New GMC Sierra 1500 SLT for Sale nearFort Collins, CO

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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:
Black
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black, Perforated Leather-Appointed Front Outb
Transmission:
Automatic
Mileage:
4
Stock #:
TG317891
VIN:
3GTUUDEL0TG317891
Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Alpine Buick GMC

Sponsored by Alpine Buick GMC

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Highlands Ranch, CO
70 mi away

New car

MSRP $71,039

$71,729

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:
Black
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black, Perforated Leather-Appointed Front Outb
Transmission:
Automatic
Mileage:
5
Stock #:
TG389894
VIN:
3GTUUDEL3TG389894
Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,808

Sponsored Listing

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Highlands Ranch, CO
70 mi away

New car

MSRP $70,609

$62,826

$60,708

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:
Jet Black
Transmission:
Automatic
Mileage:
3
Stock #:
TG492513
VIN:
3GTUUDED8TG492513
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

Sponsored Listing

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Lone Tree, CO
70 mi away

New car

MSRP $66,895

$62,240

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:
97
Stock #:
TZ466601D
VIN:
1GTUUDE83TZ466601
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Castle Rock, CO
85 mi away

New car

MSRP $69,595

$58,919

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:
Black
Transmission:
Automatic
Mileage:
3
Stock #:
TZ451711
VIN:
1GTUUDE81TZ451711
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Loveland, CO
11 mi away

New car

MSRP $68,480

$59,068

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:
14
Stock #:
TZ273222
VIN:
1GTUUDE85TZ273222
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Home delivery from Corsicana, TX
Price includes $1,142 shipping

New car

MSRP $68,535

$57,388

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:
3
Stock #:
TG249674
VIN:
3GTUUDE88TG249674
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Home delivery from Corsicana, TX
Price includes $1,142 shipping

New car

MSRP $68,040

$57,678

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:
2
Stock #:
TG245900
VIN:
3GTUUDE84TG245900
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Home delivery from Corsicana, TX
Price includes $1,142 shipping

New car

MSRP $68,535

$57,678

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:
2,960
Stock #:
TZ164212D
VIN:
1GTUUDE85TZ164212
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Castle Rock, CO
85 mi away

New car

MSRP $67,690

$55,775

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:
Dark Walnut/Slate, Perforated Leather-Appointed Fr
Transmission:
Automatic
Mileage:
6
Stock #:
C26468
VIN:
1GTUUDE87TZ510146
Glacier White Tricoat 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Home delivery from Gillette, WY
Price includes $348 shipping

New car

MSRP $67,825

$62,771

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:
11
Stock #:
TG242647
VIN:
3GTUUDE83TG242647
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Lone Tree, CO
70 mi away

New car

MSRP $66,835

$58,499

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:
2
Stock #:
TG463657
VIN:
3GTUUDE84TG463657
Glacier White Tricoat 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Loveland, CO
11 mi away

New car

MSRP $68,535

$59,423

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:
Jet Black
Transmission:
Automatic
Mileage:
2
Stock #:
113066
VIN:
3GTUUDED7TG490039
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Home delivery from Kansas City, KS
Price includes $831 shipping

New car

MSRP $61,260

$50,185

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:
Black
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black, Perforated Leather-Appointed Front Outb
Transmission:
Automatic
Mileage:
4
Stock #:
TG317891
VIN:
3GTUUDEL0TG317891
Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Alpine Buick GMC

Sponsored by Alpine Buick GMC

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Highlands Ranch, CO
70 mi away

New car

MSRP $71,039

$71,729

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:
Black
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Jet Black, Perforated Leather-Appointed Front Outb
Transmission:
Automatic
Mileage:
5
Stock #:
TG389894
VIN:
3GTUUDEL3TG389894
Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,808

Sponsored Listing

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Highlands Ranch, CO
70 mi away

New car

MSRP $70,609

$62,826

$60,708

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:
Jet Black
Transmission:
Automatic
Mileage:
3
Stock #:
TG492513
VIN:
3GTUUDED8TG492513
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

Sponsored Listing

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Lone Tree, CO
70 mi away

New car

MSRP $66,895

$62,240

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:
97
Stock #:
TZ466601D
VIN:
1GTUUDE83TZ466601
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Castle Rock, CO
85 mi away

New car

MSRP $69,595

$58,919

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:
Black
Transmission:
Automatic
Mileage:
3
Stock #:
TZ451711
VIN:
1GTUUDE81TZ451711
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Loveland, CO
11 mi away

New car

MSRP $68,480

$59,068

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:
14
Stock #:
TZ273222
VIN:
1GTUUDE85TZ273222
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Home delivery from Corsicana, TX
Price includes $1,142 shipping

New car

MSRP $68,535

$57,388

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:
3
Stock #:
TG249674
VIN:
3GTUUDE88TG249674
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Home delivery from Corsicana, TX
Price includes $1,142 shipping

New car

MSRP $68,040

$57,678

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:
2
Stock #:
TG245900
VIN:
3GTUUDE84TG245900
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Home delivery from Corsicana, TX
Price includes $1,142 shipping

New car

MSRP $68,535

$57,678

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:
2,960
Stock #:
TZ164212D
VIN:
1GTUUDE85TZ164212
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Castle Rock, CO
85 mi away

New car

MSRP $67,690

$55,775

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:
Dark Walnut/Slate, Perforated Leather-Appointed Fr
Transmission:
Automatic
Mileage:
6
Stock #:
C26468
VIN:
1GTUUDE87TZ510146
Glacier White Tricoat 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Home delivery from Gillette, WY
Price includes $348 shipping

New car

MSRP $67,825

$62,771

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:
11
Stock #:
TG242647
VIN:
3GTUUDE83TG242647
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Lone Tree, CO
70 mi away

New car

MSRP $66,835

$58,499

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:
2
Stock #:
TG463657
VIN:
3GTUUDE84TG463657
Glacier White Tricoat 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Loveland, CO
11 mi away

New car

MSRP $68,535

$59,423

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:
Jet Black
Transmission:
Automatic
Mileage:
2
Stock #:
113066
VIN:
3GTUUDED7TG490039
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

SLT Crew Cab 4WD

Home delivery from Kansas City, KS
Price includes $831 shipping

New car

MSRP $61,260

$50,185

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/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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