Used GMC Sedans for Sale inCastle Rock, CO

Filters (2)

Location:

Only show listings in CO?

Include delivery listings?

0 listings match your search criteria. The following filters have been removed:

Body style

3,262 vehicles found

Shop with transparent pricing.

Only show listings that include dealer fees
Year:
2018
Make:
GMC
Model:
Yukon
Body type:
SUV / Crossover
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
420 hp 6.2L V8
Exterior color:
Gray
Combined gas mileage:
18 MPG
Fuel type:
Gasoline
Transmission:
Automatic
Mileage:
113,033
Stock #:
26441
VIN:
1GKS2CKJ9JR209491
Gray 2018 GMC Yukon SUV / Crossover Four-Wheel Drive Automatic
Sterling Auto

Sponsored by Sterling Auto

2018 GMC Yukon

Denali 4WD

113,033 mi

Franktown, CO
9 mi away
Good Deal

$25,300

Year:
2024
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
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Brown
Transmission:
Automatic
Mileage:
29,042
Stock #:
6ML0055B
VIN:
1GTUUHEL3RZ366440
Gray 2024 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

Sponsored Listing

2024 GMC Sierra 1500

Denali Ultimate Crew Cab 4WD

29,042 mi

Highlands Ranch, CO
15 mi away
Good Deal

$56,961

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
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
6-Speed Automatic
Mileage:
95,617
Stock #:
HG502737
VIN:
3GTU2MECXHG502737
Dark Slate Metallic 2017 GMC Sierra 1500 Pickup Truck Four-Wheel Drive 6-Speed Automatic
Price drop

-$896

Sponsored Listing

2017 GMC Sierra 1500

SLE Crew Cab 4WD

95,617 mi

Golden, CO
29 mi away
Good Deal

$22,849

$21,953

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
310 hp 2.7L I4
Exterior color:
Onyx Black
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
5
Stock #:
G260641
VIN:
1GTPUCEK4TZ388199
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

Elevation Crew Cab 4WD

Henderson, CO
35 mi away

New car

MSRP $57,045

$47,795

Year:
2022
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
401 hp 6.6L V8
Exterior color:
Silver
Fuel type:
Gasoline
Interior color:
3Sa--Cloth, Gideon / Dark Atmosphere, Interior Tri
Transmission:
Automatic
Mileage:
49,752
Stock #:
ANF207795
VIN:
1GT29ME72NF207795
Silver 2022 GMC Sierra 2500HD Pickup Truck Four-Wheel Drive Automatic
Price drop

-$1,682

 

2022 GMC Sierra 2500HD

SLE Double Cab 4WD

49,752 mi

Colorado Springs, CO
38 mi away
Good Deal

$40,678

$39,685

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:
53
Stock #:
TZ509551
VIN:
1GTUUCE88TZ509551
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,000

 

2026 GMC Sierra 1500

Elevation Crew Cab 4WD

Lone Tree, CO
14 mi away

New car

MSRP $62,700

$51,249

$49,249

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:
Jet Black
Transmission:
Automatic
Mileage:
10
Stock #:
G260703
VIN:
3GTUUGE81TG298460
Glacier White Tricoat 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$1,505

 

2026 GMC Sierra 1500

Denali Crew Cab 4WD

Henderson, CO
35 mi away

New car

MSRP $75,279

$64,841

$63,336

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:
22
Stock #:
TG328591
VIN:
3GTUUCE82TG328591
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,000

 

2026 GMC Sierra 1500

Elevation Crew Cab 4WD

Lone Tree, CO
14 mi away

New car

MSRP $65,064

$52,614

$50,614

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
310 hp 2.7L I4
Exterior color:
Summit White
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
5
Stock #:
G260659
VIN:
1GTPUCEK5TZ396649
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

Elevation Crew Cab 4WD

Henderson, CO
35 mi away

New car

MSRP $56,550

$47,360

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 w/Kalahari Accents
Transmission:
Automatic
Mileage:
50
Stock #:
260612
VIN:
1GTUUEE82TZ414723
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,849

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Aurora, CO
23 mi away

New car

MSRP $72,860

$64,348

$62,348

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Fuel type:
Diesel
Interior color:
Black
Transmission:
Automatic
Mileage:
14
Stock #:
G642487
VIN:
3GTUUGE88TG442487
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,000

 

2026 GMC Sierra 1500

Denali Crew Cab 4WD

Brighton, CO
40 mi away

New car

MSRP $74,480

$62,585

$60,585

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
14 mi away

New car

MSRP $66,835

$54,384

Year:
2021
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Exterior color:
Gray (Dark Sky Metallic)
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
98,996
Stock #:
U16967
VIN:
3GTU9CED7MG173732
Gray (Dark Sky Metallic) 2021 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

Sponsored Listing

2021 GMC Sierra 1500

Elevation Crew Cab 4WD

98,996 mi

Henderson, CO
35 mi away
Great Deal
Manufacturer certified

$28,296

Year:
2018
Make:
GMC
Model:
Yukon
Body type:
SUV / Crossover
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
420 hp 6.2L V8
Exterior color:
Gray
Combined gas mileage:
18 MPG
Fuel type:
Gasoline
Transmission:
Automatic
Mileage:
113,033
Stock #:
26441
VIN:
1GKS2CKJ9JR209491
Gray 2018 GMC Yukon SUV / Crossover Four-Wheel Drive Automatic
Sterling Auto

Sponsored by Sterling Auto

2018 GMC Yukon

Denali 4WD

113,033 mi

Franktown, CO
9 mi away
Good Deal

$25,300

Year:
2024
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
Combined gas mileage:
17 MPG
Fuel type:
Gasoline
Interior color:
Brown
Transmission:
Automatic
Mileage:
29,042
Stock #:
6ML0055B
VIN:
1GTUUHEL3RZ366440
Gray 2024 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

Sponsored Listing

2024 GMC Sierra 1500

Denali Ultimate Crew Cab 4WD

29,042 mi

Highlands Ranch, CO
15 mi away
Good Deal

$56,961

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
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
6-Speed Automatic
Mileage:
95,617
Stock #:
HG502737
VIN:
3GTU2MECXHG502737
Dark Slate Metallic 2017 GMC Sierra 1500 Pickup Truck Four-Wheel Drive 6-Speed Automatic
Price drop

-$896

Sponsored Listing

2017 GMC Sierra 1500

SLE Crew Cab 4WD

95,617 mi

Golden, CO
29 mi away
Good Deal

$22,849

$21,953

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
310 hp 2.7L I4
Exterior color:
Onyx Black
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
5
Stock #:
G260641
VIN:
1GTPUCEK4TZ388199
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

Elevation Crew Cab 4WD

Henderson, CO
35 mi away

New car

MSRP $57,045

$47,795

Year:
2022
Make:
GMC
Model:
Sierra 2500HD
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
401 hp 6.6L V8
Exterior color:
Silver
Fuel type:
Gasoline
Interior color:
3Sa--Cloth, Gideon / Dark Atmosphere, Interior Tri
Transmission:
Automatic
Mileage:
49,752
Stock #:
ANF207795
VIN:
1GT29ME72NF207795
Silver 2022 GMC Sierra 2500HD Pickup Truck Four-Wheel Drive Automatic
Price drop

-$1,682

 

2022 GMC Sierra 2500HD

SLE Double Cab 4WD

49,752 mi

Colorado Springs, CO
38 mi away
Good Deal

$40,678

$39,685

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:
53
Stock #:
TZ509551
VIN:
1GTUUCE88TZ509551
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,000

 

2026 GMC Sierra 1500

Elevation Crew Cab 4WD

Lone Tree, CO
14 mi away

New car

MSRP $62,700

$51,249

$49,249

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:
Jet Black
Transmission:
Automatic
Mileage:
10
Stock #:
G260703
VIN:
3GTUUGE81TG298460
Glacier White Tricoat 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$1,505

 

2026 GMC Sierra 1500

Denali Crew Cab 4WD

Henderson, CO
35 mi away

New car

MSRP $75,279

$64,841

$63,336

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:
22
Stock #:
TG328591
VIN:
3GTUUCE82TG328591
Onyx Black 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,000

 

2026 GMC Sierra 1500

Elevation Crew Cab 4WD

Lone Tree, CO
14 mi away

New car

MSRP $65,064

$52,614

$50,614

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
310 hp 2.7L I4
Exterior color:
Summit White
Fuel type:
Gasoline
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
5
Stock #:
G260659
VIN:
1GTPUCEK5TZ396649
Summit White 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 1500

Elevation Crew Cab 4WD

Henderson, CO
35 mi away

New car

MSRP $56,550

$47,360

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 w/Kalahari Accents
Transmission:
Automatic
Mileage:
50
Stock #:
260612
VIN:
1GTUUEE82TZ414723
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,849

 

2026 GMC Sierra 1500

AT4 Crew Cab 4WD

Aurora, CO
23 mi away

New car

MSRP $72,860

$64,348

$62,348

Year:
2026
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Engine:
3L I6 Diesel
Exterior color:
Sterling Metallic
Fuel type:
Diesel
Interior color:
Black
Transmission:
Automatic
Mileage:
14
Stock #:
G642487
VIN:
3GTUUGE88TG442487
Sterling Metallic 2026 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic
Price drop

-$2,000

 

2026 GMC Sierra 1500

Denali Crew Cab 4WD

Brighton, CO
40 mi away

New car

MSRP $74,480

$62,585

$60,585

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
14 mi away

New car

MSRP $66,835

$54,384

Year:
2021
Make:
GMC
Model:
Sierra 1500
Body type:
Pickup Truck
Doors:
4 doors
Drivetrain:
Four-Wheel Drive
Exterior color:
Gray (Dark Sky Metallic)
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
98,996
Stock #:
U16967
VIN:
3GTU9CED7MG173732
Gray (Dark Sky Metallic) 2021 GMC Sierra 1500 Pickup Truck Four-Wheel Drive Automatic

Sponsored Listing

2021 GMC Sierra 1500

Elevation Crew Cab 4WD

98,996 mi

Henderson, CO
35 mi away
Great Deal
Manufacturer certified

$28,296

A better way to discover your best deal

Let us help you find a car you’ll love.