Used GMC Sierra 1500 SLT for Sale nearFort Collins, CO
424 vehicles found
Shop with transparent pricing.
Only show listings that include dealer fees- 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:
- Titanium Rush Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 56,508
- Stock #:
- P3644
- VIN:
- 3GTUUDED2SG197714
Sponsored by Celebration Chevrolet
2025 GMC Sierra 1500
SLT Crew Cab 4WD
56,508 mi
Aurora, CO
63 mi away
Fair Deal
$39,626
- Year:
- 2020
- 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 (Satin Steel Metallic)
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 79,564
- Stock #:
- LG394776T
- VIN:
- 3GTU9DEL9LG394776
New arrival
Sponsored Listing
2020 GMC Sierra 1500
SLT Crew Cab 4WD
79,564 mi
Castle Rock, CO
85 mi away
Good Deal
$35,699
- Year:
- 2021
- 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:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Mileage:
- 97,311
- Stock #:
- TF302772A
- VIN:
- 1GTU9DED4MZ209575
Sponsored Listing
2021 GMC Sierra 1500
SLT Crew Cab 4WD
97,311 mi
Loveland, CO
11 mi away
Fair Deal
$34,230
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Red
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Dark Walnut/Slate, Perforated Leather-Appointed Fr
- Transmission:
- Automatic
- Mileage:
- 57,879
- Stock #:
- TMG233124
- VIN:
- 3GTU9DET4MG233124
2021 GMC Sierra 1500
SLT Crew Cab 4WD
57,879 mi
Highlands Ranch, CO
70 mi away
Good Deal
$35,281
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Gray
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Dark Walnut/Slate, Perforated Leather-Appointed Fr
- Transmission:
- Automatic
- Mileage:
- 38,552
- Stock #:
- TRG430734
- VIN:
- 3GTUUDE86RG430734
2024 GMC Sierra 1500
SLT Crew Cab 4WD
38,552 mi
Highlands Ranch, CO
70 mi away
Fair Deal
$45,681
- 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:
- Titanium
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 41,878
- Stock #:
- P133905
- VIN:
- 1GTUUDED8SZ133905
2025 GMC Sierra 1500
SLT Crew Cab 4WD
41,878 mi
Denver, CO
62 mi away
Fair Deal
$40,665
- 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:
- White Frost Tricoat
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 103,830
- Stock #:
- G455922A
- VIN:
- 3GTU9DEL9MG123752
2021 GMC Sierra 1500
SLT Crew Cab 4WD
103,830 mi
Cheyenne, WY
41 mi away
Fair Deal
$34,629
- 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:
- Onyx Black
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 41,477
- Stock #:
- EP8884
- VIN:
- 1GTUUDED1SZ292703
New arrival
2025 GMC Sierra 1500
SLT Crew Cab 4WD
41,477 mi
Thornton, CO
48 mi away
Fair Deal
$40,946
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Gray (Satin Steel Metallic)
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 80,811
- Stock #:
- G260298A
- VIN:
- 3GTU9DET4MG141608
Price drop
-$1,000
2021 GMC Sierra 1500
SLT Crew Cab 4WD
80,811 mi
Cheyenne, WY
41 mi away
Good Deal
$34,629
$33,629
- 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:
- 81,646
- Stock #:
- C0238A
- VIN:
- 1GTU9DED2KZ194829
Price drop
-$1,898
2019 GMC Sierra 1500
SLT Crew Cab 4WD
81,646 mi
Fort Collins, CO
2 mi away
Great Deal
$32,684
$30,786
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Summit White
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 52,420
- Stock #:
- U17003
- VIN:
- 3GTUUDE86RG183134
2024 GMC Sierra 1500
SLT Crew Cab 4WD
52,420 mi
Henderson, CO
50 mi away
Great Deal
$40,653
- Year:
- 2021
- 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:
- 80,064
- Stock #:
- TR474395B
- VIN:
- 1GTU9DET0MZ173360
Price drop
-$1,013
2021 GMC Sierra 1500
SLT Crew Cab 4WD
80,064 mi
Loveland, CO
11 mi away
Great Deal
$33,724
$32,711
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Sterling Metallic
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 66,919
- Stock #:
- TFA77409A
- VIN:
- 3GTUUDE87PG196634
2023 GMC Sierra 1500
SLT Crew Cab 4WD
66,919 mi
Laramie, WY
56 mi away
Fair Deal
$40,888
- 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:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 61,387
- Stock #:
- G681896B
- VIN:
- 3GTU2NEC2JG344891
New arrival
2018 GMC Sierra 1500
SLT Crew Cab 4WD
61,387 mi
Brighton, CO
45 mi away
Fair Deal
$32,488
- 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:
- Summit White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 40,613
- Stock #:
- E14559
- VIN:
- 3GTUUDED2SG179200
Price drop
-$1,000
2025 GMC Sierra 1500
SLT Crew Cab 4WD
40,613 mi
Englewood, CO
69 mi away
Good Deal
$40,000
$39,000
- 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:
- Black
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 127,803
- Stock #:
- A408
- VIN:
- 3GTU2VEC3FG476033
2015 GMC Sierra 1500
SLT Crew Cab 4WD
127,803 mi
Denver, CO
60 mi away
Great Deal
$16,998
- Year:
- 2014
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 5.3L V8 Flex Fuel Vehicle
- Exterior color:
- Summit White
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Flex Fuel Vehicle
- Interior color:
- Black
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 114,116
- Stock #:
- G562912
- VIN:
- 3GTU2VEC3EG562912
2014 GMC Sierra 1500
SLT Crew Cab 4WD
114,116 mi
Boulder, CO
39 mi away
Good Deal
$19,744
- 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:
- Summit White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black/Spice Red
- Transmission:
- 8-Speed Automatic
- Mileage:
- 125,738
- Stock #:
- 138477A
- VIN:
- 3GTU2NEC0HG264788
2017 GMC Sierra 1500
SLT Crew Cab 4WD
125,738 mi
Greeley, CO
22 mi away
Fair Deal
$22,513
- 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:
- Black
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 132,238
- Stock #:
- V355237
- VIN:
- 3GTU2VEC6FG355237
2015 GMC Sierra 1500
SLT Crew Cab 4WD
132,238 mi
Sterling, CO
99 mi away
Good Deal
$18,995
- Year:
- 2014
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 5.3L V8 Flex Fuel Vehicle
- Exterior color:
- Onyx Black
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Flex Fuel Vehicle
- Interior color:
- Cocoa/Dune
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 185,479
- Stock #:
- AN46984
- VIN:
- 3GTP1VECXEG546903
2014 GMC Sierra 1500
SLT Crew Cab
185,479 mi
Longmont, CO
28 mi away
Good Deal
$13,791
- 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:
- Titanium Rush Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 52,209
- Stock #:
- ARP47203
- VIN:
- 3GTUUDED2SG200451
2025 GMC Sierra 1500
SLT Crew Cab 4WD
52,209 mi
Longmont, CO
28 mi away
Good Deal
$39,210
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Sterling Metallic
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 101,945
- Stock #:
- U1434
- VIN:
- 3GTUUDE80RG119493
2024 GMC Sierra 1500
SLT Crew Cab 4WD
101,945 mi
Frederick, CO
32 mi away
Good Deal
$34,900
- Year:
- 2020
- 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 (Satin Steel Metallic)
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 95,366
- Stock #:
- G167719
- VIN:
- 3GTU9DEL2LG167719
2020 GMC Sierra 1500
SLT Crew Cab 4WD
95,366 mi
Boulder, CO
39 mi away
Good Deal
$32,500
- 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:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 74,747
- Stock #:
- FG291278
- VIN:
- 3GTU2VEC6FG291278
Sponsored Listing
2015 GMC Sierra 1500
SLT Crew Cab 4WD
74,747 mi
Golden, CO
59 mi away
Fair Deal
$26,990
- 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:
- Titanium Rush Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 56,508
- Stock #:
- P3644
- VIN:
- 3GTUUDED2SG197714
Sponsored by Celebration Chevrolet
2025 GMC Sierra 1500
SLT Crew Cab 4WD
56,508 mi
Aurora, CO
63 mi away
Fair Deal
$39,626
- Year:
- 2020
- 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 (Satin Steel Metallic)
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 79,564
- Stock #:
- LG394776T
- VIN:
- 3GTU9DEL9LG394776
New arrival
Sponsored Listing
2020 GMC Sierra 1500
SLT Crew Cab 4WD
79,564 mi
Castle Rock, CO
85 mi away
Good Deal
$35,699
- Year:
- 2021
- 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:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Mileage:
- 97,311
- Stock #:
- TF302772A
- VIN:
- 1GTU9DED4MZ209575
Sponsored Listing
2021 GMC Sierra 1500
SLT Crew Cab 4WD
97,311 mi
Loveland, CO
11 mi away
Fair Deal
$34,230
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Red
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Dark Walnut/Slate, Perforated Leather-Appointed Fr
- Transmission:
- Automatic
- Mileage:
- 57,879
- Stock #:
- TMG233124
- VIN:
- 3GTU9DET4MG233124
2021 GMC Sierra 1500
SLT Crew Cab 4WD
57,879 mi
Highlands Ranch, CO
70 mi away
Good Deal
$35,281
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Gray
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Dark Walnut/Slate, Perforated Leather-Appointed Fr
- Transmission:
- Automatic
- Mileage:
- 38,552
- Stock #:
- TRG430734
- VIN:
- 3GTUUDE86RG430734
2024 GMC Sierra 1500
SLT Crew Cab 4WD
38,552 mi
Highlands Ranch, CO
70 mi away
Fair Deal
$45,681
- 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:
- Titanium
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 41,878
- Stock #:
- P133905
- VIN:
- 1GTUUDED8SZ133905
2025 GMC Sierra 1500
SLT Crew Cab 4WD
41,878 mi
Denver, CO
62 mi away
Fair Deal
$40,665
- 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:
- White Frost Tricoat
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 103,830
- Stock #:
- G455922A
- VIN:
- 3GTU9DEL9MG123752
2021 GMC Sierra 1500
SLT Crew Cab 4WD
103,830 mi
Cheyenne, WY
41 mi away
Fair Deal
$34,629
- 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:
- Onyx Black
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 41,477
- Stock #:
- EP8884
- VIN:
- 1GTUUDED1SZ292703
New arrival
2025 GMC Sierra 1500
SLT Crew Cab 4WD
41,477 mi
Thornton, CO
48 mi away
Fair Deal
$40,946
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 277 hp 3L I6 Diesel
- Exterior color:
- Gray (Satin Steel Metallic)
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 80,811
- Stock #:
- G260298A
- VIN:
- 3GTU9DET4MG141608
Price drop
-$1,000
2021 GMC Sierra 1500
SLT Crew Cab 4WD
80,811 mi
Cheyenne, WY
41 mi away
Good Deal
$34,629
$33,629
- 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:
- 81,646
- Stock #:
- C0238A
- VIN:
- 1GTU9DED2KZ194829
Price drop
-$1,898
2019 GMC Sierra 1500
SLT Crew Cab 4WD
81,646 mi
Fort Collins, CO
2 mi away
Great Deal
$32,684
$30,786
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Summit White
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 52,420
- Stock #:
- U17003
- VIN:
- 3GTUUDE86RG183134
2024 GMC Sierra 1500
SLT Crew Cab 4WD
52,420 mi
Henderson, CO
50 mi away
Great Deal
$40,653
- Year:
- 2021
- 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:
- 80,064
- Stock #:
- TR474395B
- VIN:
- 1GTU9DET0MZ173360
Price drop
-$1,013
2021 GMC Sierra 1500
SLT Crew Cab 4WD
80,064 mi
Loveland, CO
11 mi away
Great Deal
$33,724
$32,711
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Sterling Metallic
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 66,919
- Stock #:
- TFA77409A
- VIN:
- 3GTUUDE87PG196634
2023 GMC Sierra 1500
SLT Crew Cab 4WD
66,919 mi
Laramie, WY
56 mi away
Fair Deal
$40,888
- 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:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 61,387
- Stock #:
- G681896B
- VIN:
- 3GTU2NEC2JG344891
New arrival
2018 GMC Sierra 1500
SLT Crew Cab 4WD
61,387 mi
Brighton, CO
45 mi away
Fair Deal
$32,488
- 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:
- Summit White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 40,613
- Stock #:
- E14559
- VIN:
- 3GTUUDED2SG179200
Price drop
-$1,000
2025 GMC Sierra 1500
SLT Crew Cab 4WD
40,613 mi
Englewood, CO
69 mi away
Good Deal
$40,000
$39,000
- 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:
- Black
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Transmission:
- Automatic
- Mileage:
- 127,803
- Stock #:
- A408
- VIN:
- 3GTU2VEC3FG476033
2015 GMC Sierra 1500
SLT Crew Cab 4WD
127,803 mi
Denver, CO
60 mi away
Great Deal
$16,998
- Year:
- 2014
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 5.3L V8 Flex Fuel Vehicle
- Exterior color:
- Summit White
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Flex Fuel Vehicle
- Interior color:
- Black
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 114,116
- Stock #:
- G562912
- VIN:
- 3GTU2VEC3EG562912
2014 GMC Sierra 1500
SLT Crew Cab 4WD
114,116 mi
Boulder, CO
39 mi away
Good Deal
$19,744
- 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:
- Summit White
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black/Spice Red
- Transmission:
- 8-Speed Automatic
- Mileage:
- 125,738
- Stock #:
- 138477A
- VIN:
- 3GTU2NEC0HG264788
2017 GMC Sierra 1500
SLT Crew Cab 4WD
125,738 mi
Greeley, CO
22 mi away
Fair Deal
$22,513
- 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:
- Black
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 132,238
- Stock #:
- V355237
- VIN:
- 3GTU2VEC6FG355237
2015 GMC Sierra 1500
SLT Crew Cab 4WD
132,238 mi
Sterling, CO
99 mi away
Good Deal
$18,995
- Year:
- 2014
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 5.3L V8 Flex Fuel Vehicle
- Exterior color:
- Onyx Black
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Flex Fuel Vehicle
- Interior color:
- Cocoa/Dune
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 185,479
- Stock #:
- AN46984
- VIN:
- 3GTP1VECXEG546903
2014 GMC Sierra 1500
SLT Crew Cab
185,479 mi
Longmont, CO
28 mi away
Good Deal
$13,791
- 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:
- Titanium Rush Metallic
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 52,209
- Stock #:
- ARP47203
- VIN:
- 3GTUUDED2SG200451
2025 GMC Sierra 1500
SLT Crew Cab 4WD
52,209 mi
Longmont, CO
28 mi away
Good Deal
$39,210
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Sterling Metallic
- Combined gas mileage:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 101,945
- Stock #:
- U1434
- VIN:
- 3GTUUDE80RG119493
2024 GMC Sierra 1500
SLT Crew Cab 4WD
101,945 mi
Frederick, CO
32 mi away
Good Deal
$34,900
- Year:
- 2020
- 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 (Satin Steel Metallic)
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 95,366
- Stock #:
- G167719
- VIN:
- 3GTU9DEL2LG167719
2020 GMC Sierra 1500
SLT Crew Cab 4WD
95,366 mi
Boulder, CO
39 mi away
Good Deal
$32,500
- 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:
- Onyx Black
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 74,747
- Stock #:
- FG291278
- VIN:
- 3GTU2VEC6FG291278
Sponsored Listing
2015 GMC Sierra 1500
SLT Crew Cab 4WD
74,747 mi
Golden, CO
59 mi away
Fair Deal
$26,990
FAQs
How much does the GMC Sierra 1500 SLT cost in Fort Collins, CO?
The average GMC Sierra 1500 SLT costs about $11,093.20. The average price has decreased by -5.4% since last year. The 356 for sale near Fort Collins, CO on CarGurus, range from $5,861 to $73,032 in price.
How many GMC Sierra 1500 SLT vehicles in Fort Collins, CO have no reported accidents or damage?
316 out of 356 for sale near Fort Collins, CO 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 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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