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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
2026 GMC Sierra 1500 trucks
for sale
near
Thompsonville, 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.
Vehicle information
Features






New
2026 GMC Sierra 1500 Elevation
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
2026 GMC Sierra 1500 Denali
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New
2026 GMC Sierra 1500 Elevation
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New
2026 GMC Sierra 1500 Elevation
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New
2026 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Awesome place
I had an awesome experience with these folks. Friendly, informative, answered all of my questions. Jonathon was a joy to work with, as was Jeff. I have told all of my family what a great, stress free experience I had. If I ever have the need again it will be my go to place!






New
2026 GMC Sierra 1500 AT4
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Reviews
Review
Thorough and courteous. Great customer service. Oil changed and issue checked out and repaired.






New
2026 GMC Sierra 1500 AT4
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.
New
2026 GMC Sierra 1500 Elevation
Vehicle information
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There are additional matching cars outside your search area.
Partial matches are generated by applying your search criteria to a larger search area. Our goal is to help you discover additional cars that match your search preferences.
As a benefit to some of our dealer customers, we display their listings first.






New
2026 GMC Sierra 1500 Elevation
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New
2026 GMC Sierra 1500 Elevation
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New
2026 GMC Sierra 1500 Elevation
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New
2026 GMC Sierra 1500 Elevation
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2026 GMC Sierra 1500 Denali Ultimate
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New
2026 GMC Sierra 1500 Elevation
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New
2026 GMC Sierra 1500 Elevation
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New
2026 GMC Sierra 1500 Elevation
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New
2026 GMC Sierra 1500 Pro
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New
2026 GMC Sierra 1500 Elevation
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GMC Sierra 1500 prices by year
Model year | Average price | Deals |
---|---|---|
2025 GMC Sierra 1500 | $53,415 |
*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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2026 GMC Sierra 1500 by body style
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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.