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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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Used
2020 GMC Sierra 3500 Base trucks
for sale
near me
- 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.






GMC Certified
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Transaction was great and employees were very patient and
Transaction was great and employees were very patient and professional! Thank you so very much!
Great Diesel truck when emission sensors work
Great vehicle for pulling my fifth wheel RV which weighs around 20,000 pounds. This dually truck pulls the RV very nicely without any significant strain on the engine or the transmission. However, like all of today's diesel engines there are 4 different system of emissions on this truck. Each one of these emission systems has sensors associated with them. If one of these sensors goes bad the truck will not perform optimally and sometimes it will go into the limp mode. Unfortunately this is not unique to GMC trucks. All manufacturers are battling this system. Also, I have had to take the truck to the dealer for computer upgrades in order to improve performance. I wish these upgrades could be performed on line (through wifi or with my own phone service). It sure would make things a lot simpler and improve the through put of the dealers who are already strained because of the limited number of available diesel mechanics.






Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Used car purchase
Jeff B was professional, personable, considerate and everyone from start to finish did an amazing job, I am excited to be in a newer vehicle and the ease of the buying process was wonderful, so far a great experience, thank you.
Great car for work!!
Comfort, ease of driving, style, convenient for work and we LOVE the tailgate! Great for towing our heavy fifth wheel and our dogs are riding in style!!






Vehicle information
Features
Reviews
Ask for Sally in sales and/or Grant in finance they will
Ask for Sally in sales and/or Grant in finance they will make you feel right at home and eager to listen and answer any questions that you may have. No one hates car shopping more than I do. BUT Nalley GMC made my car shopping a quick and painless experience without the feeling of being rushed. Everything was taken care of online and when I went in to sign and pickup my vehicle I was in and out in under an hour.
Great luxury ride with great pulling capabilities.
The Texas Edition combined with the X31 package and premium SLT makes a very nice combination. The Sierra 3500HD gives you a luxury interior and ride with all the capabilities of a great pulling truck. The Duramax is quiet yet powerful. It is no doubt the best of trucks for 2020.






Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Buying/selling a car is never fun but overall experience
Buying/selling a car is never fun but overall experience this time was good. Everyone was nice and the process was made easy.
Really impressed with the performance
Nicest truck I have ever owned preforms great with my RV Truck is comfortable and still works great when you need it to preform. Ride is nice and very roomy for all that want to travel with me






Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Great people to help in getting the car I wanted.
Great people to help in getting the car I wanted. The service to make things happen that insured trust and honesty was greatly appreciated. Thank You.
Good power very comfortable ride
Good power plenty of room the truck has all kind of new technology in it that helps with driving safety and with job performance Awesome






Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Bought this car sight unseen based on their Cars.
Bought this car sight unseen based on their Cars.com listing. No complications. I wired them the funds, they delivered the car (110mi) right to my door with a full tank of gas.






Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
In search of a low mileage, newer vehicle to replace our
In search of a low mileage, newer vehicle to replace our 8 year old pickup with a well-equipped replacement, we found an ultra-low mileage, full-featured high-efficiency pickup at Imperial. Firas Ektilah was friendly, professional and well-informed to answer our questions and provide a test drive and all of the vehicle information I needed to determine the vehicle and options are an exceptional value and We negotiated a vehicle price that was highly competitive and provided top value for our trade, which was previously purchased from Firas. We then completed the purchase and sale with Ohmar, who took the time to review the extended warrantee on our trade and provided as much of an extended warrantee on our purchase that was in our budget. The vehicle was then professionally cleaned inside-out and filled with fuel. This proved to be the easiest, most valued vehicle purchase experience we've ever experienced! We look forward to returning to Imperial Chevrolet to have the vehicle serviced, as they have provided exceptional service to all of our vehicles, including one we didn't originally purchase there. We've also been impressed with the competitive service rates and timely discounts Imperial Chevrolet has provided when service is due on any one of our vehicles. When it comes time to replace a vehicle, Imperial is the first and likely last stop we'll make!



Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Needed a new windshield for our Transit Van.
Needed a new windshield for our Transit Van. As always, a pleasure dealing with Brooke and Lori. Knowledgeable and great communication.






Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Keep the old girl running.
Bottom line cost hurt but with over 100,000 miles and a great service rep (Carry) I understand. Like the way you flag upcoming needed repairs. It allowed me time to budget them in. Five star all the way.






GMC Certified
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Very good service, Linda Kanally my service advisor was
Very good service, Linda Kanally my service advisor was very honest and fair. looking forward to her continued help.






Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Service Manager Doug Roof is just simply the best.
Service Manager Doug Roof is just simply the best. Always provides straight forward analysis and practical advice regarding any repair situation and has been doing so for me over the last 15 years. Thank you, Doug! And kudos to the big guy, Chris, too.


Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
A big thank you to Dom, Heather, and the financing team
A big thank you to Dom, Heather, and the financing team at Star Of Quakertown. They made my car buying experience just wonderful. They went above and beyond to get me my vehicle and I'm so happy with it. Even thought they were an hour and a half away from me, they were just awesome. Very welcoming and I definitely recommend them. I'd drive another hour and a half to get another vehicle from them. Great job guys! Keep up the great work!!


Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
I won't go anywhere else!
The staff here was amazing! Not pushy at all. They got me into a car I LOVE with zero credit! I was worried with the breaking down van I brought in and zero credit. I figured I'd be walking out of the dealership. These guys went above and beyond! Eric and Larry helped me find a cute affordable kia forte that I couldn't leave without, and i didn't. There was a tire pressure sensor on and they had all new tires put on before the paperwork was done. After leaving the dealership, over the next few days, I had questions, they were all answered to my satisfaction and very promptly. I recommend them to everyone looking for a new vehicle. Im ready for a bigger vehicle for my growing family and can't wait to see what I come home in!!! 10 out of 10 recommend. I take 5 star ratings seriously and they are difficult to earn by me. These guys get a 10 hands down
Vehicle information
Features
Reviews
Deruchette provided exceptional customer service🥇 She
Deruchette provided exceptional customer service🥇 She responded expediently to all my inquiries and offered to stay late to accommodate me after hours. She was extremely professional, knowledgeable, and provided me with all the information I requested expediently!⚡️ Jason was extremely accommodating in running numbers before my drive up. He listened to my objectives and was prepared with additional options upon my arrival. He was knowledgeable and thorough in explaining options and benefits, seamlessly! He was patient and helpful in finding a plan that fell within my perimeters. Duruchette and Jason are the dynamic power team !💪🏼🥇💪🏼 They are an asset to your team and represent the customer service that Murdock Chevrolet prides itself for!⭐️⭐️⭐️⭐️⭐️ I live in Salt Lake and I will definitely make the drive to Logan to do business specifically with Deruchette and Jason! I will also recommend them to my family and friends. Thanks again Deruchette and Jason for your education, knowledge, expertise, patience and exceptional customer service!💪🏼🥇💪🏼 I’m extremely grateful you took the time to work with me!🙏🏻 Thanks again! Wendy McMillan






Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
C. WATERS
Malcolm helped me and my family get into a new Tahoe. Excellent customer service payed attention to every detail and went above and beyond! I will be recommending him to all my friends.






Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Natalia was very helpful and professional in helping me
Natalia was very helpful and professional in helping me get the dream truck i always wanted






Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Love how the Service Department takes care of my car!
Love how the Service Department takes care of my car! They are fast and make suggestions that really help me plan to prevent issues. The staff is courteous and helpful, always checking in on me while I wait in their comfortable lounge and they keep me in the know if something comes up. I have had great experiences each time I have gone over the last two years for service. I will know where to shop when it’s time for a new car!






Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Jeff Collins took great care of me.
Jeff Collins took great care of me. Made sure I got what i wanted at a price I could live with
Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Our salesperson, Mitch, did an outstanding job finding
Our salesperson, Mitch, did an outstanding job finding the car we were looking for and setting us up with our new car. Mitch was happy to answer any questions or concerns we had about our purchase.





Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
People where friendly and helpful and I got a great deal,
People where friendly and helpful and I got a great deal, please stop over to Huffman's auto and get treated like a king.
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GMC Sierra 3500 prices by year
Model year | Prices from | Deals |
---|---|---|
2021 GMC Sierra 3500 Base | $13,795 | 16 Good deals |
About the 2020 GMC Sierra 3500 Base
Base shown (base trim).
- Seating
- 2
- Door count
- 2
- Drivetrain
- Rear-wheel drive
- Combined MPG
- 0
- Transmission
- 6-Speed A/T
- Engine
- 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)

How much does the 2020 GMC Sierra 3500 Base cost?
The 2020 GMC Sierra 3500 Base price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2020 Sierra 3500 Base is $47,979, with pricing starting at $33,995.
What are some similar vehicles and competitors of the 2020 GMC Sierra 3500 Base?
The 2020 GMC Sierra 3500 Base compares to and/or competes against the following vehicles:
Is the 2020 GMC Sierra 3500 Base reliable?
The 2020 GMC Sierra 3500 has an average reliability rating of 4.9 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2020 Sierra 3500 owners.
Is the 2020 GMC Sierra 3500 Base a good truck?
Below are the Cars.com consumer ratings for the 2020 GMC Sierra 3500.
- Comfort 4.9
- Interior 4.9
- Performance 4.9
- Value 4.7
- Exterior 5.0
- Reliability 4.9
100% of drivers recommend this car
- Comfort 4.9
- Interior 4.9
- Performance 4.9
- Value 4.7
- Exterior 5.0
- Reliability 4.9
*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 3500 trims
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GMC Sierra 3500 2020 Denali
13 Great Deals out of 103 listings starting at $40,995
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