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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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New and used
2025 GMC Sierra 2500 trucks
for sale
near
Windsor Locks, CT
- 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.






New
2025 GMC Sierra 2500 Denali Ultimate
Vehicle information
Features
Reviews
It was a good experience.
It was a good experience. The lead sales man was a little on the rough side. But all was good.






New
2025 GMC Sierra 2500 Base
Vehicle information
Features






New
2025 GMC Sierra 2500 Base
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New
2025 GMC Sierra 2500 SLE
Vehicle information
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New
2025 GMC Sierra 2500 Base
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New
2025 GMC Sierra 2500 SLT
Vehicle information
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New
2025 GMC Sierra 2500 Base
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New
2025 GMC Sierra 2500 Base
Vehicle information
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Vehicle information
Features
Reviews
2019 GMC Terrain Service
I delivered my Terrain to the service department and waited in the lounge. When the service was completed I paid with my GM credit card. The service department delivered my vehichle after it had been washed.






New
2025 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
National part backorder
Due to a national backorder of a part my truck took over 120 days to return. Gates GMC did inform me thru the process






Vehicle information
Features
Reviews
Car looked better than new after repairs
An amazing experience with the service department and collision center at this dealership after my car was damaged by a fallen tree. The process right from the beginning was flawless. Getting the car to the dealership, getting the rental car, the time it took to get the parts and do the repairs was quicker than expected. The ease and efficiency of the repairs and the quality and timeliness makes Gates GMC. Jamie Laskow and his team get 4 stars from me! I will definitely recommend your dealership in the future.






Vehicle information
Features
Reviews
I recently had an outstanding experience purchasing my
I recently had an outstanding experience purchasing my 2024 GMC Sierra AT4 at Gates GMC in Windham, CT. From start to finish, the team at Gates exhibited clear communication and professionalism, making the process seamless and stress-free. What stood out the most was the transparency and honesty in every interaction, with no hidden agendas or surprises. I felt valued and understood, and they made sure all my questions were answered. I highly recommend Gates GMC for anyone looking for a reliable and customer-focused dealership. Thank you for an exceptional experience!
New
2025 GMC Sierra 2500 SLT
Vehicle information
Features
Vehicle information
Features
Reviews
Purchased a great car both times.
I purchased a XT5, 1/30, this is my second purchase from Sullivan Cadillac since 11/21. Both experience were 5 star, Jack and the hold team at the dealership were just supper. I would recommend this dealership and Jack to anyone. Great job folks.
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Used
2025 GMC Sierra 2500 Denali
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Used
2025 GMC Sierra 2500 Denali Ultimate
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Used
2025 GMC Sierra 2500 Denali
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New
2025 GMC Sierra 2500 Denali Ultimate
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New
2025 GMC Sierra 2500 Denali
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New
2025 GMC Sierra 2500 SLE
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New
2025 GMC Sierra 2500 SLT
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New
2025 GMC Sierra 2500 SLE
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New
2025 GMC Sierra 2500 Denali Ultimate
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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.
**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.
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