New GMC Sierra 1500 SLT for Sale nearMack, CO
137 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:
- 3L I6 Diesel
- Exterior color:
- Summit White
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 6
- Stock #:
- 23945
- VIN:
- 3GTUUDE83TG268388
Sponsored Listing
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Meeker, CO
91 mi away
New car
MSRP $68,965
$65,451
- 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:
- 2
- Stock #:
- G2105
- VIN:
- 3GTUUDED4TG430526
Price drop
-$3,304
Sponsored Listing
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Grand Junction, CO
22 mi away
New car
MSRP $66,090
$65,139
$61,835
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Volcanic Red Tintcoat
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 7
- Stock #:
- G2029
- VIN:
- 3GTUUDE89TG269416
Price drop
-$3,376
Sponsored Listing
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Grand Junction, CO
22 mi away
New car
MSRP $67,530
$66,579
$63,203
- 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:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 1
- Stock #:
- 112748
- VIN:
- 1GTUUDED5TZ365153
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Home delivery from Kansas City, KS
Price includes $1,137 shipping
New car
MSRP $61,490
$50,471
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Onyx Black
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 2
- Stock #:
- 112781
- VIN:
- 3GTUUDE8XTG367483
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Home delivery from Kansas City, KS
Price includes $1,137 shipping
New car
MSRP $62,285
$53,766
- 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 Tricoat
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 4
- Stock #:
- TG414291
- VIN:
- 3GTUUDED0TG414291
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Home delivery from Thornton, CO
Price includes $321 shipping
New car
MSRP $68,775
$59,493
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Sterling Metallic
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 1
- Stock #:
- 112810
- VIN:
- 3GTUUDE84TG367477
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Home delivery from Kansas City, KS
Price includes $1,137 shipping
New car
MSRP $62,285
$53,766
- 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
- Mileage:
- 2,965
- Stock #:
- L194395
- VIN:
- 3GTUUDEL7TG194395
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Home delivery from Longmont, CO
Free home delivery
New car
MSRP $69,460
$58,348
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Summit White
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 0
- Stock #:
- 112901
- VIN:
- 1GTUUDE86TZ402407
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Home delivery from Kansas City, KS
Price includes $1,137 shipping
New car
MSRP $69,035
$60,516
- 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:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 3
- Stock #:
- 113001
- VIN:
- 3GTUUDED4TG488023
Price drop
-$3,000
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Home delivery from Kansas City, KS
Price includes $1,137 shipping
New car
MSRP $61,755
$53,736
$50,736
- 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 #:
- TG382434
- VIN:
- 3GTUUDEDXTG382434
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Home delivery from Carrollton, TX
Price includes $1,198 shipping
New car
MSRP $67,740
$51,898
- 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
- Mileage:
- 4
- Stock #:
- TZ416345
- VIN:
- 1GTUUDED7TZ416345
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Home delivery from Carrollton, TX
Price includes $1,198 shipping
New car
MSRP $67,805
$54,808
- 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:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Mileage:
- 5
- Stock #:
- TZ416229
- VIN:
- 1GTUUDED5TZ416229
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Home delivery from Carrollton, TX
Price includes $1,198 shipping
New car
MSRP $67,805
$54,808
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Summit White
- Fuel type:
- Diesel
- Interior color:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Mileage:
- 3
- Stock #:
- TZ419402
- VIN:
- 1GTUUDE84TZ419402
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Home delivery from Carrollton, TX
Price includes $1,198 shipping
New car
MSRP $68,105
$57,062
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Glacier White Tricoat
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 5
- Stock #:
- TZ418178
- VIN:
- 1GTUUDE89TZ418178
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Home delivery from Carrollton, TX
Price includes $1,198 shipping
New car
MSRP $69,200
$57,994
- 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:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Mileage:
- 4
- Stock #:
- TZ446810
- VIN:
- 1GTUUDED4TZ446810
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Home delivery from Carrollton, TX
Price includes $1,198 shipping
New car
MSRP $68,105
$55,062
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Summit White
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 4
- Stock #:
- TG317247
- VIN:
- 3GTUUDE81TG317247
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Home delivery from Carrollton, TX
Price includes $1,198 shipping
New car
MSRP $68,040
$55,646
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Sterling Metallic
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 11
- Stock #:
- TZ273222
- VIN:
- 1GTUUDE85TZ273222
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Home delivery from Corsicana, TX
Price includes $1,298 shipping
New car
MSRP $68,535
$59,058
- 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 Tricoat
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 2
- Stock #:
- TG429167
- VIN:
- 3GTUUDED8TG429167
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Home delivery from Stanton, TX
Price includes $813 shipping
New car
MSRP $65,095
$56,804
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Glacier White Tricoat
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 5
- Stock #:
- TG466638
- VIN:
- 3GTUUDE84TG466638
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Home delivery from Carrollton, TX
Price includes $1,198 shipping
New car
MSRP $69,200
$57,994
- Year:
- 2026
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Summit White
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 4
- Stock #:
- TG317241
- VIN:
- 3GTUUDE80TG317241
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Home delivery from Carrollton, TX
Price includes $1,198 shipping
New car
MSRP $68,040
$55,646
- 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:
- 4
- Stock #:
- TZ403574
- VIN:
- 1GTUUDED1TZ403574
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Home delivery from Carrollton, TX
Price includes $1,198 shipping
New car
MSRP $67,245
$54,332
- 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:
- 3
- Stock #:
- 112993
- VIN:
- 1GTUUDED5TZ474440
Price drop
-$3,000
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Home delivery from Kansas City, KS
Price includes $1,137 shipping
New car
MSRP $69,835
$61,816
$58,816
- 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
- Stock #:
- TZ446706
- VIN:
- 1GTUUDED9TZ446706
2026 GMC Sierra 1500
SLT Crew Cab 4WD
Home delivery from Carrollton, TX
Price includes $1,198 shipping
New car
MSRP $67,610
$54,642
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 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.
