Used 2018 GMC Sierra 1500 SLT for SaleNationwide
961 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:
- 420 hp 6.2L V8
- Exterior color:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 102,764
- Stock #:
- PPER901
- VIN:
- 3GTU2NEJ1JG380814
New arrival
2018 GMC Sierra 1500
SLT Crew Cab 4WD
102,764 mi
Pryor, OK
Fair Deal
$28,819
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- White
- Fuel type:
- Gasoline
- Interior color:
- Cocoa/Dune
- Transmission:
- Automatic
- Mileage:
- 83,675
- Stock #:
- CGBTJG463435B
- VIN:
- 3GTP1NEC1JG463435
2018 GMC Sierra 1500
SLT Crew Cab
83,675 mi
Jacksonville, FL
Fair Deal
$26,950
- 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
- Fuel type:
- Gasoline
- Interior color:
- Dark Ash Seats With Jet Black Interior Accents
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 95,691
- Stock #:
- P4659A
- VIN:
- 3GTU2NEJ2JG497656
2018 GMC Sierra 1500
SLT Crew Cab 4WD
95,691 mi
Wheatland, WY
Good Deal
$28,274
- Year:
- 2018
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Quicksilver Metallic
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 71,023
- Stock #:
- JG334515
- VIN:
- 3GTP1NEC1JG334515
2018 GMC Sierra 1500
SLT Crew Cab
71,023 mi
Newnan, GA
Great Deal
$25,674
- 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
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 68,392
- Stock #:
- T26829A
- VIN:
- 1GTV2NECXJZ260659
2018 GMC Sierra 1500
SLT Double Cab 4WD
68,392 mi
Zanesville, OH
Fair Deal
$28,197
- 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:
- Blue
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 116,121
- Stock #:
- 565370
- VIN:
- 3GTU2NEJ7JG565370
2018 GMC Sierra 1500
SLT Crew Cab 4WD
116,121 mi
Groveland, FL
Good Deal
$23,576
- 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:
- 112,564
- Stock #:
- T86942
- VIN:
- 3GTP1NEC8JG586942
Price drop
-$502
2018 GMC Sierra 1500
SLT Crew Cab
112,564 mi
Mayfield, KY
Good Deal
$22,819
$22,317
- 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:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 56,687
- Stock #:
- 39863
- VIN:
- 3GTU2NEJ9JG601012
Price drop
-$2,050
2018 GMC Sierra 1500
SLT Crew Cab 4WD
56,687 mi
North Bend, WA
Fair Deal
$35,700
$33,650
- 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
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Dark Ash Seats With Jet Black Interior Accents
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 111,653
- Stock #:
- GT551A
- VIN:
- 3GTU2NECXJG551500
New arrival
2018 GMC Sierra 1500
SLT Crew Cab 4WD
111,653 mi
Greenfield, IN
Fair Deal
$26,546
- 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:
- Jet Black
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 103,127
- Stock #:
- M7671NF
- VIN:
- 3GTU2NEC8JG170647
2018 GMC Sierra 1500
SLT Crew Cab 4WD
103,127 mi
Cuyahoga Falls, OH
Fair Deal
$25,893
- 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
- Transmission:
- Automatic
- Mileage:
- 89,451
- Stock #:
- 26180A
- VIN:
- 3GTU2NEC9JG244612
2018 GMC Sierra 1500
SLT Crew Cab 4WD
89,451 mi
Taylorville, IL
Good Deal
$28,287
- 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:
- JET BLACK
- Transmission:
- Automatic
- Mileage:
- 114,664
- Stock #:
- T264558A
- VIN:
- 3GTU2NEC8JG487702
2018 GMC Sierra 1500
SLT Crew Cab 4WD
114,664 mi
Kaukauna, WI
Good Deal
$24,137
- 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
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 86,277
- Stock #:
- LT2444A
- VIN:
- 3GTU2NEC9JG113275
New arrival
2018 GMC Sierra 1500
SLT Crew Cab 4WD
86,277 mi
Bellefonte, PA
Good Deal
$27,487
- 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
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 117,507
- Stock #:
- NS2243
- VIN:
- 3GTU2NEJ4JG627971
Price drop
-$1,000
2018 GMC Sierra 1500
SLT Crew Cab 4WD
117,507 mi
Slidell, LA
Great Deal
$24,443
$23,443
- 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
- Fuel type:
- Gasoline
- Interior color:
- Cocoa/Dune
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 93,045
- Stock #:
- G26069A
- VIN:
- 3GTU2NEC4JG399553
2018 GMC Sierra 1500
SLT Crew Cab 4WD
93,045 mi
Cincinnati, OH
Fair Deal
$28,398
- 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:
- Blue
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 106,597
- Stock #:
- 2023
- VIN:
- 3GTU2NEC8JG182877
Price drop
-$2,000
2018 GMC Sierra 1500
SLT Crew Cab 4WD
106,597 mi
Livingston, TN
Good Deal
$28,393
$26,393
- 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:
- 8-Speed Automatic Overdrive
- Mileage:
- 98,188
- Stock #:
- 101111
- VIN:
- 3GTU2NEC0JG468917
2018 GMC Sierra 1500
SLT Crew Cab 4WD
98,188 mi
Cabot, AR
Fair Deal
$28,500
- 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:
- Gray
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 29,960
- Stock #:
- CI835
- VIN:
- 3GTU2NEC9JG547132
Price drop
-$2,570
2018 GMC Sierra 1500
SLT Crew Cab 4WD
29,960 mi
Clovis, CA
Fair Deal
$39,808
$37,323
- 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:
- Blue
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (Beige)
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 131,190
- Stock #:
- JG266666
- VIN:
- 3GTU2NECXJG266666
2018 GMC Sierra 1500
SLT Crew Cab 4WD
131,190 mi
El Paso, TX
Fair Deal
$27,330
- 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:
- Cocoa/Dune
- Transmission:
- 8-Speed Automatic
- Mileage:
- 95,300
- Stock #:
- W5173C
- VIN:
- 3GTU2NEJ0JG579594
2018 GMC Sierra 1500
SLT Crew Cab 4WD
95,300 mi
Lagrange, GA
Fair Deal
$29,489
- 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
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 122,692
- Stock #:
- 14755A
- VIN:
- 3GTU2NEC7JG370483
2018 GMC Sierra 1500
SLT Crew Cab 4WD
122,692 mi
Yankton, SD
Great Deal
$22,777
- 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
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Cocoa/Dune
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 110,733
- Stock #:
- TM2536
- VIN:
- 3GTU2NEC5JG359305
2018 GMC Sierra 1500
SLT Crew Cab 4WD
110,733 mi
Tipton, IN
Good Deal
$24,883
- 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
-$679
2018 GMC Sierra 1500
SLT Crew Cab 4WD
115,976 mi
Marathon, WI
Good Deal
$26,219
$25,540
- 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:
- Cocoa/Dune
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 111,692
- Stock #:
- 18655U
- VIN:
- 3GTU2NEC9JG328011
Price drop
-$698
2018 GMC Sierra 1500
SLT Crew Cab 4WD
111,692 mi
Liberty Lake, WA
Great Deal
$24,697
$24,199
FAQs
How much does the GMC Sierra 1500 SLT cost?
The average GMC Sierra 1500 SLT costs about $26,097.20. The average price has decreased by -1.9% since last year. The 8221 for sale on CarGurus range from $2,636 to $136,390 in price.
How many GMC Sierra 1500 SLT vehicles have no reported accidents or damage?
6556 out of 8221 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/MPGe.
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.
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