEC6JG489190
2018 GMC Sierra 1500
SLT Crew Cab 4WD
124,891 mi
Anson, TX
Great Deal
$23,999
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Brown
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown
- Transmission:
- Automatic
- Mileage:
- 72,855
- Stock #:
- 4G2698T
- VIN:
- 1GTV2NEC0JZ371558
2018 GMC Sierra 1500
SLT Double Cab 4WD
72,855 mi
Bloomington, MN
Fair Deal
$27,848
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Summit White
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Cocoa/Dune
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 162,203
- Stock #:
- FF682A
- VIN:
- 3GTP1NEC9JG633119
2018 GMC Sierra 1500
SLT Crew Cab
162,203 mi
McGregor, TX
Good Deal
$18,980
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Summit White
- Fuel type:
- Gasoline
- Interior color:
- Cocoa/Dune
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 70,035
- Stock #:
- 21195A
- VIN:
- 3GTU2NEC7JG585989
2018 GMC Sierra 1500
SLT Crew Cab 4WD
70,035 mi
Florence, AL
Fair Deal
$33,169
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Summit White
- Fuel type:
- Gasoline
- Interior color:
- Cocoa/Dune
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 107,106
- Stock #:
- T0379
- VIN:
- 3GTU2NECXJG449887
Price drop
-$1,025
2018 GMC Sierra 1500
SLT Crew Cab 4WD
107,106 mi
Weston, WI
Good Deal
$27,299
$26,274
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Cocoa/Dune
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 59,126
- Stock #:
- 604668A
- VIN:
- 3GTU2NEC1JG450443
2018 GMC Sierra 1500
SLT Crew Cab 4WD
59,126 mi
Paris, TX
Fair Deal
$35,070
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Dark Slate Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 77,377
- Stock #:
- Q3272
- VIN:
- 3GTU2NEJ2JG280690
2018 GMC Sierra 1500
SLT Crew Cab 4WD
77,377 mi
Lafayette, LA
Good Deal
$30,474
FAQs
How much does the GMC Sierra 1500 SLT cost?
The average GMC Sierra 1500 SLT costs about $26,227.32. The average price has decreased by -1% since last year. The 7510 for sale on CarGurus range from $4,532 to $73,314 in price.
How many GMC Sierra 1500 SLT vehicles have no reported accidents or damage?
6043 out of 7510 for sale have no reported accidents or damage.
What is the fuel economy of the GMC Sierra 1500 SLT?
Depending on the engine and options, the GMC Sierra 1500 SLT gets between 11 and 24 MPG (or EV battery range).
What fuel types are available?
Diesel, Flex Fuel Vehicle, Gasoline engines are available.
*CarGurus meticulously monitors the prices of millions of pre-owned vehicle listings, offering users precise and up-to-date market insights. Historical pricing data excludes any additional dealer fees as of May 3, 2026.
Relevant articles
CarGurus Editorial Team
Best Truck Lease Deals in August 2026
Leasing a truck can be a great way to get into one of the latest models, with the best technology, at a more affordable monthly price. Here are the best deals we've found this month.
CarGurus Editorial Team
Best Car Deals in August 2026
In the market for a new or used car this year? Whether you’re looking to buy or lease, we’ve collated a list of the best car deals available this month.
CarGurus Editorial Team
The Best Gas Mileage Trucks of 2026
No one wants to cover unnecessary fuel expenses, particularly when operating a business. Here are the top 9 pickup trucks in the US market with the best fuel efficiency.
GMC Sierra 1500 SLT in AlabamaGMC Sierra 1500 SLT in AlaskaGMC Sierra 1500 SLT in ArizonaGMC Sierra 1500 SLT in ArkansasGMC Sierra 1500 SLT in CaliforniaGMC Sierra 1500 SLT in ColoradoGMC Sierra 1500 SLT in ConnecticutGMC Sierra 1500 SLT in DelawareGMC Sierra 1500 SLT in District of ColumbiaGMC Sierra 1500 SLT in FloridaGMC Sierra 1500 SLT in GeorgiaGMC Sierra 1500 SLT in HawaiiGMC Sierra 1500 SLT in IdahoGMC Sierra 1500 SLT in IllinoisGMC Sierra 1500 SLT in IndianaGMC Sierra 1500 SLT in IowaGMC Sierra 1500 SLT in KansasGMC Sierra 1500 SLT in KentuckyGMC Sierra 1500 SLT in LouisianaGMC Sierra 1500 SLT in MaineGMC Sierra 1500 SLT in MarylandGMC Sierra 1500 SLT in MassachusettsGMC Sierra 1500 SLT in MichiganGMC Sierra 1500 SLT in MinnesotaGMC Sierra 1500 SLT in MississippiGMC Sierra 1500 SLT in MissouriGMC Sierra 1500 SLT in MontanaGMC Sierra 1500 SLT in NebraskaGMC Sierra 1500 SLT in NevadaGMC Sierra 1500 SLT in New HampshireGMC Sierra 1500 SLT in New JerseyGMC Sierra 1500 SLT in New MexicoGMC Sierra 1500 SLT in New YorkGMC Sierra 1500 SLT in North CarolinaGMC Sierra 1500 SLT in North DakotaGMC Sierra 1500 SLT in OhioGMC Sierra 1500 SLT in OklahomaGMC Sierra 1500 SLT in OregonGMC Sierra 1500 SLT in PennsylvaniaGMC Sierra 1500 SLT in Puerto RicoGMC Sierra 1500 SLT in Rhode IslandGMC Sierra 1500 SLT in South CarolinaGMC Sierra 1500 SLT in South DakotaGMC Sierra 1500 SLT in TennesseeGMC Sierra 1500 SLT in TexasGMC Sierra 1500 SLT in UtahGMC Sierra 1500 SLT in VermontGMC Sierra 1500 SLT in VirginiaGMC Sierra 1500 SLT in WashingtonGMC Sierra 1500 SLT in West VirginiaGMC Sierra 1500 SLT in WisconsinGMC Sierra 1500 SLT in Wyoming
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
