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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
Sycamore, IL
- 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 Base
Vehicle information
Features
Reviews
Bill was fantastic to work with!
Bill was fantastic to work with! Whole process took only a couple of hours and everyone was very helpful. Pricing was transparent and they worked with me to get me best interest rate possible.
New
2025 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Chris does an outstanding job every time I visit.
Chris does an outstanding job every time I visit. He is very accommodating and always aware of my needs and my time. Only place I service all my vehicles (3) and drive 30 minutes even though there are 2 Chevy dealers much closer.
New
2025 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Buying my Camaro from Castle Chevrolet in McHenry was an
Buying my Camaro from Castle Chevrolet in McHenry was an outstanding experience from start to finish. I worked with Eric Loredo, who set the tone by doing a full virtual walk around and video of the car before I arrived, answering all my questions in real time. When my wife and I landed at ORD, the car was spotless and ready to go. Finance Manager Mike Lazzara had all documents sent ahead so I could DocuSign, making the delivery quick and smooth. Sales Manager Matt Knudson, GSM Jerry Spanier, and Andrew Sytsma (who wasn’t my salesman but still took time to chat and share product knowledge) all played a part in making this one of the easiest purchases I’ve ever had. The team knew my previous car was totaled in a tornado, and they went above and beyond to make this out-of-state transaction simple and stress-free. Eric and the entire Castle team reminded me that buying a car doesn’t have to be a battle. I would absolutely buy from them again.
New
2025 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Great staff and very good deals on new vehicles.
Great staff and very good deals on new vehicles. Quick, friendly and very helpful. I would recommend if your looking for a great deal check with these guys first. They will get you that Great deal others can't.
New
2025 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
My sales person at Castle Chevrolet was Tony Twall.
My sales person at Castle Chevrolet was Tony Twall. He was awesome to work with. He answered all my questions and was very knowledgeable. I have to say that this was the best vehicle buying experience I have ever had. My next purchase will be with the Castle dealership in McHenry IL and I will ask for Tony to be my sales person.
New
2025 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
The Marquardt experience was fantastic.
The Marquardt experience was fantastic. Our sales rep, Fiona, was very knowledgeable and provided world class service. If you are considering a vehicle from this dealership, we highly recommend her.
New
2025 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Worked with Brian again and had a smooth and great
Worked with Brian again and had a smooth and great experience. I highly recommend this dealership and Brian.
New
2025 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Easy to schedule service.
Easy to schedule service. They shuttled me to my home and back and were super fast and on time!
Vehicle information
Features
Reviews
Purchased a Camaro from 900 miles away.
Purchased a Camaro from 900 miles away. Anthony and Dan did a good job and made the purchase easy. They also assisted in shipping the car to me.
New
2025 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Thank you to the service team for your getting me all set
Thank you to the service team for your getting me all set for my roadtrip!
Used
2025 GMC Sierra 2500 AT4
Vehicle information
Features
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.
Used
2025 GMC Sierra 2500 Denali
Vehicle information
Features
GMC Certified
2025 GMC Sierra 2500 AT4
Vehicle information
Features
Used
2025 GMC Sierra 2500 SLE
Vehicle information
Features
Vehicle information
Features
Used
2025 GMC Sierra 2500 Denali
Vehicle information
Features
Used
2025 GMC Sierra 2500 Denali
Vehicle information
Features
Used
2025 GMC Sierra 2500 Denali Ultimate
Vehicle information
Features
Used
2025 GMC Sierra 2500 SLT
Vehicle information
Features
GMC Certified
2025 GMC Sierra 2500 Denali
Vehicle information
Features
Used
2025 GMC Sierra 2500 AT4
Vehicle information
Features
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GMC Sierra 2500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 2500 | $80,442 |
*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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2025 GMC Sierra 2500 by body style
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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.
