Used GMC Sierra 3500HD SLT for Sale near Colorado

56 results

Sort by:

2025 GMC Sierra 3500HD

SLT Crew Cab 4WD

16,375 miles

$64,405

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:: Sterling Metallic
Fuel type:: Gasoline
Interior color:: Jet Black
Transmission:: 10-Speed Automatic
Mileage:: 16,375
Stock #:: KM270919
VIN:: 1GT4UUE78SF270919

2024 GMC Sierra 3500HD

SLT Crew Cab 4WD

59,608 miles

$62,099

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 color:: Titanium Rush Metallic
Fuel type:: Biodiesel
Interior color:: Dark Walnut/Slate
Transmission:: Automatic
Mileage:: 59,608
Stock #:: RF133352T
VIN:: 1GT49UEY4RF133352

2018 GMC Sierra 3500HD

SLT Crew Cab 4WD

130,010 miles

$41,700

Year:: 2018
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 6.6L V8 Biodiesel
Exterior color:: White
Fuel type:: Biodiesel
Interior color:: Black
Transmission:: 6-Speed Automatic Overdrive
Mileage:: 130,010
Stock #:: 11805
VIN:: 1GT42XCYXJF275640

2025 GMC Sierra 3500HD

SLT Crew Cab 4WD

16,375 miles

$64,405

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:: Sterling Metallic
Fuel type:: Gasoline
Interior color:: Jet Black
Transmission:: 10-Speed Automatic
Mileage:: 16,375
Stock #:: KM270919
VIN:: 1GT4UUE78SF270919

2024 GMC Sierra 3500HD

SLT Crew Cab 4WD

50,937 miles

$62,997

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 color:: Summit White
Fuel type:: Biodiesel
Interior color:: Black
Transmission:: Automatic
Mileage:: 50,937
Stock #:: 8047GS
VIN:: 1GT49UEY1RF321651

2024 GMC Sierra 3500HD

SLT Crew Cab 4WD

18,005 miles

$67,988

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 color:: Onyx Black
Fuel type:: Biodiesel
Interior color:: Jet Black
Transmission:: 10-Speed Automatic
Mileage:: 18,005
Stock #:: JV196718
VIN:: 1GT49UEY5RF196718

Home delivery

2020 GMC Sierra 3500HD

SLT Crew Cab 4WD

68,661 miles

$54,040

Fair Deal

$1,057/mo est.

Home delivery from Fort Collins, CO

Price includes $54 shipping

Year:: 2020
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 6.6L V8 Biodiesel
Exterior color:: Summit White
Fuel type:: Biodiesel
Interior color:: Dark Walnut/Slate
Transmission:: Automatic
Mileage:: 68,661
Stock #:: J10757
VIN:: 1GT49UEY3LF146407

2024 GMC Sierra 3500HD

SLT Crew Cab 4WD

59,608 miles

$62,099

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 color:: Titanium Rush Metallic
Fuel type:: Biodiesel
Interior color:: Dark Walnut/Slate
Transmission:: Automatic
Mileage:: 59,608
Stock #:: RF133352T
VIN:: 1GT49UEY4RF133352

Home delivery

2019 GMC Sierra 3500HD

SLT Crew Cab 4WD

188,414 miles

$29,442

Fair Deal

$576/mo est.

Home delivery from Houston, TX

Price includes $1,310 shipping

Year:: 2019
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 6.6L V8 Biodiesel
Exterior color:: White
Fuel type:: Biodiesel
Transmission:: Automatic
Mileage:: 188,414
Stock #:: 262517
VIN:: 1GT42VEY8KF262517

Home delivery

2025 GMC Sierra 3500HD

SLT Crew Cab 4WD

13,216 miles

$63,826

Great Deal

$1,196/mo est.

Manufacturer certified

Home delivery from West Plains, MO

Price includes $1,855 shipping

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:: Summit White
Fuel type:: Gasoline
Interior color:: Dark Walnut/Slate, Perforated Leather-appointed fr
Transmission:: Automatic
Mileage:: 13,216
Stock #:: 26477A
VIN:: 1GT4UUE72SF349731

Preparing for a close up...

Photos coming soon

Home delivery

2025 GMC Sierra 3500HD

SLT Crew Cab 4WD

13,659 miles

$67,241

Good Deal

$1,260/mo est.

Home delivery from Price, UT

Price includes $246 shipping

Year:: 2025
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 470 hp 6.6L V8 Biodiesel
Exterior color:: Sterling Metallic
Fuel type:: Biodiesel
Interior color:: Jet Black
Transmission:: Automatic
Mileage:: 13,659
Stock #:: 7704
VIN:: 1GT4UUEY7SF321075

Preparing for a close up...

Photos coming soon

Home delivery

2024 GMC Sierra 3500HD

SLT Crew Cab 4WD

21,762 miles

$69,608

Fair Deal

$1,314/mo est.

Home delivery from Fond du Lac, WI

Price includes $1,611 shipping

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 color:: Onyx Black
Fuel type:: Biodiesel
Interior color:: Black
Transmission:: Automatic
Mileage:: 21,762
Stock #:: YB35286
VIN:: 1GT49UEYXRF259490

Preparing for a close up...

Photos coming soon

Home delivery

2019 GMC Sierra 3500HD

SLT Crew Cab 4WD

133,662 miles

$40,649

Fair Deal

$795/mo est.

Home delivery from West Jordan, UT

Price includes $754 shipping

Year:: 2019
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 6.6L V8 Biodiesel
Exterior color:: White Frost Tricoat
Fuel type:: Biodiesel
Interior color:: Cocoa/Dune
Transmission:: 6-Speed Automatic
Mileage:: 133,662
Stock #:: T20838
VIN:: 1GT42VEY1KF149606

Preparing for a close up...

Photos coming soon

Home delivery

2018 GMC Sierra 3500HD

SLT Crew Cab 4WD

153,735 miles

$37,806

Fair Deal

$740/mo est.

Home delivery from Post Falls, ID

Price includes $811 shipping

Year:: 2018
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 6.6L V8 Biodiesel
Exterior color:: Red
Fuel type:: Biodiesel
Interior color:: Black
Transmission:: 6-Speed Automatic Overdrive
Mileage:: 153,735
Stock #:: L2605
VIN:: 1GT42XEY8JF133588

Preparing for a close up...

Photos coming soon

Home delivery

2024 GMC Sierra 3500HD

SLT Crew Cab 4WD

27,557 miles

$65,626

Fair Deal

$1,239/mo est.

Home delivery from Houston, TX

Price includes $876 shipping

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 color:: Onyx Black
Fuel type:: Biodiesel
Interior color:: Jet Black
Transmission:: Automatic
Mileage:: 27,557
Stock #:: 406813
VIN:: 1GT49UEYXRF406813

Preparing for a close up...

Photos coming soon

Home delivery

2024 GMC Sierra 3500HD

SLT Crew Cab 4WD

91,957 miles

$57,978

Good Deal

$1,094/mo est.

Home delivery from Logan, UT

Price includes $479 shipping

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 color:: Summit White
Fuel type:: Biodiesel
Interior color:: Black
Transmission:: Automatic
Mileage:: 91,957
Stock #:: L226248
VIN:: 1GT49UEY3RF226248

Preparing for a close up...

Photos coming soon

2023 GMC Sierra 3500HD

SLT Crew Cab 4WD

66,714 miles

$56,664

Year:: 2023
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 6.6L V8 Biodiesel
Exterior color:: Summit White
Fuel type:: Biodiesel
Interior color:: Jet Black
Transmission:: Automatic
Mileage:: 66,714
Stock #:: PF136546
VIN:: 1GT49UEY3PF136546

Preparing for a close up...

Photos coming soon

Home delivery

2018 GMC Sierra 3500HD

SLT Crew Cab 4WD

103,679 miles

$41,554

Fair Deal

$813/mo est.

Home delivery from Tulsa, OK

Price includes $1,112 shipping

Year:: 2018
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 6.6L V8 Biodiesel
Exterior color:: Summit White
Fuel type:: Biodiesel
Interior color:: Cocoa/Dune
Transmission:: 6-Speed Automatic
Mileage:: 103,679
Stock #:: TTM1265
VIN:: 1GT42XEY1JF125428

Preparing for a close up...

Photos coming soon

2025 GMC Sierra 3500HD

SLT Crew Cab 4WD

34,300 miles

$65,989

Year:: 2025
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 470 hp 6.6L V8 Biodiesel
Exterior color:: Summit White
Fuel type:: Biodiesel
Interior color:: Jet Black
Transmission:: 10-Speed Automatic
Mileage:: 34,300
Stock #:: JV133450
VIN:: 1GT4UUEY9SF133450

Preparing for a close up...

Photos coming soon

Home delivery

2023 GMC Sierra 3500HD

SLT Crew Cab LB DRW 4WD

47,705 miles

$61,198

Fair Deal

$1,165/mo est.

Home delivery from Herculaneum, MO

Price includes $1,580 shipping

Year:: 2023
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 6.6L V8 Biodiesel
Exterior color:: Cardinal Red
Fuel type:: Biodiesel
Interior color:: Jet Black
Transmission:: 10-Speed Automatic
Mileage:: 47,705
Stock #:: R87493
VIN:: 1GT49UEY3PF167229

Preparing for a close up...

Photos coming soon

Home delivery

2024 GMC Sierra 3500HD

SLT Crew Cab 4WD

56,177 miles

$64,478

Fair Deal

$1,217/mo est.

Home delivery from Logan, UT

Price includes $479 shipping

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 color:: White
Fuel type:: Biodiesel
Interior color:: Jet Black
Transmission:: Automatic
Mileage:: 56,177
Stock #:: L358928
VIN:: 1GT49UEY5RF358928

Preparing for a close up...

Photos coming soon

Home delivery

2025 GMC Sierra 3500HD

SLT Crew Cab 4WD

21,437 miles

$67,273

Good Deal

$1,260/mo est.

Home delivery from Grand Junction, CO

Price includes $274 shipping

Year:: 2025
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 470 hp 6.6L V8 Biodiesel
Exterior color:: Sterling Metallic
Fuel type:: Biodiesel
Interior color:: Black
Transmission:: Automatic
Mileage:: 21,437
Stock #:: 8123
VIN:: 1GT4UUEY6SF102236

Preparing for a close up...

Photos coming soon

Home delivery

2014 GMC Sierra 3500HD

SLT Crew Cab 4WD

89,628 miles

$37,994

Fair Deal

$743/mo est.

Home delivery from Boone, IA

Price includes $1,204 shipping

Year:: 2014
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 397 hp 6.6L V8 Diesel
Exterior color:: Summit White
Fuel type:: Diesel
Interior color:: Black (Ebony)
Transmission:: 6-Speed Automatic
Mileage:: 89,628
Stock #:: 18570P
VIN:: 1GT424E83EF151467

Preparing for a close up...

Photos coming soon

2023 GMC Sierra 3500HD

SLT Crew Cab 4WD

66,714 miles

$56,664

Year:: 2023
Make:: GMC
Model:: Sierra 3500HD
Body type:: Pickup Truck
Doors:: 4 doors
Drivetrain:: Four-Wheel Drive
Engine:: 6.6L V8 Biodiesel
Exterior color:: Summit White
Fuel type:: Biodiesel
Interior color:: Jet Black
Transmission:: Automatic
Mileage:: 66,714
Stock #:: PF136546
VIN:: 1GT49UEY3PF136546

A better way to discover your best deal

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