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New & Used 2026 GMC Sierra 3500HD for Sale near Longmont, CO

168 results
Longmont, CO
2025 GMC Sierra 3500HD Denali Crew Cab 4WD Alpine Buick GMC

2025 GMC Sierra 3500HD

Denali Crew Cab 4WD

9,232 miles

$79,017

Fair Deal
Highlands Ranch, CO
42 mi away
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, Forge Perforated Leather Seating Surfac
Transmission:
Automatic
Mileage:
9,232
Stock number:
ASF203210
VIN:
1GT4UWEY6SF203210

Sponsored

2025 GMC Sierra 3500HD Denali Crew Cab 4WD

2025 GMC Sierra 3500HD

Denali Crew Cab 4WD

17,245 miles

$78,991

Fair Deal
Highlands Ranch, CO
42 mi away
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:
White Frost Tricoat
Fuel type:
Biodiesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
17,245
Stock number:
KM124630
VIN:
1GT4UWEY5SF124630

Sponsored

2025 GMC Sierra 3500HD AT4 Crew Cab 4WD

2025 GMC Sierra 3500HD

AT4 Crew Cab 4WD

8,587 miles

$76,037

Good Deal
Broomfield, CO
18 mi away
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:
Volcanic Red Tintcoat
Fuel type:
Biodiesel
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
8,587
Stock number:
TB260018A
VIN:
1GT4UVEYXSF193694

Sponsored

2025 GMC Sierra 3500HD AT4 Crew Cab 4WD

2025 GMC Sierra 3500HD

AT4 Crew Cab 4WD

21,002 miles

$77,995

Fair Deal
Frederick, CO
7 mi away
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 with Kalahari accents
Transmission:
Automatic
Mileage:
21,002
Stock number:
A21545
VIN:
1GT4UVEY2SF111134

Preparing for a close up...

Photos coming soon

2025 GMC Sierra 3500HD

Denali Ultimate Crew Cab 4WD

12,387 miles

$85,091

Fair Deal
Highlands Ranch, CO
42 mi away
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:
White Frost Tricoat
Fuel type:
Biodiesel
Interior color:
Alpine Umber, Full Grain Leather Seating Surfaces
Transmission:
Automatic
Mileage:
12,387
Stock number:
ASF184355
VIN:
1GT4UYEY7SF184355

Preparing for a close up...

Photos coming soon

2025 GMC Sierra 3500HD

Denali Crew Cab 4WD

17,245 miles

$78,991

Fair Deal
Highlands Ranch, CO
42 mi away
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:
White Frost Tricoat
Fuel type:
Biodiesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
17,245
Stock number:
KM124630
VIN:
1GT4UWEY5SF124630

Preparing for a close up...

Photos coming soon

2025 GMC Sierra 3500HD

AT4 Crew Cab 4WD

8,587 miles

$76,037

Good Deal
Broomfield, CO
18 mi away
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:
Volcanic Red Tintcoat
Fuel type:
Biodiesel
Interior color:
Jet Black With Kalahari Accents
Transmission:
Automatic
Mileage:
8,587
Stock number:
TB260018A
VIN:
1GT4UVEYXSF193694

Preparing for a close up...

Photos coming soon

2025 GMC Sierra 3500HD

Denali Crew Cab 4WD

9,232 miles

$79,017

Fair Deal
Highlands Ranch, CO
42 mi away
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, Forge Perforated Leather Seating Surfac
Transmission:
Automatic
Mileage:
9,232
Stock number:
ASF203210
VIN:
1GT4UWEY6SF203210

Preparing for a close up...

Photos coming soon

2026 GMC Sierra 3500HD

New car | MSRP $85,285

$78,896

Loveland, CO
19 mi away
Year:
2026
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:
Black
Transmission:
Automatic
Mileage:
3
Stock number:
TF117156
VIN:
1GT4UWE70TF117156

Preparing for a close up...

Photos coming soon

2025 GMC Sierra 3500HD

New car | MSRP $93,400

$85,321

Brighton, CO
21 mi away
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:
25
Stock number:
G563530
VIN:
1GT4UWEY1SF363530

Preparing for a close up...

Photos coming soon

2025 GMC Sierra 3500HD

New car | MSRP $65,370

$57,999

Golden, CO
31 mi away
Year:
2025
Make:
GMC
Model:
Sierra 3500HD
Body type:
Pickup Truck
Doors:
2 doors
Drivetrain:
Four-Wheel Drive
Exterior color:
Summit White
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
15
Stock number:
SF285032
VIN:
1GT3USEY5SF285032

Preparing for a close up...

Photos coming soon

2025 GMC Sierra 3500HD

New car | MSRP $91,745

$83,836

Brighton, CO
21 mi away
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:
Black
Transmission:
Automatic
Mileage:
10
Stock number:
G5371892
VIN:
1GT4UWEY9SF371892

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  2. / Used Cars
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  4. / 2026
  5. / Colorado
  6. / Longmont
FAQs

2026 GMC Sierra 3500HD FAQs

How many 2026 GMC Sierra 3500HD vehicles in Longmont, CO have no reported accidents or damage?

33 out of 33 for sale near Longmont, CO have no reported accidents or damage.

What fuel types are available?

Biodiesel, Gasoline engines are available.

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