Used GMC Sierra 1500 SLT for Sale nearPort Isabel, TX
370 vehicles found
Shop with transparent pricing.
Only show listings that include dealer fees- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Cayenne Red Tintcoat
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Mileage:
- 114,444
- Stock #:
- 54851A
- VIN:
- 3GTU9DEL5MG432795
New arrival
Sponsored by Clark Chevrolet
2021 GMC Sierra 1500
SLT Crew Cab 4WD
114,444 mi
McAllen, TX
59 mi away
Good Deal
$32,213
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Titanium Rush Metallic
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 41,690
- Stock #:
- T9834A
- VIN:
- 3GTUUDE8XRG191088
Sponsored Listing
2024 GMC Sierra 1500
SLT Crew Cab 4WD
41,690 mi
Pharr, TX
57 mi away
Fair Deal
$46,220
- Year:
- 2023
- 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
- Mileage:
- 66,881
- Stock #:
- CX18457
- VIN:
- 3GTUUDEL3PG318457
Sponsored Listing
2023 GMC Sierra 1500
SLT Crew Cab 4WD
66,881 mi
Harlingen, TX
28 mi away
Fair Deal
$42,150
- Year:
- 2017
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- White
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 131,602
- Stock #:
- 519683
- VIN:
- 3GTP1NEC2HG519683
2017 GMC Sierra 1500
SLT Crew Cab
131,602 mi
McAllen, TX
60 mi away
Fair Deal
$21,445
- Year:
- 2023
- 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
- Mileage:
- 66,881
- Stock #:
- CX18457
- VIN:
- 3GTUUDEL3PG318457
2023 GMC Sierra 1500
SLT Crew Cab 4WD
66,881 mi
Harlingen, TX
28 mi away
Fair Deal
$42,150
- Year:
- 2024
- 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
- Mileage:
- 28,037
- Stock #:
- RG258754
- VIN:
- 3GTUUDEDXRG258754
2024 GMC Sierra 1500
SLT Crew Cab 4WD
28,037 mi
McAllen, TX
58 mi away
Great Deal
$41,000
- Year:
- 2022
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Titanium
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 65,965
- Stock #:
- R32003A
- VIN:
- 3GTUUDEDXNG636730
New arrival
2022 GMC Sierra 1500
SLT Crew Cab 4WD
65,965 mi
Harlingen, TX
28 mi away
Fair Deal
$41,070
- Year:
- 2025
- 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
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 54,867
- Stock #:
- D20022
- VIN:
- 1GTUUDED3SZ228503
Price drop
-$3,005
2025 GMC Sierra 1500
SLT Crew Cab 4WD
54,867 mi
Home delivery from Dublin, GA
Price includes $1,458 shipping
Great Deal
$39,758
$36,753
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Onyx Black
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 134,950
- Stock #:
- C5877C
- VIN:
- 3GTU9DET0LG258634
2020 GMC Sierra 1500
SLT Crew Cab 4WD
134,950 mi
Home delivery from Forsyth, GA
Price includes $1,406 shipping
Good Deal
$26,492
- Year:
- 2015
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Sonoma Red Metallic
- Fuel type:
- Gasoline
- Interior color:
- Gray / Cocoa-Dune Leather
- Transmission:
- 6-Speed Automatic
- Mileage:
- 130,018
- Stock #:
- FG215557
- VIN:
- 3GTU2VEC4FG215557
2015 GMC Sierra 1500
SLT Crew Cab 4WD
130,018 mi
Home delivery from Bedford, OH
Price includes $2,432 shipping
Good Deal
$19,630
- Year:
- 2025
- 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
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 54,427
- Stock #:
- D200521
- VIN:
- 1GTUUDED5SZ283339
Price drop
-$3,005
2025 GMC Sierra 1500
SLT Crew Cab 4WD
54,427 mi
Home delivery from Dublin, GA
Price includes $1,458 shipping
Great Deal
$39,758
$36,753
- Year:
- 2020
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Deep Mahogany Metallic
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Mileage:
- 66,489
- Stock #:
- 78161
- VIN:
- 3GTU9DED9LG246314
2020 GMC Sierra 1500
SLT Crew Cab 4WD
66,489 mi
Home delivery from Port Angeles, WA
Price includes $3,100 shipping
Fair Deal
$37,988
- Year:
- 2025
- 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
- Fuel type:
- Gasoline
- Interior color:
- Gray
- Mileage:
- 26,847
- Stock #:
- 294734
- VIN:
- 1GTUUDED0SZ294734
New arrival
2025 GMC Sierra 1500
SLT Crew Cab 4WD
26,847 mi
Home delivery from Tampa, FL
Price includes $1,382 shipping
Great Deal
$41,270
- 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
- Mileage:
- 5,882
- Stock #:
- 308687
- VIN:
- 3GTUUDEDXTG308687
2026 GMC Sierra 1500
SLT Crew Cab 4WD
5,882 mi
Home delivery from Princeton, KY
Price includes $1,419 shipping
Fair Deal
$53,418
- 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:
- Gray
- Fuel type:
- Gasoline
- Transmission:
- 6-Speed Automatic
- Mileage:
- 100,138
- Stock #:
- 26218
- VIN:
- 3GTU2NEJ6JG349669
2018 GMC Sierra 1500
SLT Crew Cab 4WD
100,138 mi
Home delivery from Franktown, CO
Price includes $1,214 shipping
Good Deal
$27,014
- Year:
- 2019
- 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
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 36,698
- Stock #:
- P19007
- VIN:
- 3GTU9DED5KG284251
2019 GMC Sierra 1500
SLT Crew Cab 4WD
36,698 mi
Home delivery from Decatur, TX
Price includes $1,248 shipping
Fair Deal
$38,250
- Year:
- 2019
- 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:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 97,413
- Stock #:
- 164573A1
- VIN:
- 1GTU9DED9KZ134899
2019 GMC Sierra 1500
SLT Crew Cab 4WD
97,413 mi
Home delivery from Decatur, TX
Price includes $1,248 shipping
Fair Deal
$31,450
- 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:
- Jet Black/Spice Red
- Transmission:
- Automatic
- Mileage:
- 95,923
- Stock #:
- NV186743
- VIN:
- 3GTU2NEC7JG186743
2018 GMC Sierra 1500
SLT Crew Cab 4WD
95,923 mi
Home delivery from West Park, FL
Price includes $1,061 shipping
Great Deal
$25,844
- Year:
- 2017
- 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
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 152,458
- Stock #:
- 611
- VIN:
- 3GTU2NEC7HG131171
2017 GMC Sierra 1500
SLT Crew Cab 4WD
152,458 mi
Home delivery from Casselberry, FL
Price includes $1,485 shipping
Good Deal
$18,883
- Year:
- 2016
- 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:
- 137,888
- Stock #:
- 153202
- VIN:
- 3GTU2NEC5GG153202
2016 GMC Sierra 1500
SLT Crew Cab 4WD
137,888 mi
Home delivery from New Richmond, WI
Price includes $1,344 shipping
Good Deal
$20,459
- Year:
- 2017
- 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
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 116,520
- Stock #:
- HG439995T
- VIN:
- 3GTU2NEC4HG439995
New arrival
2017 GMC Sierra 1500
SLT Crew Cab 4WD
116,520 mi
Home delivery from San Antonio, TX
Price includes $381 shipping
Great Deal
$21,379
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Titanium Rush Metallic
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 41,690
- Stock #:
- T9834A
- VIN:
- 3GTUUDE8XRG191088
2024 GMC Sierra 1500
SLT Crew Cab 4WD
41,690 mi
Pharr, TX
57 mi away
Fair Deal
$46,220
- Year:
- 2016
- 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:
- 131,630
- Stock #:
- J936A
- VIN:
- 3GTU2NEC0GG339732
Price drop
-$500
2016 GMC Sierra 1500
SLT Crew Cab 4WD
131,630 mi
Home delivery from Troy, MO
Price includes $967 shipping
Fair Deal
$23,467
$22,967
- Year:
- 2022
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Titanium
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 65,965
- Stock #:
- R32003A
- VIN:
- 3GTUUDEDXNG636730
New arrival
Sponsored Listing
2022 GMC Sierra 1500
SLT Crew Cab 4WD
65,965 mi
Harlingen, TX
28 mi away
Fair Deal
$41,070
FAQs
How much does the GMC Sierra 1500 SLT cost in Port Isabel, TX?
The average GMC Sierra 1500 SLT costs about $11,043.79. The average price has decreased by -6.7% since last year. The 346 for sale near Port Isabel, TX on CarGurus, range from $8,815 to $73,077 in price.
How many GMC Sierra 1500 SLT vehicles in Port Isabel, TX have no reported accidents or damage?
248 out of 346 for sale near Port Isabel, TX 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 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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