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*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.
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Used
GMC Sierra 2500 trucks
for sale
near
Thomaston, CT
under $100,000
- 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
2024 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Great experience.
Great experience. Tyler was fantastic to work with, the whole thing was completed quickly and we left very satisfied!
One very awesome vehicle.
One very awesome vehicle. Checks all the boxes you need in a truck and exceeds expectations on quality, performance, and looks great ,too. Love my nre truck.






Used
2021 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Whole experience was outstanding.
Whole experience was outstanding. Don is an outstanding salesman and I will be contacting him in my next search for a vehicle.
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
2019 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
Review
Thorough and courteous. Great customer service. Oil changed and issue checked out and repaired.
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
2024 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Service
Excellent service! Quick and easy process. Very professional and friendly.
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.






GMC Certified
2023 GMC Sierra 2500 SLE
Vehicle information
Features






Used
2022 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
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
2020 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Fast and friendly response
Very fast friendly response from internet manager letting me know they just took a deposit and the car I asked about was no longer available. Didn’t push anything else which is nice.
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
2022 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Jerry DeJesus demonstrated exceptional professionalism
Jerry DeJesus demonstrated exceptional professionalism and expertise throughout our experience. It was truly a pleasure collaborating with him. He took the time to address all of our concerns as parents of a new driver and successfully guided us in finding a car that was not only equipped with numerous safety features but also remarkably affordable. We extend our heartfelt thanks to Jerry and highly recommend him to anyone in search of a vehicle.
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
2020 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Great Service Department
In maintaining our 2020 Buick Enclave, we have used Buick GMC Watertown Ct, since our purchase in September 2019 and have always received the best on time, reliable service and friendly customer service on our visits. The staff that reviews what service I am requesting will always review for possible upcoming recommendations of service as well. The cost and approximate time of completion has always been spot on.
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
2023 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Great sales person Tyler used car sales manager never met
Great sales person Tyler used car sales manager never met could’ve came out and introduced himself, but could not say enough about the sales person Tyler thank you again






Used
2022 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Great service every time
I bring my fleet vehicle here for repairs/maintenance. Other dealerships have treated me like a second class customer because the fleet company pays for everything. I have never once felt that way at Sullivan's. They are always kind and have gone above and beyond for me at times. My husband became a loyal customer here because of their great customer service.






Used
2020 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Unbelievable shopping experience!
I had THE best experience at Carmax...the salespeople were non-pressuring, helpful and just amazing (especially Daniel!). They went out of their way to make every step comfortable and unpainful. I will most definitely go there when I need to buy my daughter a car and when I need to upgrade in a few years!
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
2018 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Thank You Norbit and Thank Steve for crunching those
Thank You Norbit and Thank Steve for crunching those numbers for making it happen. Nor you wanted me in that Cadillac Escalade and I am. Once again thank you J&M Automotive for looking for me.
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.






Used
2024 GMC Sierra 2500 Denali Ultimate
Vehicle information
Features
Reviews
The sales person Mr.
The sales person Mr. William Kendal was at all times helpful. Didn't like the unprofessional conduct of the financial department providing me a temporary registration with the wrong VIN#, and holdig on to the vehicle documents until the certified bank check drawn on a CT.state financial institution check cleared without informing me. All they had to do was simply tell me what the there s SOP was. Also didn't appreciate there behavior providing misinformation after they forgot to request the certificate for my veterans discount. After returning to the store to help them solve the problem, they falsely claimed they wanted to make sure If there were other rebates coming to me.






Used
2024 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Found the specific, rare car for which i was searching.
Found the specific, rare car for which i was searching. It was at Blasius pre owned. I had never heard of them so I took the trip from NY to see the car. The car was as advertised and I bought the car. 3 days later I went back and took delivery. Every part of the transaction was great. From the moment I walked in I was treated respectfully and everyone there is so pleasant. There were no games/nonsense just a straight, easy deal. No upsells, no hidden fees, it could not have gone smoother. I buy lots of cars and highly recommend Blasius. Special thanks to Adam Betancourt the salesman and Bobby Fernandez the GM for making this such a great experience.






Used
2018 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
Well I came 31/2 hours to see a car and it’s gone
Well I came 31/2 hours to see a car and it’s gone yesterday I wanted it I was buying it because i recked mine i wanted the same thing
Greatest truck ever
Just the truck I was dreaming. Auto world experience is great on product knowledge high recommend 2500 Hdz Denali truck you won’t regretted price product and drive experience






Used
2024 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Service is always tops Sales department the best Would
Service is always tops Sales department the best Would recommend to anyone looking for a new, used car or service. Blasius Chevrolet is, by far, the best dealership in Connecticut






Used
2018 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Wonderful experience, never felt pressured.
Wonderful experience, never felt pressured. Chris answered all the questions and explained features. He was very patient with me. I would recommend this place to anyone
Very comfortable to drive and relax in!
This truck was exactly what I was looking for! Great ride, and it will haul every thing that I need it to.! Low mileage without new car up front expense!






Used
2019 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Jerry is amazing!
Jerry is amazing! I really enjoyed finding my car online, and when I left a message about the one I was interested in, Jerry responded that same night. He even followed up with a text the next morning to let me know he’d check to make sure the car wasn’t already sold. Jerry—and everyone else at the dealership—treated us with genuine kindness and respect. I absolutely love my Rogue, and the color is beautiful! If you’re looking for a used car, I highly recommend coming here and asking for Jerry!
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
2024 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
I bought a 2018 Nissan pro x a little over a year ago.
I bought a 2018 Nissan pro x a little over a year ago. I drove from ny to look at it it was clean except for front bumper was hit in corner and paint was scraped. They repaired the damage perfectly by the time I picked it up. I was impressed by their professionalism. The only thing that I thought was a little extravagant was the dealer fee. We negotiated a fair price and now it’s mine. I’ve had the vehicle for over a year and it is flawless. I felt I needed time to make a fair judgement of the vehicle before my review. I would not hesitate to buy another vehicle from thi dealership
GMC Sierra 2500 prices by year
Model year | Prices from | Deals |
---|---|---|
2025 GMC Sierra 2500 | $49,409 |
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 $56,523, with pricing starting at $5,492.
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 2013 to 2025.
*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.
Compare the GMC Sierra 2500
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