Used Gray GMC for Sale inCastle Rock, CO
528 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:
- 420 hp 6.2L V8
- Exterior color:
- Thunderstorm Gray
- Combined gas mileage:
- 15 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black (Obsidian Rush, Full Grain Leather Front Seat Trim)
- Transmission:
- Automatic
- Mileage:
- 14,230
- Stock #:
- ASG139356
- VIN:
- 3GTUUFEL5SG139356
New arrival
Sponsored by Alpine Buick GMC South
2025 GMC Sierra 1500
AT4X Crew Cab 4WD
14,230 mi
Colorado Springs, CO
38 mi away
Fair Deal
$66,590
- Year:
- 2021
- Make:
- GMC
- Model:
- Acadia
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 230 hp 2L I4
- Exterior color:
- Gray
- Combined gas mileage:
- 24 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 118,192
- Stock #:
- S71026
- VIN:
- 1GKKNRL42MZ213745
Sponsored Listing
2021 GMC Acadia
SLE AWD
118,192 mi
Englewood, CO
22 mi away
Fair Deal
$17,487
- 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
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 113,310
- Stock #:
- TS71072
- VIN:
- 1GKS2CKJ6JR194125
Sponsored Listing
2018 GMC Yukon
Denali 4WD
113,310 mi
Englewood, CO
22 mi away
Fair Deal
$28,487
- 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
Franktown, CO
9 mi away
Good Deal
$27,950
- Year:
- 2019
- Make:
- GMC
- Model:
- Acadia
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 310 hp 3.6L V6
- Exterior color:
- Gray (Iridium Metallic)
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 6-Speed Automatic
- Mileage:
- 89,465
- Stock #:
- KZ100738
- VIN:
- 1GKKNXLSXKZ100738
Price drop
-$1,355
2019 GMC Acadia
Denali AWD
89,465 mi
Englewood, CO
18 mi away
Good Deal
$20,346
$19,690
- Year:
- 2012
- Make:
- GMC
- Model:
- Sierra 2500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 360 hp 6L V8
- Exterior color:
- Stealth Gray Metallic
- Fuel type:
- Gasoline
- Interior color:
- Black (Ebony)
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 101,425
- Stock #:
- N105104
- VIN:
- 1GT120CG8CF105104
Price drop
-$1,316
2012 GMC Sierra 2500HD
SLE Crew Cab SB 4WD
101,425 mi
Colorado Springs, CO
29 mi away
Good Deal
$20,313
$19,892
- Year:
- 2020
- Make:
- GMC
- Model:
- Acadia
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 310 hp 3.6L V6
- Exterior color:
- Gray (Satin Steel Metallic)
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 116,489
- Stock #:
- 16337A
- VIN:
- 1GKKNXLS3LZ209950
Price drop
-$505
2020 GMC Acadia
Denali AWD
116,489 mi
Brighton, CO
40 mi away
Great Deal
$19,230
$18,725
- Year:
- 2020
- Make:
- GMC
- Model:
- Yukon
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Gray
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown (TAN)
- Transmission:
- Automatic
- Mileage:
- 85,007
- Stock #:
- 265906
- VIN:
- 1GKS1DKCXLR265906
2020 GMC Yukon
SLT Standard Edition RWD
85,007 mi
Home delivery from Tampa, FL
Price includes $1,502 shipping
Good Deal
$28,482
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 3L I6 Diesel
- Exterior color:
- Thunderstorm Gray
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Diesel
- Interior color:
- Black (Obsidian Rush)
- Transmission:
- Automatic
- Mileage:
- 34,402
- Stock #:
- TG216910A
- VIN:
- 3GTUUFE84RG148832
2024 GMC Sierra 1500
AT4X Crew Cab 4WD
34,402 mi
Thornton, CO
36 mi away
Good Deal
$59,776
- Year:
- 2020
- Make:
- GMC
- Model:
- Yukon
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Gray (Dark Sky Metallic)
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Mileage:
- 104,411
- Stock #:
- MP7511
- VIN:
- 1GKS1CKJ1LR138275
New arrival
2020 GMC Yukon
Denali RWD
104,411 mi
Northglenn, CO
36 mi away
Fair Deal
$30,789
- 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:
- Gray
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 8-Speed Automatic Overdrive
- Mileage:
- 133,019
- Stock #:
- 334979
- VIN:
- 1GTU9BED4KZ334979
2019 GMC Sierra 1500
SLE Crew Cab 4WD
133,019 mi
Aurora, CO
27 mi away
Great Deal
$22,294
- 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:
- Thunderstorm Gray
- Combined gas mileage:
- 15 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black (Obsidian Rush)
- Transmission:
- Automatic
- Mileage:
- 37,086
- Stock #:
- G319331
- VIN:
- 3GTUUFELXRG319331
2024 GMC Sierra 1500
AT4X Crew Cab 4WD
37,086 mi
Boulder, CO
49 mi away
Great Deal
$54,350
- 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
New arrival
2021 GMC Sierra 1500
Elevation Crew Cab 4WD
98,996 mi
Henderson, CO
35 mi away
Fair Deal
$33,093
- Year:
- 2018
- Make:
- GMC
- Model:
- Terrain
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 1.5L I4
- Exterior color:
- Gray
- Combined gas mileage:
- 26 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- 9-Speed Automatic
- Mileage:
- 120,151
- Stock #:
- 244232
- VIN:
- 3GKALVEV3JL244232
2018 GMC Terrain
SLT AWD
120,151 mi
Denver, CO
22 mi away
Great Deal
$11,699
- Year:
- 2025
- Make:
- GMC
- Model:
- Sierra 3500HD
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 401 hp 6.6L V8
- Exterior color:
- Thunderstorm Gray
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 10-Speed Automatic
- Mileage:
- 20,805
- Stock #:
- KM142525
- VIN:
- 1GT4UTE72SF142525
2025 GMC Sierra 3500HD
SLE Crew Cab 4WD
20,805 mi
Highlands Ranch, CO
14 mi away
Fair Deal
$56,640
- 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:
- Gray (Iridium Metallic)
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Flex Fuel Vehicle
- Interior color:
- Jet Black/Dark Ash
- Transmission:
- 6-Speed Automatic Overdrive
- Mileage:
- 96,562
- Stock #:
- LT1002
- VIN:
- 3GTU2VECXEG278242
New arrival
2014 GMC Sierra 1500
SLT Crew Cab 4WD
96,562 mi
Home delivery from Louisville, TN
Price includes $2,095 shipping
Good Deal
$21,594
- Year:
- 2014
- Make:
- GMC
- Model:
- Acadia
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Front-Wheel Drive
- Engine:
- 288 hp 3.6L V6
- Exterior color:
- Gray
- Combined gas mileage:
- 20 MPG
- Fuel type:
- Gasoline
- Interior color:
- Brown
- Transmission:
- Automatic
- Mileage:
- 146,667
- Stock #:
- TWSR69775
- VIN:
- 1GKKRTKD0EJ275857
2014 GMC Acadia
Denali FWD
146,667 mi
Englewood, CO
22 mi away
Good Deal
$8,487
- 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
- Fuel type:
- Gasoline
- Interior color:
- Black
- Mileage:
- 37,180
- Stock #:
- A15466B
- VIN:
- 1GTUUEEL0RZ259974
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
37,180 mi
Home delivery from Wahoo, NE
Price includes $454 shipping
Great Deal
$52,653
- Year:
- 2019
- Make:
- GMC
- Model:
- Acadia
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 310 hp 3.6L V6
- Exterior color:
- Gray (Dark Sky Metallic)
- Combined gas mileage:
- 21 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 135,854
- Stock #:
- U16947
- VIN:
- 1GKKNULS7KZ243256
Price drop
-$399
2019 GMC Acadia
SLT-1 AWD
135,854 mi
Henderson, CO
35 mi away
Fair Deal
$14,593
$14,194
- Year:
- 2023
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Gray
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Gray
- Transmission:
- Automatic
- Mileage:
- 56,358
- Stock #:
- 19809
- VIN:
- 1GTRUBED0PZ259824
2023 GMC Sierra 1500
SLE Double Cab 4WD
56,358 mi
Home delivery from Yakima, WA
Price includes $1,428 shipping
Good Deal
$33,630
- Year:
- 2022
- Make:
- GMC
- Model:
- Sierra 1500 Limited
- 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:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 91,075
- Stock #:
- NG104158
- VIN:
- 3GTP9EEL6NG104158
2022 GMC Sierra 1500 Limited
AT4 Crew Cab 4WD
91,075 mi
Lone Tree, CO
14 mi away
Great Deal
$34,327
- Year:
- 2013
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 315 hp 5.3L V8 Flex Fuel Vehicle
- Exterior color:
- Gray
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Flex Fuel Vehicle
- Interior color:
- Brown (Tan)
- Transmission:
- 6-Speed Automatic
- Mileage:
- 96,280
- Stock #:
- 26254
- VIN:
- 3GTP2WE73DG280998
2013 GMC Sierra 1500
SLT Crew Cab 4WD
96,280 mi
Franktown, CO
9 mi away
Fair Deal
$19,950
- Year:
- 2023
- 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:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 61,545
- Stock #:
- AHCSPR515735
- VIN:
- 1GKS2DKL7PR515735
New arrival
2023 GMC Yukon
Denali 4WD
61,545 mi
Centennial, CO
16 mi away
Fair Deal
$59,287
- Year:
- 2016
- Make:
- GMC
- Model:
- Yukon
- Body type:
- SUV / Crossover
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 420 hp 6.2L V8
- Exterior color:
- Gray (Iridium Metallic)
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Cocoa/Shale
- Transmission:
- 8-Speed Automatic
- Mileage:
- 157,565
- Stock #:
- GR399245
- VIN:
- 1GKS2CKJXGR399245
Sponsored Listing
2016 GMC Yukon
Denali 4WD
157,565 mi
Parker, CO
14 mi away
Fair Deal
$18,990
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