Used Gray GMC Sierra 3500HD for Sale in Colorado

88 results

2024 GMC Sierra 3500HD

AT4 Crew Cab 4WD

110,841 km

$79,995

Great Deal

$1,267/mo est.

Certified Pre-Owned

Rocky Mountain House, AB

1 km away

CarGurus partner

Year:: 2024
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 470 hp 6.6L V8 Biodiesel
Exterior colour:: Gray
Fuel type:: Biodiesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 110,841
Stock #:: 82273
VIN:: 1GT49VEY9RF371140

2026 GMC Sierra 3500HD

Denali Ultimate Crew Cab 4WD

9,638 km

$129,655

CarGurus partner

Year:: 2026
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 470 hp 6.6L V8 Biodiesel
Exterior colour:: Gray
Fuel type:: Biodiesel
Mileage:: 9,638
Stock #:: 86-30680
VIN:: 1GT4UYEY1TF153068

2020 GMC Sierra 3500HD

Base LB 4WD

103,991 km

$48,900

CarGurus partner

Year:: 2020
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 2 doors
Drivetrain:: Four-Wheel Drive
Engine:: 401 hp 6.6L V8
Exterior colour:: Gray
Fuel type:: Gasoline
Transmission:: 6-Speed Automatic
Mileage:: 103,991
Stock #:: 24673
VIN:: 1GT39SE74LF295352

2026 GMC Sierra 3500HD

Denali Ultimate Crew Cab 4WD

11,655 km

$137,980

CarGurus partner

Year:: 2026
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 470 hp 6.6L V8 Biodiesel
Exterior colour:: Gray
Fuel type:: Biodiesel
Transmission:: Automatic
Mileage:: 11,655
Stock #:: GC100520
VIN:: 1GT4UYEY3TF100520

2024 GMC Sierra 3500HD

Denali Ultimate Crew Cab 4WD

33,672 km

$102,455

CarGurus partner

Year:: 2024
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 470 hp 6.6L V8 Biodiesel
Exterior colour:: Gray (Dark Grey)
Fuel type:: Biodiesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 33,672
Stock #:: 53924U
VIN:: 1GT49YEY6RF353924

2025 GMC Sierra 3500HD

AT4 Crew Cab 4WD

44,524 km

$96,976

CarGurus partner

Year:: 2025
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Exterior colour:: Thunderstorm Gray
Interior colour:: Jet Black with Kalahari accents
Transmission:: Automatic
Mileage:: 44,524
Stock #:: F7G7KC
VIN:: 1GT4UVEY0SF166925

2026 GMC Sierra 3500HD

Denali Crew Cab 4WD

16,462 km

$109,995

CarGurus partner

Year:: 2026
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 470 hp 6.6L V8 Biodiesel
Exterior colour:: Gray
Fuel type:: Biodiesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 16,462
Stock #:: SGD5392A
VIN:: 1GT4UWEY6TF105392

2024 GMC Sierra 3500HD

Denali Ultimate Crew Cab 4WD

67,567 km

$99,888

CarGurus partner

Year:: 2024
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 470 hp 6.6L V8 Biodiesel
Exterior colour:: Gray
Fuel type:: Biodiesel
Interior colour:: Brown (Tan)
Transmission:: Automatic
Mileage:: 67,567
Stock #:: SG166380B
VIN:: 1GT49YEY9RF232241

2015 GMC Sierra 3500HD

SLT Crew Cab 4WD

227,513 km

$44,995

CarGurus partner

Year:: 2015
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 397 hp 6.6L V8 Diesel
Exterior colour:: Gray
Fuel type:: Diesel
Interior colour:: Gray
Transmission:: Automatic
Mileage:: 227,513
Stock #:: T3150A
VIN:: 1GT423C86FF116744

2024 GMC Sierra 3500HD

SLE Crew Cab 4WD

19,714 km

$80,999

Year:: 2024
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 470 hp 6.6L V8 Biodiesel
Exterior colour:: Gray
Fuel type:: Biodiesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 19,714
Stock #:: 194960
VIN:: 1GT49TEY3RF395390

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2026 GMC Sierra 3500HD

AT4 Crew Cab 4WD

19,437 km

$110,456

CarGurus partner

Year:: 2026
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 470 hp 6.6L V8 Biodiesel
Exterior colour:: Gray
Fuel type:: Biodiesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 19,437
Stock #:: 161852A
VIN:: 1GT4UVEY9TF134038

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2024 GMC Sierra 3500HD

SLT Crew Cab 4WD

75,624 km

$77,900

CarGurus partner

Year:: 2024
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 470 hp 6.6L V8 Biodiesel
Exterior colour:: Gray
Fuel type:: Biodiesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 75,624
Stock #:: CG303706A
VIN:: 1GT49UEY3RF199634

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2026 GMC Sierra 3500HD

Denali Crew Cab 4WD

New car

$109,980

$1,741/mo est.

Sherwood Park, AB

1 km away

CarGurus partner

Year:: 2026
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 470 hp 6.6L V8 Biodiesel
Exterior colour:: Gray
Fuel type:: Biodiesel
Transmission:: Automatic
Mileage:: 15
Stock #:: 26T39808
VIN:: 1GT4UWEY9TF109808

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2026 GMC Sierra 3500HD

SLT Crew Cab 4WD

New car

$105,901

$1,677/mo est.

Dawson Creek, BC

1 km away

Year:: 2026
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Exterior colour:: Gray
Interior colour:: Black
Transmission:: Automatic
Mileage:: 27
Stock #:: 40T26-4501
VIN:: 1GT4UUEY6TF122875

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2026 GMC Sierra 3500HD

SLT Crew Cab 4WD

New car

$105,988

$1,678/mo est.

Fort McMurray, AB

1 km away

CarGurus partner

Year:: 2026
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 470 hp 6.6L V8 Biodiesel
Exterior colour:: Gray
Fuel type:: Biodiesel
Transmission:: Automatic
Mileage:: 6
Stock #:: FMZ122298
VIN:: 1GT4UUEY5TF122298

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2026 GMC Sierra 3500HD

SLT Crew Cab 4WD

New car

$104,918

$1,661/mo est.

Fort McMurray, AB

1 km away

CarGurus partner

Year:: 2026
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 470 hp 6.6L V8 Biodiesel
Exterior colour:: Gray
Fuel type:: Biodiesel
Transmission:: Automatic
Mileage:: 6
Stock #:: FM125040
VIN:: 1GT4UUEY3TF125040

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2026 GMC Sierra 3500HD

Denali Crew Cab 4WD

New car

$114,722

$1,816/mo est.

Dawson Creek, BC

1 km away

Year:: 2026
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Exterior colour:: Gray
Interior colour:: Black
Transmission:: Automatic
Mileage:: 27
Stock #:: 40T26-4561
VIN:: 1GT4UWEY0TF142681

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2026 GMC Sierra 3500HD

Denali Crew Cab 4WD

New car

$123,510

$1,955/mo est.

Prince Albert, SK

1 km away

CarGurus partner

Year:: 2026
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 470 hp 6.6L V8 Biodiesel
Exterior colour:: Gray
Fuel type:: Biodiesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 15
Stock #:: Q215
VIN:: 1GT4UWEY4TF145065

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2026 GMC Sierra 3500HD

Denali Crew Cab 4WD

New car

$118,686

$1,879/mo est.

Pitt Meadows, BC

1 km away

CarGurus partner

Year:: 2026
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 470 hp 6.6L V8 Biodiesel
Exterior colour:: Gray
Fuel type:: Biodiesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 5
Stock #:: GC149831
VIN:: 1GT4UWEY6TF149831

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2026 GMC Sierra 3500HD

AT4 Crew Cab 4WD

New car

$122,980

$1,947/mo est.

Sherwood Park, AB

1 km away

CarGurus partner

Year:: 2026
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 470 hp 6.6L V8 Biodiesel
Exterior colour:: Gray
Fuel type:: Biodiesel
Transmission:: Automatic
Mileage:: 57
Stock #:: LB-26T37664
VIN:: 1GT4UVEY0TF147664

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2026 GMC Sierra 3500HD

Denali Crew Cab 4WD

New car

$113,829

$1,802/mo est.

Dawson Creek, BC

1 km away

Year:: 2026
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Exterior colour:: Gray
Interior colour:: Black
Transmission:: Automatic
Mileage:: 17
Stock #:: 40T26-4583
VIN:: 1GT4UWEY1TF150613

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2026 GMC Sierra 3500HD

Denali Crew Cab 4WD

New car

$113,084

$1,790/mo est.

Grande Prairie, AB

1 km away

CarGurus partner

Year:: 2026
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 470 hp 6.6L V8 Biodiesel
Exterior colour:: Gray
Fuel type:: Biodiesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 27
Stock #:: G0234
VIN:: 1GT4UWEY0TF143815

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2026 GMC Sierra 3500HD

SLT Crew Cab 4WD

New car

$110,698

$1,753/mo est.

Wainwright, AB

1 km away

Year:: 2026
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 470 hp 6.6L V8 Biodiesel
Exterior colour:: Gray
Fuel type:: Biodiesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 0
Stock #:: 41773
VIN:: 1GT4UUEYXTF142711

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2026 GMC Sierra 3500HD

SLT Crew Cab 4WD

New car

$118,208

$1,872/mo est.

Williams Lake, BC

1 km away

Year:: 2026
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 470 hp 6.6L V8 Biodiesel
Exterior colour:: Gray
Fuel type:: Biodiesel
Interior colour:: Black
Transmission:: Automatic
Mileage:: 90
Stock #:: 26T075
VIN:: 1GT4UUEY7TF159546

Shop all gray cars in Colorado Used White GMC Sierra 3500HD for Sale in Colorado Used Blue GMC Sierra 3500HD for Sale in Colorado Used Red GMC Sierra 3500HD for Sale in Colorado Used Black GMC Sierra 3500HD for Sale in Colorado Used Silver GMC Sierra 3500HD for Sale in Colorado

Used GMC Sierra 3500HD for Sale with Tow Package in Colorado

Used Gray GMC Sierra 3500HD for Sale in Colorado

2024 GMC Sierra 3500HD

$79,995

2026 GMC Sierra 3500HD

$129,655

2020 GMC Sierra 3500HD

$48,900

2026 GMC Sierra 3500HD

$137,980

2024 GMC Sierra 3500HD

$102,455

2025 GMC Sierra 3500HD

$96,976

2026 GMC Sierra 3500HD

$109,995

2024 GMC Sierra 3500HD

$99,888

2015 GMC Sierra 3500HD

$44,995

2024 GMC Sierra 3500HD

$80,999

2026 GMC Sierra 3500HD

$110,456

2024 GMC Sierra 3500HD

$77,900

2026 GMC Sierra 3500HD

$109,980

2026 GMC Sierra 3500HD

$105,901

2026 GMC Sierra 3500HD

$105,988

2026 GMC Sierra 3500HD

$104,918

2026 GMC Sierra 3500HD

$114,722

2026 GMC Sierra 3500HD

$123,510

2026 GMC Sierra 3500HD

$118,686

2026 GMC Sierra 3500HD

$122,980

2026 GMC Sierra 3500HD

$113,829

2026 GMC Sierra 3500HD

$113,084

2026 GMC Sierra 3500HD

$110,698

2026 GMC Sierra 3500HD

$118,208

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