New GMC Sierra 1500 SLT for Sale nearPort Isabel, TX
187 vehicles found
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Sterling Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 5
- Stock #:
- G262979
- VIN:
- 3GTUUDED8TG524358
Sponsored Listing
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Brownsville, TX
14 mi away
New car
MSRP $67,575
$63,124
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Sterling Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Mileage:
- 5
- Stock #:
- G262962
- VIN:
- 3GTUUDED6TG502228
New arrival
Sponsored Listing
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Brownsville, TX
14 mi away
New car
MSRP $68,805
$64,342
- Year:
- 2026
- 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:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 5
- Stock #:
- G262888
- VIN:
- 3GTUUDEDXTG499995
Sponsored Listing
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Brownsville, TX
14 mi away
New car
MSRP $68,310
$63,169
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Glacier White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Stock #:
- G25030
- VIN:
- 3GTUUDED9TG325030
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Edinburg, TX
56 mi away
New car
MSRP $66,545
$58,695
- Year:
- 2026
- 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:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Stock #:
- G46920
- VIN:
- 3GTUUDED0TG446920
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Edinburg, TX
56 mi away
New car
MSRP $65,700
$57,850
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Sterling Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Stock #:
- G71410
- VIN:
- 3GTUUDED3TG471410
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Edinburg, TX
56 mi away
New car
MSRP $61,490
$57,640
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Glacier White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Stock #:
- G46855
- VIN:
- 3GTUUDED4TG446855
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Edinburg, TX
56 mi away
New car
MSRP $65,360
$57,510
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Glacier White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Stock #:
- G47073
- VIN:
- 3GTUUDED1TG447073
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Edinburg, TX
56 mi away
New car
MSRP $66,795
$58,945
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Glacier White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Stock #:
- G47075
- VIN:
- 3GTUUDED5TG447075
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Edinburg, TX
56 mi away
New car
MSRP $66,795
$58,945
- Year:
- 2026
- 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:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Stock #:
- G46848
- VIN:
- 3GTUUDED7TG446848
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Edinburg, TX
56 mi away
New car
MSRP $65,700
$57,850
- Year:
- 2026
- 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:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Stock #:
- G46935
- VIN:
- 3GTUUDED2TG446935
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Edinburg, TX
56 mi away
New car
MSRP $65,700
$57,850
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Glacier White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Stock #:
- G71132
- VIN:
- 3GTUUDED1TG471132
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Edinburg, TX
56 mi away
New car
MSRP $62,090
$58,240
- Year:
- 2026
- 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
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Stock #:
- G10913
- VIN:
- 3GTUUDEL4TG310913
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Edinburg, TX
56 mi away
New car
MSRP $68,370
$61,520
- Year:
- 2026
- 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:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 3
- Stock #:
- G262884
- VIN:
- 3GTUUDED6TG500186
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Brownsville, TX
14 mi away
New car
MSRP $68,310
$63,169
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Sterling Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 5
- Stock #:
- G262909
- VIN:
- 3GTUUDED8TG495606
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Brownsville, TX
14 mi away
New car
MSRP $68,505
$63,360
- Year:
- 2026
- 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:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Stock #:
- G71288
- VIN:
- 3GTUUDEDXTG471288
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Edinburg, TX
56 mi away
New car
MSRP $61,490
$57,640
- Year:
- 2026
- 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
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Stock #:
- G30745
- VIN:
- 3GTUUDELXTG330745
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Edinburg, TX
56 mi away
New car
MSRP $71,225
$64,375
- Year:
- 2026
- 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:
- Black
- Transmission:
- Automatic
- Stock #:
- G10400
- VIN:
- 3GTUUDEL8TG310400
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Edinburg, TX
56 mi away
New car
MSRP $67,875
$61,025
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Glacier White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Stock #:
- G10460
- VIN:
- 3GTUUDEL4TG310460
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Edinburg, TX
56 mi away
New car
MSRP $68,970
$62,120
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Glacier White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Stock #:
- G11513
- VIN:
- 3GTUUDEL4TG311513
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Edinburg, TX
56 mi away
New car
MSRP $68,970
$62,120
- Year:
- 2026
- 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:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 5
- Stock #:
- G262982
- VIN:
- 3GTUUDED8TG522903
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Brownsville, TX
14 mi away
New car
MSRP $67,210
$62,763
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Glacier White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Stock #:
- G29570
- VIN:
- 3GTUUDEL7TG329570
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Edinburg, TX
56 mi away
New car
MSRP $71,825
$64,975
- Year:
- 2026
- 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:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 5
- Stock #:
- G262920
- VIN:
- 3GTUUDED7TG516669
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Brownsville, TX
14 mi away
New car
MSRP $67,560
$62,434
- Year:
- 2026
- 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
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Stock #:
- G330756
- VIN:
- 3GTUUDEL4TG330756
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Edinburg, TX
56 mi away
New car
MSRP $71,225
$64,375
FAQs
What is the fuel economy of the GMC Sierra 1500 SLT?
Depending on the engine and options, the GMC Sierra 1500 SLT gets between 14 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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