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
Longmont, CO
- 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
2024 GMC Sierra 2500 AT4






Vehicle information
Features
Reviews
We were incredibly happy with Eugene and the service
We were incredibly happy with Eugene and the service department today! They were fast and did great work!
Great Truck
I paid over $106,000 for this truck with warranty. Do not care much about miles per gal. at that that price range. Just too much truck for me at my age.






Used
2022 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
I recently traded in my 2016 Jeep and leased a 2025
I recently traded in my 2016 Jeep and leased a 2025 Tacoma. The sales person I dealt with, Ron Smith truly went above and beyond ensuring I got a more than fair trade in value for my Jeep and found me a great new vehicle at a great price. I probably was not the easiest customer to satisfy but Ron stuck with me and was extremely patient and courteous. Ron maintained a great balance between being very helpful while NOT being a pushy salesman. If you are planning on looking for a new car I highly recommend Corwin Toyota and suggest you ask for and wait for if necessary Ron Smith. Thanks again Ron.
Great Truck (sans MPG)
Love everything about this Duramax Denali except the fuel mileage. 13-14 Mpg tops when not towing. Bought truck cause previous was stolen. Wish I still had my 6.2 High Country!






Used
2019 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Chris at Interstate Ford was absolutely amazing.
Chris at Interstate Ford was absolutely amazing. He searched his inventory for a vehicle that I could afford. I would shop there again!
2019 GMC 2500 Denali Excellent Condition
Wonderful truck. Has had zero problems. I am trading for a new one. Truck is all original with no modifications. Truck is in excellent condition.






GMC Certified
2024 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
After any serving of a vehicle taking it through your car
After any serving of a vehicle taking it through your car wash before returning to customer. This might encourage more customer loyality. Oil change prices are too expensive. The expertise needed to do that job doesn't equalate to charging that amount.
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.






Used
2014 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
So comfortable and easy to work with.
So comfortable and easy to work with. Felt like it was exchanged between someone I have known for a long time. Very accommodating with my schedule.
Happy Customer
I drove to Crown Buick GMC after making an appointment with Tammy Wagner. She was a new sales person. Tammy is very patient. She enjoys people and made me feel comfortable. I had alot of questions about my new All Terrain Truck. When she didn't know the answer- she was honest. (thats important to me) They , Tammy Wagner and Mike Mathis her manager sold me the truck of my dreams. I plan to be a life long customer with Tammy Wagner at Crown Buick






Used
2024 GMC Sierra 2500 AT4
Vehicle information
Features






Used
2023 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Great dealership, very fair prices and a great salesman
Great dealership, very fair prices and a great salesman nick! Loved the whole process and very glad to have found this place. Not pushy, stuck to my budget and made buying my first car the best experience. Thanks Nick and Dellenbach motors!






Used
2015 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
I Didn't end up getting this car.
I Didn't end up getting this car. Overall Great customer service and follow through :)
Very beautiful truck
This truck would help me thru out my needs I and my family love this beautiful truck, there is no better place for me to shop than the Paso Robles Chevrolet I highly recommend them






Used
2017 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
I did not buy anything, but when I visited the
I did not buy anything, but when I visited the dealership, I found the employees to be friendly and helpful. The salesman I worked with was Mark and he was very nice and responsive. Despite the fact, the dealership was extremely busy that day, Mark came and met me within a few minutes of my arrival he was able to juggle several customers at once and allow me to test drive the vehicle I was seriously looking at.
Best Truck I ever owned!
This truck is everything I wanted! GMC, 4x4, Lifted, Low milage. It's going to be great for my hunting and 4 wheeling! I love it!






Used
2021 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Darren Sussman provided excellent and knowledgeable
Darren Sussman provided excellent and knowledgeable service. The dealership made our purchase efficient and simple.
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
2018 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
Very nice and friendly staff.
Very nice and friendly staff. Excellent service. Explain and answer customers FAQ . They have different models and deals for every customer what ever your style or your budget.
A Beast when it comes to hauling!
I love how the truck pulls and rides when towing. It will give any driver the confidence to tow anywhere. I haven't had a single issue with it. I love the way it looks and couldn't be happier.






Used
2020 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Amazing customer service in service department
Bought my vehicle from Golden, CO Carmax and didn't have any support for mechanical issues. Still purchased the vehicle because it is what I wanted. Ashley from sales in Golden was the worst! I ended up closing the deal with Cora who was amazing and clearly the exception to the rule in Golden. When I told Ashley there were issues with the brakes she was rude and didn't take me seriously. I ended up working with the Federal Heights dealership on repairs. Debbie in the service department took this on and was soooo amazing! She took care of everything and I am so greatful! The technican at this location was amazing as well (I forget his name unfortunately)! It is really a shame that I had to go to another location to get service, but I am so glad that I did. Outstanding job Federal Heights location!
2020 GMC 2500 AT4
This truck is the truck that all others should look up to. It rides great, will tow a house, runs smooth, and gets great fuel economy. The Allison transmission is so smooth. The AT4 looks great too.






Used
2018 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
Greatest truck ever
Just the truck I was dreaming. Auto world experience is great on product knowledge high recommend 2500 Hdz Denali truck you won’t regretted price product and drive experience






Used
2020 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Great experience
We purchased our Ford F350 about a month ago for a great price with absolutely no pressure or hassles from anybody there. They took our old F150 in trade and delivered the new truck down to Colorado Springs. Mike replaced the cracked windshield before delivery which we hadn't asked for or expected, which was awesome. Already put a hard 5,000 miles on it pulling a very heavy 5th wheel RV trailor in a across country move. The truck performed great and we absolutely love it!
Best truck I've owned yet
What a gorgeous truck, runs good, sounds good and has all of the amenities I need although I am looking forward to their next interior upgrade.





Used
2012 GMC Sierra 2500 SLT
Vehicle information
Features
Reviews
Reliable and feel very safe.
Love this vehicle. I feel safe transporting my grand daughters. It is reliable. It?s great on highway and city driving. I would recommend a GMC






Used
2014 GMC Sierra 2500 Work Truck
Vehicle information
Features
Reviews
Honest and Fair
Personal service, honest and fair. Doug, Grant and Jeremy were fantastic from start to finish. We will definitely go to G2 for future car purchases!
fowl like a locomotive
We use our GMC Denali 2500 mostly for towing our 7,500 pound travel trailer. A big factor in high ratings is the diesel. With the tow/haul mode engaged, the mountains of north Georgia and the Smokies were no problem. Especially liked the exhaust brake on the long, steep downhills; it kept the rig totally safe under all braking conditions. We tow at 60 and get about 14 mpg with no headwind. If you tow campers or fifth wheelers, you know how good this is. We don't have the navigation screen, so the rear view camera appears on part of the rear view mirror. The image is small for hitching up; still need a spotter. The 2014 may not be as quiet as the upgraded 2015's, but noise is never an issue, and the Bose system sounds terrific. Just be really careful parking a crew cab with standard bed at Walmart......






Used
2009 GMC Sierra 2500 SLE Extended Cab
Vehicle information
Features
Reviews
Very helpful online application was easy 1 day
Very nice easy to get financed very helpful did not have to wait in and out it was I recommend 👍auto warehouse to my friends and family very good
GREAT VALUE
This truck has performed year after year delivering product and plowing snow with very little down time. We purchased the truck new and have maintained for 10 years.






Used
2017 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
The salesman was very helpful and went out of the way to
The salesman was very helpful and went out of the way to help me on this deal. I greatly appreciate his help. I would buy another vehicle from this location and not hesitate to recommend people their way. Again I thank Luis and the people at this location. Keep up the good work!
Lifted GMC with 35 inch wheels
Great truck with a ton of room and a lot of compliments. Not gonna find a cleaner truck with only 44,500 miles on it. 20' inch rims with 35 tires on a 6' inch lift kit.






Used
2004 GMC Sierra 2500 SLT H/D Extended Cab
Vehicle information
Features
Reviews
Great Jeep!
Thanks for the Jeep Rick! And thanks for all the help! The Jeep is really neat, I can finally go rock crawling. Dreams really do come true!
Great Truck !
First , I bought gas 6.0 , the diesels are great if you have serious towing needs. You just need to realize no matter how well you maintain a diesel it will at some point have an expensive repair. I've had my truck about 12 years. Regular maintenance , a few batteries , couple sets of tires and a MAF sensor. I tow a couple different trailers and the heaviest is less than 10k loaded. Towing , zero issues , no band aids , no overloads , no equalizing hitch , no sway control. Simply not needed. Drives amazing, stops great, Roughly 10 to 12 MPG towing. Unloaded driving at 60 / 65 on cruise solid 15 to 16 MPG. Yes , it won't pul the hills like a diesel but thats a small price to pay for an absolutely amazing truck. I want a new truck in the worst way but just can't part with this truck. A very good truck if you find a clean well maintained one.






Used
2021 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Annissa Medina has helped me so much taken care of
Annissa Medina has helped me so much taken care of everything for me and is always so sweet, understanding, and very helpful with everything that I’ve needed. Her communication skills and personality along with professionalism always reassure me that I am going to get the best service and make me feel like I am always welcomed.
Best truck I ever owned
Love my GMC. Owned a Chevy and this absolutely beats it hands down. Never had any issues. Inside is very comfortable and can't imagine driving anything else
GMC Sierra 2500 prices by year
Model year | Prices from | Deals |
---|---|---|
2025 GMC Sierra 2500 | $51,787 | |
2024 GMC Sierra 2500 | $62,602 | 10 Good deals |
About the GMC Sierra 2500
How much does the GMC Sierra 2500 cost?
The GMC Sierra 2500 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for the Sierra 2500 is $56,735, with pricing starting at $1.
What are some similar vehicles and competitors of the GMC Sierra 2500?
The GMC Sierra 2500 compares to and/or competes against the following vehicles:
What trim levels are available for the GMC Sierra 2500?
The GMC Sierra 2500 is available in the following trim levels:
What model years are available for the GMC Sierra 2500?
Available model years for GMC Sierra 2500 inventory range from 2001 to 2025.
*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
Similar Cars
-
Chevrolet Silverado 2500 for sale
9 Great Deals out of 53 listings starting at $10,977
-
Chevrolet Silverado 3500 for sale
2 Great Deals out of 20 listings starting at $11,999
-
GMC Sierra 3500 for sale
1 Great Deal out of 21 listings starting at $25,988
Compare the GMC Sierra 2500
Used GMC Sierra 2500 by city
-
GMC Sierra 2500 in Niwot, CO
8 Great Deals out of 61 listings starting at $9,997
-
GMC Sierra 2500 in Mead, CO
7 Great Deals out of 54 listings starting at $9,997
-
GMC Sierra 2500 in Firestone, CO
7 Great Deals out of 59 listings starting at $9,997
-
GMC Sierra 2500 in Frederick, CO
7 Great Deals out of 64 listings starting at $9,997
-
GMC Sierra 2500 in Gunbarrel, CO
9 Great Deals out of 60 listings starting at $9,997
-
GMC Sierra 2500 in Erie, CO
9 Great Deals out of 83 listings starting at $9,997
-
GMC Sierra 2500 in Lyons, CO
7 Great Deals out of 49 listings starting at $9,997
-
GMC Sierra 2500 in Berthoud, CO
7 Great Deals out of 51 listings starting at $9,997
-
GMC Sierra 2500 in Altona, CO
7 Great Deals out of 49 listings starting at $9,997
-
GMC Sierra 2500 in Dacono, CO
9 Great Deals out of 69 listings starting at $9,997
-
GMC Sierra 2500 in Lafayette, CO
9 Great Deals out of 72 listings starting at $9,997
-
GMC Sierra 2500 in Boulder, CO
9 Great Deals out of 70 listings starting at $9,997
GMC Sierra 2500 by trim
-
GMC Sierra 2500 Denali
20 listings starting at $35,999
Used GMC Sierra 2500 by body style
- ${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}
Certified cars are manufacturer warrantied and typically go through a rigorous multi-point inspection.
This car is likely to sell soon based on the price, features, and condition.
${award_blurb}
${award_two_blurb}