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

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185 vehicles found

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:
Onyx Black
Fuel type:
Biodiesel
Interior color:
Jet Black
Transmission:
10-Speed Automatic
Mileage:
28,710
Stock #:
KM124311
VIN:
1GT4UVEY8SF124311
Onyx Black 2025 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive 10-Speed Automatic
ClearShift

Sponsored by ClearShift

2025 GMC Sierra 3500HD

AT4 Crew Cab 4WD

28,710 mi

Highlands Ranch, CO
67 mi away
Fair Deal

$74,230

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
Summit White 2025 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive 10-Speed Automatic

Sponsored Listing

2025 GMC Sierra 3500HD

SLT Crew Cab 4WD

34,300 mi

Highlands Ranch, CO
67 mi away
Good Deal

$65,544

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:
8,184
Stock #:
SF262974C
VIN:
1GT4UWEY3SF262974
Sterling Metallic 2025 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive Automatic

Sponsored Listing

2025 GMC Sierra 3500HD

Denali Crew Cab 4WD

8,184 mi

Castle Rock, CO
81 mi away
Fair Deal
Manufacturer certified

$77,797

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:
Onyx Black
Fuel type:
Biodiesel
Interior color:
Jet Black
Transmission:
10-Speed Automatic
Mileage:
38,566
Stock #:
KM185845
VIN:
1GT4UWEY1SF185845
Onyx Black 2025 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive 10-Speed Automatic
New arrival

 

2025 GMC Sierra 3500HD

Denali Crew Cab LB DRW 4WD

38,566 mi

Highlands Ranch, CO
67 mi away
Fair Deal

$75,726

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:
Onyx Black
Fuel type:
Biodiesel
Interior color:
Jet Black
Transmission:
10-Speed Automatic
Mileage:
28,710
Stock #:
KM124311
VIN:
1GT4UVEY8SF124311
Onyx Black 2025 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive 10-Speed Automatic

 

2025 GMC Sierra 3500HD

AT4 Crew Cab 4WD

28,710 mi

Highlands Ranch, CO
67 mi away
Fair Deal

$74,230

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:
Onyx Black
Fuel type:
Biodiesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
6,520
Stock #:
SF347201C
VIN:
1GT4UWEY1SF347201
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2025 GMC Sierra 3500HD

Denali Crew Cab 4WD

6,520 mi

Wheat Ridge, CO
52 mi away
Fair Deal

$78,798

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:
Automatic
Mileage:
20,789
Stock #:
KM142525
VIN:
1GT4UTE72SF142525
Thunderstorm Gray 2025 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive Automatic

 

2025 GMC Sierra 3500HD

SLE Crew Cab 4WD

20,789 mi

Highlands Ranch, CO
67 mi away
Fair Deal

$57,740

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 color:
Onyx Black
Fuel type:
Biodiesel
Interior color:
Black
Transmission:
Automatic
Mileage:
15,050
Stock #:
21702
VIN:
1GT4UTEY5TF143243
Onyx Black 2026 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 3500HD

SLE Crew Cab 4WD

15,050 mi

Greeley, CO
15 mi away
Fair Deal

$69,387

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:
8,184
Stock #:
SF262974C
VIN:
1GT4UWEY3SF262974
Sterling Metallic 2025 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive Automatic

 

2025 GMC Sierra 3500HD

Denali Crew Cab 4WD

8,184 mi

Castle Rock, CO
81 mi away
Fair Deal
Manufacturer certified

$77,797

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
Summit White 2025 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive 10-Speed Automatic

 

2025 GMC Sierra 3500HD

SLT Crew Cab 4WD

34,300 mi

Highlands Ranch, CO
67 mi away
Good Deal

$65,544

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:
Onyx Black
Fuel type:
Biodiesel
Interior color:
Alpine Umber
Transmission:
Automatic
Mileage:
16,680
Stock #:
5P322173
VIN:
1GT4UYEY2SF322173
Onyx Black 2025 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive Automatic

 

2025 GMC Sierra 3500HD

Denali Ultimate Crew Cab 4WD

16,680 mi

Home delivery from Evanston, WY
Price includes $448 shipping
Good Deal

$84,942

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:
Onyx Black
Fuel type:
Biodiesel
Interior color:
Atmosphere/Brownstone
Transmission:
Automatic
Mileage:
26,174
Stock #:
C26178A
VIN:
1GT4UWEY6SF244100
Onyx Black 2025 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive Automatic

 

2025 GMC Sierra 3500HD

Denali Crew Cab 4WD

26,174 mi

Home delivery from Gillette, WY
Price includes $351 shipping
Fair Deal
Manufacturer certified

$79,145

CarGurus Analysis:

2026 GMC Sierra 3500HD

  • With 538 currently listed for sale and an average price of $87,697.00, 31.6% of 2026 GMC Sierra 3500HDs for sale on CarGurus are rated as good or great deals.

  • 97.2% of 2026 Sierra 3500HD models on CarGurus are accident free.

  • The 2026 GMC Sierra 3500HD offers impressive hauling and towing capabilities, making it a strong choice for heavy-duty needs.

Research summarized using AI

 

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
Fuel type:
Biodiesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
6,917
Stock #:
14895X
VIN:
1GT4UWEY1SF296007
White 2025 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive Automatic

 

2025 GMC Sierra 3500HD

Denali Crew Cab 4WD

6,917 mi

Home delivery from Lehi, UT
Price includes $363 shipping
Fair Deal

$79,696

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 With Kalahari Accents
Transmission:
Automatic
Mileage:
18,000
Stock #:
I1638
VIN:
1GT4UVEY6SF185205
Summit White 2025 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive Automatic

 

2025 GMC Sierra 3500HD

AT4 Crew Cab 4WD

18,000 mi

Home delivery from West Jordan, UT
Price includes $367 shipping
Good Deal

$77,160

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:
Alpine Umber
Transmission:
Automatic
Mileage:
22,033
Stock #:
10420
VIN:
1GT4UYEY0SF125101
Sterling Metallic 2025 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive Automatic

 

2025 GMC Sierra 3500HD

Denali Ultimate Crew Cab 4WD

22,033 mi

Home delivery from Walnut Creek, CA
Price includes $930 shipping
Fair Deal

$85,015

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:
Automatic
Mileage:
12,614
Stock #:
6512
VIN:
1GT4UTEYXSF235236
Summit White 2025 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive Automatic

 

2025 GMC Sierra 3500HD

SLE Crew Cab 4WD

12,614 mi

Home delivery from Heber City, UT
Price includes $1,670 shipping
Fair Deal

$65,665

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
Fuel type:
Biodiesel
Interior color:
Alpine Umber
Transmission:
Automatic
Mileage:
22,680
Stock #:
14901X
VIN:
1GT4UYEY7SF148245
White 2025 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive Automatic

 

2025 GMC Sierra 3500HD

Denali Ultimate Crew Cab 4WD

22,680 mi

Home delivery from Lehi, UT
Price includes $363 shipping
Fair Deal

$85,079

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:
Titanium
Fuel type:
Biodiesel
Interior color:
Jet Black
Transmission:
Automatic
Mileage:
13,391
Stock #:
14864
VIN:
1GT4UUEY1SF170573
Titanium 2025 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive Automatic

 

2025 GMC Sierra 3500HD

SLT Crew Cab 4WD

13,391 mi

Home delivery from Lehi, UT
Price includes $363 shipping
Good Deal

$69,872

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:
Automatic
Mileage:
6,661
Stock #:
13672
VIN:
1GT4UWE79SF284114
Sterling Metallic 2025 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive Automatic

 

2025 GMC Sierra 3500HD

Denali Crew Cab 4WD

6,661 mi

Home delivery from Nashville, TN
Price includes $2,060 shipping
Fair Deal

$76,837

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 color:
Summit White
Fuel type:
Biodiesel
Interior color:
Jet Black w/Kalahari Accents
Transmission:
Automatic
Mileage:
10,779
Stock #:
6486
VIN:
1GT4UVEY5TF114112
Summit White 2026 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive Automatic

 

2026 GMC Sierra 3500HD

AT4 Crew Cab 4WD

10,779 mi

Home delivery from Heber City, UT
Price includes $1,670 shipping
Fair Deal

$83,665

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:
Alpine Umber
Transmission:
Automatic
Mileage:
20,955
Stock #:
10088
VIN:
1GT4UYEY2SF251377
Sterling Metallic 2025 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive Automatic

 

2025 GMC Sierra 3500HD

Denali Ultimate Crew Cab 4WD

20,955 mi

Home delivery from Johnson Creek, WI
Free home delivery
Fair Deal

$85,478

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:
Automatic
Mileage:
20,789
Stock #:
KM142525
VIN:
1GT4UTE72SF142525
Thunderstorm Gray 2025 GMC Sierra 3500HD Pickup Truck Four-Wheel Drive Automatic

Sponsored Listing

2025 GMC Sierra 3500HD

SLE Crew Cab 4WD

20,789 mi

Highlands Ranch, CO
67 mi away
Fair Deal

$57,740

CarGurus Analysis: 2026 GMC Sierra 3500HD

Image Not Available

Summary

  • With 538 currently listed for sale and an average price of $87,697.00, 31.6% of 2026 GMC Sierra 3500HDs for sale on CarGurus are rated as good or great deals.

  • 97.2% of 2026 Sierra 3500HD models on CarGurus are accident free.

  • The 2026 GMC Sierra 3500HD offers impressive hauling and towing capabilities, making it a strong choice for heavy-duty needs.

Why it stands out

The 2026 GMC Sierra 3500HD excels in the heavy-duty truck segment by delivering a blend of robust performance and upscale features. With historically strong towing capabilities—up to 35,500 pounds when equipped with the right configuration and diesel engine—this truck is designed for serious work. It boasts luxurious appointments, particularly in higher trims like the Denali, offering premium leather, advanced technology, and innovative features meant for both work and leisure. With improvements in towing capacity and technology advancements over the years, the Sierra 3500HD remains a sophisticated choice amidst competition from Ford and Ram heavy-duty trucks. Additionally, with 97.2% of listings being accident-free, it stands out for its reliability, making it an appealing investment for buyers keen on a durable workhorse.

Other model years to consider

  • 2024 GMC Sierra 3500HD

    • Average price: $69,376.00
    • Good/great deal percentage: 33.1%
    • User rating: 5 / 5
    • Total listings: 1,364
  • 2023 GMC Sierra 3500HD

    • Average price: $57,715.00
    • Good/great deal percentage: 33.4%
    • Total listings: 1,271
  • 2025 GMC Sierra 3500HD

    • Average price: $77,466.00
    • Good/great deal percentage: 32.1%
    • User rating: 5 / 5
    • Total listings: 1,249

This analysis is based on CarGurus' proprietary market data from June 29, 2026, CarGurus experts' opinions, and generative AI.

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