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New and used
2026 GMC Sierra 1500 Denali trucks
for sale
near
McCullom 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 1500 Denali
Vehicle information
Features
Reviews
Overall, the service was professional, informative and
Overall, the service was professional, informative and understandable from beginning to end. I came in explaining what I was looking for and that’s how it was through the process.






New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I have never been happier since I bought my Buick at The
I have never been happier since I bought my Buick at The dealership in Barrington Illinois Tim McIntyre was our salesman and Dave the manager Patrick in the finance department Went far above any expectation I had for any dealership we had been looking for a car for several months I’ve never bought a Buick It truly is The best car I have ever owned This dealership Made this purchase so enjoyable I recommend them to oeveryone






New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
VVVal
Kim was incredible in helping me get my repairs covered by my extended warranty! Details of service were provided and car was ready when needed.






New
2026 GMC Sierra 1500 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
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Excellent as well as timely service.
Excellent as well as timely service. However, was not told in advance that paying with Credit Card would have a 3% fee.

New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Kevin was very helpful and gave me a deal on the Sierra
Kevin was very helpful and gave me a deal on the Sierra 1500 that I couldn't refuse 10 out of 10

New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Mike R was our sales consultant.
Mike R was our sales consultant. He did a terrific job explaining everything in addition to helping us with creative financing. Kudos to the dealership!

New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
GREAT Jamie was awesome He listened to my wants and need
GREAT Jamie was awesome He listened to my wants and need Best dealership experience in 7 New vehicle experiences

New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great service as always Mike really help us every time we
Great service as always Mike really help us every time we need a car he understands why you looking and what it fits you better.






New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
The entire team at this location far exceeded our
The entire team at this location far exceeded our expectations! Our sales consultant Sandi was extremely easy to work with, and he had our best interest in mind when working on a deal for a new truck. When it came time to financing, Alex ensured we got in and out with exactly what we needed. He provided us personal stories bridging to his recommendations that help guide my wife and I in a direction that surpassed what we originally had in mind. Finally, throughout the visit Edgar and Manny ensured we felt comfortable as we worked though a deal that would ultimately have us driving home without any doubts in a vehicle that can grow with my family. They were the cherry on top to an already excellent experience. Thank you from the bottom of our hearts for such a great team!

New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
It is a service business.
My wife and I recently purchased a new car for her at Kunes of Belvidere. I am in sales and I have purchased many cars over the years. I’m not easily impressed but, I have to say, “Mo” Owaynat the general sales manager and numbers guy went over and above to get a deal done for me and my wife. On top of being a really nice guy, he worked hard to get a deal done that fit our needs and I felt the whole time like he was working as much for me as he was working for the dealership. He is a good human being. Go talk to him and you’ll see what I mean. And our experience with our sales person, Robert “Brinck” Brinckerhoff was fantastic. Being in sales, I very much appreciated his congeniality, low pressure approach, and his customer centric interaction. I felt like I made a friend. If you’re in the market for a car, go see “Brinck

New
2026 GMC Sierra 1500 Denali
Vehicle information
Features

New
2026 GMC Sierra 1500 Denali
Vehicle information
Features

New
2026 GMC Sierra 1500 Denali
Vehicle information
Features

New
2026 GMC Sierra 1500 Denali
Vehicle information
Features

New
2026 GMC Sierra 1500 Denali
Vehicle information
Features






New
2026 GMC Sierra 1500 Denali
Vehicle information
Features

New
2026 GMC Sierra 1500 Denali
Vehicle information
Features






New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Great Dealership and service team .
Jim Sprandel sevice mgr. very nice man and also explains everything to you clearly.The rest of the staff was also very pleasant. I would give this dealership 10 stars if I could. My car was washed for me and I needed it considering it was a cold winter day.






New
2026 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
I have to say that Ryan and the staff at Napleton sure
I have to say that Ryan and the staff at Napleton sure know what they are doing. They were quick to answer any questions I had and took away the fear of buying a car! They were friendly and knowledgeable and NOT pushy like most car salesmen. I walked away with a vehicle that I love and a great experience!! Thank you Ryan for all your help!!
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About the 2026 GMC Sierra 1500 Denali
Denali shown.
- Seating
- 5
- Door count
- 4
- Drivetrain
- Rear Wheel Drive
- Combined MPG
- 17
- Transmission
- 10-Speed A/T
- Engine
- 305.0-hp, 3.0-liter, Straight 6 Cylinder Engine (Diesel Fuel)
How much does the 2026 GMC Sierra 1500 Denali cost?
The 2026 GMC Sierra 1500 Denali price depends on optional features. Prices typically start at $65,900.
What is the MPG of the 2026 GMC Sierra 1500 Denali?
The 2026 GMC Sierra 1500 Denali offers up to 16 MPG in city driving and 20 MPG on the highway for a combined rating of 17 MPG.
These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle options, driving conditions, driving habits, vehicle maintenance, and other factors.
What are some similar vehicles and competitors of the 2026 GMC Sierra 1500 Denali?
The 2026 GMC Sierra 1500 Denali compares to and/or competes against the following vehicles:
Denali (3 styles)
Style | ||
---|---|---|
4WD Crew Cab 157" Denali | 2WD Crew Cab 147" Denali | 4WD Crew Cab 147" Denali |
Inventory price | ||
Starting at $69,700 | Starting at $65,900 | Starting at $69,200 |
Combined MPG | ||
17 | 17 | 17 |
Engine | ||
420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline Fuel) | 305.0-hp, 3.0-liter, Straight 6 Cylinder Engine (Diesel Fuel) | 420.0-hp, 6.2-liter, 8 Cylinder Engine (Gasoline 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.
GMC Sierra 1500 trims
-
GMC Sierra 1500 2026 Elevation
73 listings starting at $47,753
-
GMC Sierra 1500 2026 SLT
52 listings starting at $55,600
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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.