Skip to FiltersReport abuse
23 listings
- $85,175MSRP $86,175
- Exterior color: Onyx BlackOnyx Black
- Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
- 6'10” bed, 6.6l, 8cyl
- Turner Automotive (185 mi away)(2)
Close
Located in Montrose, CO / 185 miles away from Thornton, CO
Onyx Black 2025 GMC Sierra 3500HD AT4 4WD 10-Speed Automatic Duramax 6.6L V8 TurbodieselTax, title and license fees are extra. Not all incentive pr...
Features and Specs:
Listing Information:
VIN: 1GT4UVEY4SF320682
Stock: S10095
Listed since: 06-03-2025 - $85,175MSRP $86,175
- Exterior color: Sterling MetallicSterling Metallic
- Interior color: Jet Black w/Kalahari Accents leatherJet Black w/Kalahari Accents leather
- 6'10” bed, 6.6l, 8cyl
- Turner Automotive (185 mi away)(2)
Close
Located in Montrose, CO / 185 miles away from Thornton, CO
Sterling Metallic 2025 GMC Sierra 3500HD AT4 4WD 10-Speed Automatic Duramax 6.6L V8 TurbodieselTax, title and license fees are extra. Not all incen...
Features and Specs:
Listing Information:
VIN: 1GT4UVEY8SF323570
Stock: S10092
Listed since: 06-03-2025
Showing 22 - 23 out of 23 listings
Consumer Reviews for the GMC Sierra 3500HD
Read recent reviews for the GMC Sierra 3500HD
WHAT A TRUCK
Bill S., 04/05/2020
2020 GMC Sierra 3500HD Denali 4dr Crew Cab 4WD SB (6.6L 8cyl 6A)
I purchased this Denali two weeks ago. I absolutely love this truck. The ride is so smooth and power band is incredible. What a huge difference between my 2008 GMC 2500HD Duramax, its like night and day... I love all the high tech features with the 2020's from the cameras to the front and rear LED lighting. Oh yea forgot about that first of its kind tailgate. Now that's a very … useful tailgate, I can see Ford, Dodge and Chevrolet using the same basic tailgate in the near future.
I really cant wait to haul my 5th wheel with this truck. Once I make that first trip I will update this review regarding the towing...
A big thank you for Thompsons GMC in Placerville, CA for such a great purchasing experience.
It’s been about a year since I purchased my GMC 3500 Denali and wanted to update my review.
I still love this truck so much. I’ve towed my 5th wheel RV approximately 8000K miles. This truck tows my 5th wheel like a dream. The cooling system is definitely a 100% improvement over my 2008 while towing in the warmer weather.
About the only thing I’d like to see is GM add more information to the heads up display (HUD) like your blind spot indicators.
I’m glad we bought when we did because I hear that dealers are having a tough time receiving new trucks.
Bottom line is this, I’d buy this truck all over again absolutely No Regrets!!!!
| Trim | MPG | Engine | Starting Price |
|---|---|---|---|
| 2025 GMC Sierra 3500HD AT4 4dr Crew Cab 4WD SB (6.6L 8cyl Turbodiesel 10A) | N/A | 8-cylinders (diesel) | $86,175 |
More about the GMC Sierra 3500HD
Edmunds has 23 New GMC Sierra 3500HDs for sale near you, including a 2025 Sierra 3500HD AT4 Pickup and a 2025 Sierra 3500HD AT4 Pickup ranging in price from $86,175 to $86,175.
How much is a new 2025 GMC Sierra 3500HD in Thornton, CO?
- A new 2025 GMC Sierra 3500HD starts at $86,175 (including destination charge) in Thornton, CO. Prices will go up based on the trim level you choose and any options you add. Keep in mind that prices can also vary from one state to another and even from one dealership to the next.
How much does a 2025 GMC Sierra 3500HD Crew Cab cost in Thornton, CO?
- A new 2025 GMC Sierra 3500HD Crew Cab starts at $86,175 in Thornton, CO. Prices will vary depending on what trim level you choose. Each state may have different pricing, so make sure you enter your correct ZIP code on Edmunds.
Filters
Skip to Results