Save your search and get notified when new inventory arrives.
Contact seller
Customize your budget
*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.
About your privacy: Cars.com is asking for your ZIP and credit rating because it helps us to make an educated guess at your sales tax and loan interest. These two factors can greatly change your monthly payment.
Used
GMC Sierra 2500 trucks
for sale
near
Posen, IL
under $100,000
- 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.






Used
2025 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
I would recommend client manager/sales person Bryan
I would recommend client manager/sales person Bryan Druktenis. He is very professional and friendly. He did not pressure me. Lol. Once l purchased my vehicle(s) he was very helpful in showing me how to set up my features and answered any questions l had when l called. Bryan was my sales person for my Acadia that l traded in for the Yukon.
So far so good!
So far so good! This truck is the nicest truck I have ever driven. The stance, ride comfort and options are top notch. I went from a 2023 High Country that was having drive train issues but had all the creature comforts that you would expect in a top of the line truck. With the lack of confidence in that particular models 10 speed transmission issues, it became necessary to reestablish my confidence in my General Motors product.












Used
2021 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Excellent experience dealing with Eric.
Excellent experience dealing with Eric. I purchased remote and from initial contact to after delivery questions he was responsive and helpful. I would purchase again from this dealer!
Beautiful truck
I love my 2021 GMC Denali 2500HD. I have gotten more complements on this truck than any other vehicle that I have owned. I get great highway fuel milage average 19-26mpg,which is great for a heavy duty truck!






Used
2024 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Great Cars and also good service.
Great Cars and also good service. Vincent Vega was very helpful thank you Vincent for all your help. This is our third car from Castle Buick GMC. We loved thank you .!
One very awesome vehicle.
One very awesome vehicle. Checks all the boxes you need in a truck and exceeds expectations on quality, performance, and looks great ,too. Love my nre truck.
GMC Certified
2025 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Great Experience
I was very fortunate to have the greatest salesman, manger, General manager and finance director in the business assist in my purchase. Thank you "Coach" for all you do for me and the family

Used
2024 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Worked with Brian Newcomb, he was amazing!
Worked with Brian Newcomb, he was amazing! He made the buying process a breeze! Highly recommend!
Best truck I have owned
I've owned every other American truck and this is my first GMC. I bought the 2500 HD Texas Edition. I absolutely love this truck. It's everything I could have hoped for and more. It is able to pull my 30' travel trailer with no problems. So now when we go out with our trailer I'll have no worries. The look and feel of the truck is outstanding. The 6.6L gas engine actually gets great gas mileage. It gets about the same as my Ford f150 ecoboost. Probably better on the highway. Looking at about 13 miles in the city and 15 plus on the highway. Definitely got a better truck for the price compared to any other american models with the same characteristic and options.
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
2015 GMC Sierra 2500 Denali
Vehicle information
Features






Used
2021 GMC Sierra 2500 Denali
Vehicle information
Features






Used
2016 GMC Sierra 2500 SLT
Vehicle information
Features






Used
2024 GMC Sierra 2500 Denali Ultimate
Vehicle information
Features






Used
2023 GMC Sierra 2500 AT4
Vehicle information
Features






Used
2024 GMC Sierra 2500 AT4
Vehicle information
Features






Used
2022 GMC Sierra 2500 Denali
Vehicle information
Features






Used
2024 GMC Sierra 2500 Denali Ultimate
Vehicle information
Features






Used
2024 GMC Sierra 2500 AT4
Vehicle information
Features






GMC Certified
2024 GMC Sierra 2500 Denali
Vehicle information
Features
-
Prev - 1
- 2
-
Next
GMC Sierra 2500 prices by year
Model year | Average price | Deals |
---|---|---|
2026 GMC Sierra 2500 | $80,066 | |
2025 GMC Sierra 2500 | $71,016 | 2 Good deals |
*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.
Used GMC Sierra 2500 by price
Compare the GMC Sierra 2500
GMC Sierra 2500 under $100,000 by city
-
GMC Sierra 2500 under $100,000 in Posen, IL
7 Great Deals out of 25 listings starting at $8,500
-
GMC Sierra 2500 under $100,000 in Dixmoor, IL
7 Great Deals out of 25 listings starting at $8,500
-
GMC Sierra 2500 under $100,000 in Robbins, IL
8 Great Deals out of 26 listings starting at $8,500
-
GMC Sierra 2500 under $100,000 in Blue Island, IL
8 Great Deals out of 26 listings starting at $8,500
-
GMC Sierra 2500 under $100,000 in Midlothian, IL
8 Great Deals out of 26 listings starting at $8,500
-
GMC Sierra 2500 under $100,000 in Markham, IL
7 Great Deals out of 25 listings starting at $8,500
-
GMC Sierra 2500 under $100,000 in Harvey, IL
7 Great Deals out of 25 listings starting at $8,500
-
GMC Sierra 2500 under $100,000 in Riverdale, IL
7 Great Deals out of 25 listings starting at $8,500
-
GMC Sierra 2500 under $100,000 in Calumet Park, IL
8 Great Deals out of 26 listings starting at $8,500
-
GMC Sierra 2500 under $100,000 in Crestwood, IL
8 Great Deals out of 26 listings starting at $8,500
-
GMC Sierra 2500 under $100,000 in Phoenix, IL
7 Great Deals out of 21 listings starting at $8,500
-
GMC Sierra 2500 under $100,000 in Merrionette Park, IL
8 Great Deals out of 26 listings starting at $8,500
- ${price_badge()}
- ${ami_badge()}
- ${battery_badge()}${ev_report_link()}
- ${hot_car_badge()}
- ${award_badge()}
- ${cpo_badge()}
${price_badge_description}
${ami_badge_description}
The EV Battery Rating is based on this vehicle's current expected range relative to the vehicles expected range when new. ${battery_badge_text}
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.