Used Gray GMC Sierra 1500 for Sale in Unity, IL
283 results
- Year:
- 2025
- 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:
- 24 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents, Perforated Leathe
- Transmission:
- Automatic
- Mileage:
- 32,223
- Stock #:
- G2675A
- VIN:
- 1GTUUEE84SZ134137
Sponsored by Monken Chevrolet GMC
2025 GMC Sierra 1500
AT4 Crew Cab 4WD
32,223 mi
Centralia, IL
96 mi away
Good Deal
$55,408
- Year:
- 2011
- 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:
- Gray
- Transmission:
- Automatic
- Mileage:
- 186,707
- Stock #:
- 061926
- VIN:
- 3GTP2VE35BG329171
New arrival
Sponsored Listing
2011 GMC Sierra 1500
SLE Crew Cab 4WD
186,707 mi
Nashville, IL
83 mi away
Fair Deal
$9,995
- 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:
- Gray (Dark Sky Metallic)
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Gray (Dark Walnut/Dark Ash Grey, Forge Perforated Leathe)
- Transmission:
- Automatic
- Mileage:
- 52,059
- Stock #:
- 2642212
- VIN:
- 1GTU9FEL2MZ316935
Sponsored Listing
2021 GMC Sierra 1500
Denali Crew Cab 4WD
52,059 mi
Herculaneum, MO
98 mi away
Fair Deal
$42,443
- 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:
- Gray (Satin Steel Metallic)
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 80,492
- Stock #:
- G26-550A
- VIN:
- 3GTU9CED5MG279001
2021 GMC Sierra 1500
Elevation Crew Cab 4WD
80,492 mi
Sikeston, MO
23 mi away
Fair Deal
$34,125
- 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:
- Black
- Transmission:
- Automatic
- Mileage:
- 52,657
- Stock #:
- 6148A
- VIN:
- 3GTUUEE82RG354502
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
52,657 mi
Paragould, AR
98 mi away
Great Deal
$50,995
- 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:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black
- Transmission:
- 10-Speed Automatic
- Mileage:
- 17,531
- Stock #:
- HK87810
- VIN:
- 1GTUUCE85RZ206333
2024 GMC Sierra 1500
Elevation Crew Cab 4WD
17,531 mi
Herculaneum, MO
98 mi away
Good Deal
$47,601
- 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:
- Gray (Satin Steel Metallic)
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Mileage:
- 124,730
- Stock #:
- A14720
- VIN:
- 3GTU9DEL5MG414720
2021 GMC Sierra 1500
SLT Crew Cab 4WD
124,730 mi
Murray, KY
64 mi away
Good Deal
$30,173
- Year:
- 2023
- 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:
- Black
- Transmission:
- Automatic
- Mileage:
- 37,106
- Stock #:
- 8083A
- VIN:
- 3GTUUDEL3PG328504
2023 GMC Sierra 1500
SLT Crew Cab 4WD
37,106 mi
Red Bud, IL
84 mi away
Great Deal
$43,774
- 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:
- 25 MPG
- Fuel type:
- Diesel
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 25,779
- Stock #:
- 14860A
- VIN:
- 1GTUUEE81RZ274978
2024 GMC Sierra 1500
AT4 Crew Cab 4WD
25,779 mi
Farmington, MO
78 mi away
Great Deal
$52,941
- 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:
- Gray
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Transmission:
- 6-Speed Automatic
- Mileage:
- 58,058
- Stock #:
- MX4443
- VIN:
- 1GTR9AEF1MZ126871
Price drop
-$855
2021 GMC Sierra 1500
Double Cab 4WD
58,058 mi
Home delivery from Louisville, TN
Price includes $549 shipping
Great Deal
$28,708
$27,853
- Year:
- 2020
- 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 (Satin Steel Metallic)
- Combined gas mileage:
- 19 MPG
- Fuel type:
- Gasoline
- Interior color:
- Dark Walnut/Slate
- Transmission:
- Automatic
- Mileage:
- 121,359
- Stock #:
- G26245A
- VIN:
- 3GTU9DED6LG321776
2020 GMC Sierra 1500
SLT Crew Cab 4WD
121,359 mi
Paducah, KY
35 mi away
Fair Deal
$33,094
- 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:
- Gray (Satin Steel Metallic)
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Gray (Dark Walnut/Dark Ash Grey)
- Transmission:
- Automatic
- Mileage:
- 84,532
- Stock #:
- MG126957
- VIN:
- 3GTU9FEL4MG126957
2021 GMC Sierra 1500
Denali Crew Cab 4WD
84,532 mi
Home delivery from Batesville, AR
Price includes $192 shipping
Good Deal
$37,987
- 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 With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 69,956
- Stock #:
- 100473
- VIN:
- 3GTP9EEL6LG162204
2020 GMC Sierra 1500
AT4 Crew Cab 4WD
69,956 mi
Home delivery from Merritt Island, FL
Price includes $1,576 shipping
Good Deal
$39,611
- 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:
- Gray (Steel Metallic)
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 111,552
- Stock #:
- 446945
- VIN:
- 1GTP9EEL9MZ446945
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
111,552 mi
Home delivery from Columbus, OH
Price includes $778 shipping
Good Deal
$33,288
- 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:
- 98,588
- Stock #:
- b258586
- VIN:
- 1GTU9FELXLZ258586
2020 GMC Sierra 1500
Denali Crew Cab 4WD
98,588 mi
Home delivery from Berlin, CT
Price includes $934 shipping
Good Deal
$33,734
- Year:
- 2011
- 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:
- Gray
- Transmission:
- Automatic
- Mileage:
- 186,707
- Stock #:
- 061926
- VIN:
- 3GTP2VE35BG329171
New arrival
2011 GMC Sierra 1500
SLE Crew Cab 4WD
186,707 mi
Nashville, IL
83 mi away
Fair Deal
$9,995
- 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:
- Gray (Dark Sky Metallic)
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Gray (Dark Walnut/Dark Ash Grey, Forge Perforated Leathe)
- Transmission:
- Automatic
- Mileage:
- 52,059
- Stock #:
- 2642212
- VIN:
- 1GTU9FEL2MZ316935
2021 GMC Sierra 1500
Denali Crew Cab 4WD
52,059 mi
Herculaneum, MO
98 mi away
Fair Deal
$42,443
- 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
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 10-Speed Automatic
- Mileage:
- 25,469
- Stock #:
- R88073
- VIN:
- 3GTUUGEL3SG151284
2025 GMC Sierra 1500
Denali Crew Cab 4WD
25,469 mi
Herculaneum, MO
98 mi away
Fair Deal
$59,915
- Year:
- 2021
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- 4X2
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Gray ([G9K] Satin Steel Metallic)
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 81,967
- Stock #:
- 429321S
- VIN:
- 3GTP8CED7MG429321
![Gray ([G9K] Satin Steel Metallic) 2021 GMC Sierra 1500 Pickup Truck 4X2 Automatic](https://static.cargurus.com/images/forsale/2026/06/05/17/38/2021_gmc_sierra_1500-pic-9057248470881592356-1024x768.jpeg?io=true&width=640&height=480&fit=bounds&format=jpg&auto=webp)
2021 GMC Sierra 1500
Elevation Crew Cab RWD
81,967 mi
Home delivery from Lighthouse Point, FL
Free home delivery
Fair Deal
$30,900
- 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
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- 8-Speed Automatic
- Mileage:
- 80,454
- Stock #:
- MX4533
- VIN:
- 1GTU9FEDXKZ333052
Price drop
-$870
2019 GMC Sierra 1500
Denali Crew Cab 4WD
80,454 mi
Home delivery from Michigan Center, MI
Price includes $794 shipping
Good Deal
$33,757
$32,887
- 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:
- Gray
- Combined gas mileage:
- 16 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 58,559
- Stock #:
- MZ192986J
- VIN:
- 1GTP9EEL1MZ192986
New arrival
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
58,559 mi
Mount Vernon, IN
89 mi away
Good Deal
$39,990
- 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
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Black
- Transmission:
- Automatic
- Mileage:
- 90,638
- Stock #:
- 448920
- VIN:
- 3GTU9FEL4LG448920
2020 GMC Sierra 1500
Denali Crew Cab 4WD
90,638 mi
Jackson, MO
26 mi away
Good Deal
$34,900
- Year:
- 2024
- Make:
- GMC
- Model:
- Sierra 1500
- Body type:
- Pickup Truck
- Doors:
- 4 doors
- Drivetrain:
- Four-Wheel Drive
- Engine:
- 355 hp 5.3L V8
- Exterior color:
- Thunderstorm Gray
- Combined gas mileage:
- 17 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black
- Transmission:
- Automatic
- Mileage:
- 71,488
- Stock #:
- G26196A
- VIN:
- 3GTUUCED3RG280945
2024 GMC Sierra 1500
Elevation Crew Cab 4WD
71,488 mi
Paducah, KY
35 mi away
Fair Deal
$42,594
- 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:
- Gray (Dark Sky Metallic)
- Combined gas mileage:
- 18 MPG
- Fuel type:
- Gasoline
- Interior color:
- Jet Black With Kalahari Accents
- Transmission:
- Automatic
- Mileage:
- 84,643
- Stock #:
- 9663A
- VIN:
- 1GTP9EED5MZ348696
Sponsored Listing
2021 GMC Sierra 1500
AT4 Crew Cab 4WD
84,643 mi
Cape Girardeau, MO
18 mi away
Good Deal
$36,391
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