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Used
GMC Sierra 2500 trucks
for sale
near
Niwot, CO
under $899,990
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
Used
2003 GMC Sierra 2500 SLE H/D Extended Cab
Used
2025 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Monty was an absolute pleasure to work with!
Monty was an absolute pleasure to work with! He was professional, welcoming, and incredibly knowledgeable about his inventory. He took the time to answer all of my questions and taught me a great deal about the Jeep Wrangler 4xe. I would highly recommend him to anyone!
So far so good!
So far so good! This truck is the nicest truck I have ever driven. The stance, ride comfort and options are top notch. I went from a 2023 High Country that was having drive train issues but had all the creature comforts that you would expect in a top of the line truck. With the lack of confidence in that particular models 10 speed transmission issues, it became necessary to reestablish my confidence in my General Motors product.
Used
2020 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
Excellent and quick, Mark made the process super easy and
Excellent and quick, Mark made the process super easy and simple. Highly recommended. Facility is great, clean and they have lots of inventory. I have purchased many fleet trucks here.
2020 GMC 2500 AT4
This truck is the truck that all others should look up to. It rides great, will tow a house, runs smooth, and gets great fuel economy. The Allison transmission is so smooth. The AT4 looks great too.
Used
2020 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Great service
They fixed what was needed and did not “find” extra. They also took extra time to look into a noise I heard. Great service. Will return.
Best truck I've owned yet
What a gorgeous truck, runs good, sounds good and has all of the amenities I need although I am looking forward to their next interior upgrade.
Used
2024 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
Terrell Bryan our sales representative was helpful,
Terrell Bryan our sales representative was helpful, informative and kept us up-to-date on all aspects of the sale. Exceptional person to work with.
Best truck I have owned
I've owned every other American truck and this is my first GMC. I bought the 2500 HD Texas Edition. I absolutely love this truck. It's everything I could have hoped for and more. It is able to pull my 30' travel trailer with no problems. So now when we go out with our trailer I'll have no worries. The look and feel of the truck is outstanding. The 6.6L gas engine actually gets great gas mileage. It gets about the same as my Ford f150 ecoboost. Probably better on the highway. Looking at about 13 miles in the city and 15 plus on the highway. Definitely got a better truck for the price compared to any other american models with the same characteristic and options.
Used
2019 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Tony was very friendly.
Tony was very friendly. Went above and beyond to communicate with me. He even answered the phone after hours when I first called him. Thanks Rod
2019 GMC 2500 Denali Excellent Condition
Wonderful truck. Has had zero problems. I am trading for a new one. Truck is all original with no modifications. Truck is in excellent condition.
Used
2020 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
We saw the car online a couple days before we could get
We saw the car online a couple days before we could get over for a test drive. We scheduled the drive and the car was ready when we got there. We moved forward with the purchase and were pretty quickly out the door. The car was extremely clean for a 7 year old car, and all the vehicles on the lot looked clean. Friendly sales and finance staff.
Most convenient options on any vehicle I've owned.
Great power and yet great economy. Love the safety features with the cameras and side vehicle warning. Camera that shows side of vehicle, including trailer when turn signal is on is great. Also appreciate the bed camera for hooking up gooseneck trailer.
Used
2024 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
I dealt personally w Manny Rodriguez.
I dealt personally w Manny Rodriguez. He was intelligent, knowledgeable, honest and transparent. I applaud MM Chevy for hiring such an inspiring young man. Would go back again in a heartbeat!! I purchased a nice Silverado due to Mannys professionalism! Phil Bravo
Used
2024 GMC Sierra 2500 Denali Ultimate
Vehicle information
Features
Reviews
Customer service was great service department was great
Customer service was great service department was great the only complaint that I have is when I have an appointment for 1:30 and it is two and a half hours later when they get finished do not understand why it takes that long when you have an appointment
Used
2025 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
friendly, no pressure experience
Great car buying experience. Friendly, knowledgeable, no pressure salesman Kyle Berry. One minor problem was handled quickly and professionally with no hassle. Go see Kyle.
Used
2021 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Very good experience made the process easy left with a
Very good experience made the process easy left with a new car all the workers are great!
Beautiful truck
I love my 2021 GMC Denali 2500HD. I have gotten more complements on this truck than any other vehicle that I have owned. I get great highway fuel milage average 19-26mpg,which is great for a heavy duty truck!
Used
2022 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
Seamless experience
Amazing experience .super patient and no hassle team, completely transparent Charles and Rick took good care of us! I would go back there again with my next purchase
Great Truck
I paid over $106,000 for this truck with warranty. Do not care much about miles per gal. at that that price range. Just too much truck for me at my age.
Used
2023 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
We recently purchased a 2023 F-350 from Erin in Loveland.
We recently purchased a 2023 F-350 from Erin in Loveland. We live in Evergreen [approx 75 miles away], Erin had our deal and all docs ready for us to sign. Felt very comfortable with ClearShift and would definitely recommend to friends and family! Worth the drive for sure!
Used
2024 GMC Sierra 2500 AT4
Vehicle information
Features
Used
2021 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Best truck I ever owned
Love my GMC. Owned a Chevy and this absolutely beats it hands down. Never had any issues. Inside is very comfortable and can't imagine driving anything else
Used
2024 GMC Sierra 2500 Denali Ultimate
Vehicle information
Features
Reviews
All Around Excellent!
Best dealership in town. Second vehicle purchased with no hustle and easy precise transaction. From visit to post sale follow up, excellent. Great selection of vehicles, and cool place to see some unique rides.
Used
2018 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
Greatsuv
Had a great experience buying a used car .. they let me take my time in deciding and were very patient They were easy to work with and a very friendly staff...
A Beast when it comes to hauling!
I love how the truck pulls and rides when towing. It will give any driver the confidence to tow anywhere. I haven't had a single issue with it. I love the way it looks and couldn't be happier.
Vehicle information
Features
Reviews
A dealer like no other!
I usually dont write reviews but my experience with Truck Kings deserves one. Erase any idea you may have of a used car dealer and its inventory and replace it with satisfaction, enjoyment, zero frustration and a buying experience like no other. I had found Truck Kings from an ad online for a vehicle and went there to take a look at it. As it turns out they had 3 trucks that I was interested in. All 3 trucks were beautiful, straight and clean. Abe the owner of Truck Kings and I started discussing buying and trade options. Abe displayed a true knowledge of what he had to sell and was forward and honest about the strengths and weaknesses of each vehicle that we were in discussion about. His knowledge and honesty help me in making the decision as to which vehicle I would ultimatly purchase. During our discussion my trade in vehicle was in play and Abe offered me a very fair price on it. Finalizing our transaction I was left with a feeling like I had been treated well on the sell of my old truck and the purchase of my new truck. There were a few minor items on my new truck that needed to be fixed or replaced and Abe said he would take care of them, he did so promptly only a few days after I had taken delivery of my truck. Abe is a man of his word, his word is his bond and he is a gentelman. If you are in the market for a truck, take time to visit Truck Kings-Abe does some amazing customizing work, I get comments on my truck almost everytime I drive it. He keeps clean good looking inventory and I will definitley be back when it is time for another truck. Abe runs a clean, straigtforward and honest shop. He fascilitates a no pressure enviorment and can help arrange several different financing institutions to help you in getting the best deal avaliable.
The best deal 4me my dream truck it's mine if poss
I want this truck if I can't get help with finances I'll try againfri and ill have cash. I want it 100percent I've only dreamed of owning a truck like this and now if the Good Lord willing and the creek don't rise.a dream might come true.,!!!!!! I love everything about this ride.just rite for the open road.
Used
2022 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
Internet shopping
Greg Wolaver was a great help in regards to my long distance purchase of a used Jeep Commander. He was up front during the whole process and greatly assisted in the shipping process. I haven’t gotten my vehicle yet but if it’s half as good as he stated it will be a great purchase.
Great Truck (sans MPG)
Love everything about this Duramax Denali except the fuel mileage. 13-14 Mpg tops when not towing. Bought truck cause previous was stolen. Wish I still had my 6.2 High Country!
Used
2019 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Great experience with Berkenkotter Rastle Rock.
We had an excellent experience working with Dan & Wade on the purchase of our new vehicle. The sales team helped us through the process and were incredibly patient. Used vehicle prices are out of control and it's comforting to know there are car dealers that go the extra mile. I would rate our buying experience 10/10. We will be back when looking for another vehicle. Give them an opportunity to earn your business!
very powerful power train and will tow and haul an
this truck fits my needs better than the other 2500 models. Its hauling and towing performance along with its many people comforts will satisfy us for a long time to come.
Used
2015 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
The service writer was very professional, it's very
The service writer was very professional, it's very comfortable place when your waiting for your vechicle and the service writer check to see how I was doing and ask if I needed anything. So I am pleased with the service I was provided. Thank you,
Very beautiful truck
This truck would help me thru out my needs I and my family love this beautiful truck, there is no better place for me to shop than the Paso Robles Chevrolet I highly recommend them
GMC Sierra 2500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 2500 | $78,306 | 1 Good deal |
| 2025 GMC Sierra 2500 | $74,289 | 5 Good deals |
About the GMC Sierra 2500
How much does the GMC Sierra 2500 cost?
The GMC Sierra 2500 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for the Sierra 2500 is $56,268, with pricing starting at $3,200.
What are some similar vehicles and competitors of the GMC Sierra 2500?
The GMC Sierra 2500 compares to and/or competes against the following vehicles:
What trim levels are available for the GMC Sierra 2500?
The GMC Sierra 2500 is available in the following trim levels:
What model years are available for the GMC Sierra 2500?
Available model years for GMC Sierra 2500 inventory range from 2003 to 2026.
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
Used GMC Sierra 2500 by price
Compare the GMC Sierra 2500
GMC Sierra 2500 under $899,990 by city
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GMC Sierra 2500 under $899,990 in Gunbarrel, CO
12 Great Deals out of 65 listings starting at $11,569
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GMC Sierra 2500 under $899,990 in Longmont, CO
12 Great Deals out of 62 listings starting at $11,569
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GMC Sierra 2500 under $899,990 in Boulder, CO
14 Great Deals out of 70 listings starting at $11,569
-
GMC Sierra 2500 under $899,990 in Erie, CO
19 Great Deals out of 93 listings starting at $11,569
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GMC Sierra 2500 under $899,990 in Altona, CO
12 Great Deals out of 59 listings starting at $11,569
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GMC Sierra 2500 under $899,990 in Lafayette, CO
16 Great Deals out of 78 listings starting at $11,569
-
GMC Sierra 2500 under $899,990 in Paragon Estates, CO
15 Great Deals out of 74 listings starting at $17,999
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GMC Sierra 2500 under $899,990 in Louisville, CO
16 Great Deals out of 79 listings starting at $17,999
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GMC Sierra 2500 under $899,990 in Pine Brook Hill, CO
10 Great Deals out of 54 listings starting at $11,569
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GMC Sierra 2500 under $899,990 in Lazy Acres, CO
10 Great Deals out of 52 listings starting at $11,569
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GMC Sierra 2500 under $899,990 in Frederick, CO
14 Great Deals out of 73 listings starting at $11,569
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GMC Sierra 2500 under $899,990 in Lyons, CO
11 Great Deals out of 46 listings starting at $11,569
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This vehicle is certified pre-owned, backed by a manufacturer warranty, and typically undergoes a rigorous multi-point inspection to ensure quality and reliability.
This vehicle is currently in high demand given its competitive price, desirable features, and overall condition, and may have a higher chance of selling quickly.
