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New and used
2026 GMC Sierra 2500 trucks
for sale
near
Third Lake, 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
2026 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Great experience.
Great experience.. Vanessa came out and took care of me with all the answers..I'd recommend her.
New
2026 GMC Sierra 2500 Pro
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
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
This dealership was great the hospitality was through the
This dealership was great the hospitality was through the roof, though we didn't make a deal I would 100% comeback.
Used
2026 GMC Sierra 2500 SLE
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
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Very smooth experience.
Very smooth experience. Seann is an excellent young salesman. Darien will do anything to work with you. Erick, the manager is very accommodating. A++++ dealership.
New
2026 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Most pleasant waiting room anywhere and the friendliest
Most pleasant waiting room anywhere and the friendliest service people.The mechanics always attempt to fix problems before they start. Also wait time ia always fair.
New
2026 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
My salesman Esad was great.
My salesman Esad was great. He was very knowledgeable. Everyone was very friendly and helpful.
New
2026 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
Great experience with this dealership and staff, good
Great experience with this dealership and staff, good communications, got the truck I wanted, Thank you
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
I had the best experience buying my new Trax.
I had the best experience buying my new Trax. Craig Winger was absolutely amazing. He is very personable He was great about what I wanted and did not try to persuade me in any way. Just a great guy and you felt more like he was friend than a salesman. The whole Lynch family was great. Tom and Dan were great also. Just a great experience for buying a vehicle, the best I have ever had. Craig thank you I Love my New Blue Trax. Would totally recommend Lynch for your next vehicle purchase. 10 stars and more
New
2026 GMC Sierra 2500 SLT
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
2026 GMC Sierra 2500 Pro
Vehicle information
Features
Reviews
Jamie Liszka at Woody Buick was fantastic to work with.
Jamie Liszka at Woody Buick was fantastic to work with. He was friendly, knowledgeable, and made the entire purchasing process quick. I truly appreciated his professionalism and how easy he made everything. I highly recommend Jamie if you’re in the market for a vehicle.
New
2026 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Expectations were set and met on a Saturday with college
Expectations were set and met on a Saturday with college football on. Two separate seating areas in case you wanted the option to watch something else. There's also a kids' area if you have a little one who needs to be entertained for the time you're there.
New
2026 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
We had an incredibly smooth and pleasant experience at
We had an incredibly smooth and pleasant experience at this dealership from beginning to end. The entire process was seamless from start to finish. Every staff member we interacted with was helpful, courteous and professional. Buying a vehicle from Seann Omara was particularly wonderful— he is knowledgeable, helpful, and genuinely committed to making sure we got the best deal possible. We left very pleased and would happily recommend Napleton Buick GMC to others!
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Always smooth and easy-going at Lynch.
Always smooth and easy-going at Lynch. They take great care of us! Would highly recommend anyone in the market for a new or pre-owned vehicle.
New
2026 GMC Sierra 2500 SLE
Vehicle information
Features
New
2026 GMC Sierra 2500 Denali Ultimate
Vehicle information
Features
Reviews
Aleksei and the rest of the team were great.
Aleksei and the rest of the team were great. No pressure environment. The process was efficient. Team was very friendly and courteous. Highly recommend.
New
2026 GMC Sierra 2500 Denali Ultimate
Vehicle information
Features
Reviews
I was very impressed from start to finish.
I was very impressed from start to finish. Shelley Barr & all her associates were very knowledgeable, kind, helpful, and honest. I appreciated everything they did to make buying a new car enjoyable and not stressful.
New
2026 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
As always, service and service reps were great-wonderful
As always, service and service reps were great-wonderful dealership and service department?have purchased cars from dealer for many, many years and will continue to do so.
Vehicle information
Features
Reviews
“Excellent Communication
My first experience at this dealership will definitely bring me back. We are so happy with our purchased! We had Alex Alverio from Sales, he was very professional & helpful, has awesome customer service & we highly recommend Alex. Thank you so much and keep it up!
New
2026 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Shelley Barr was the very best salesperson I have ever
Shelley Barr was the very best salesperson I have ever dealt with and I have purchased lots of vehicles!!
GMC Sierra 2500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2025 GMC Sierra 2500 | $66,814 | 3 Good deals |
| 2024 GMC Sierra 2500 | $65,962 | 9 Good deals |
About the 2026 GMC Sierra 2500
Pro shown (base trim).
- Seating
- 2
- Door count
- 2
- Drivetrain
- Rear-wheel drive
- Combined MPG
- 0
- Transmission
- 10-Speed A/T
- Engine
- 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)
How much does the 2026 GMC Sierra 2500 cost?
The 2026 GMC Sierra 2500 price depends on trim level and optional features. Prices typically start at $47,000 and go as high as $94,500 for fully loaded models.
What are some similar vehicles and competitors of the 2026 GMC Sierra 2500?
The 2026 GMC Sierra 2500 compares to and/or competes against the following vehicles:
AT4 (2 styles)
| Style | |
|---|---|
| 4WD Crew Cab 159" AT4 | 4WD Crew Cab 172" AT4 |
| Inventory price | |
| Starting at $72,200 | Starting at $72,400 |
| Combined MPG | |
| 0 | 0 |
| Engine | |
| 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) |
AT4X (1 style)
| Style |
|---|
| 4WD Crew Cab 159" AT4X |
| Inventory price |
| Starting at $85,200 |
| Combined MPG |
| 0 |
| Engine |
| 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) |
Denali (2 styles)
| Style | |
|---|---|
| 4WD Crew Cab 159" Denali | 4WD Crew Cab 172" Denali |
| Inventory price | |
| Starting at $75,200 | Starting at $75,400 |
| Combined MPG | |
| 0 | 0 |
| Engine | |
| 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) |
Denali Ultimate (2 styles)
| Style | |
|---|---|
| 4WD Crew Cab 159" Denali Ultimate | 4WD Crew Cab 172" Denali Ultimate |
| Inventory price | |
| Starting at $94,200 | Starting at $94,500 |
| Combined MPG | |
| 0 | 0 |
| Engine | |
| 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) |
Pro (10 styles)
| Style | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 2WD Crew Cab 172" Pro | 2WD Crew Cab 159" Pro | 4WD Crew Cab 159" Pro | 4WD Crew Cab 172" Pro | 4WD Double Cab 162" Pro | 4WD Double Cab 149" Pro | 2WD Double Cab 149" Pro | 2WD Double Cab 162" Pro | 2WD Reg Cab 142" Pro | 4WD Reg Cab 142" Pro |
| Inventory price | |||||||||
| Starting at $50,900 | Starting at $50,700 | Starting at $53,500 | Starting at $53,700 | Starting at $51,900 | Starting at $51,700 | Starting at $48,900 | Starting at $49,100 | Starting at $47,000 | Starting at $49,800 |
| Combined MPG | |||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Engine | |||||||||
| 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) |
SLE (5 styles)
| Style | ||||
|---|---|---|---|---|
| 4WD Crew Cab 172" SLE | 4WD Crew Cab 159" SLE | 4WD Double Cab 162" SLE | 4WD Double Cab 149" SLE | 4WD Reg Cab 142" SLE |
| Inventory price | ||||
| Starting at $58,100 | Starting at $57,900 | Starting at $56,300 | Starting at $56,100 | Starting at $54,000 |
| Combined MPG | ||||
| 0 | 0 | 0 | 0 | 0 |
| Engine | ||||
| 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) |
SLT (2 styles)
| Style | |
|---|---|
| 4WD Crew Cab 159" SLT | 4WD Crew Cab 172" SLT |
| Inventory price | |
| Starting at $65,200 | Starting at $65,500 |
| Combined MPG | |
| 0 | 0 |
| Engine | |
| 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) |
*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 2500 in Round Lake Beach, IL
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2026 GMC Sierra 2500 in Round Lake Park, IL
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2026 GMC Sierra 2500 by cab 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.