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
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.






Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Sales process was very easy and quick.
Sales process was very easy and quick. Sales, financing and service/parts department were all knowledgeable and helpful.
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
Jenny Noel was amazing, she was able to meet not only my
Jenny Noel was amazing, she was able to meet not only my needs, but my wants and much more. We were extremely satisfied. 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!!






Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Easy to work with and I got a great deal.
Easy to work with and I got a great deal. Thank you again Mounce team
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
Juan was the best!
Juan was the best! Honest no pressure. Best experience of buying a car ever! Recommended by my neighbor everything and more that he said about Juan.
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
Car lease
Marty Budd and Chuck Buchner are the best. I was stressed and nervous having to do this almost on my own and they helped through the car turn in, and a new lease. So professional. Known them both for years and they never let me down. They have helped my daughter and granddaughter.
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
Very pleasant experience!
Very pleasant experience! Family has purchased vehicles from Terryville Chevrolet for a very long time and never had any problems. They were very helpful, very professional, and extremely kind. Will buy another.






Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Rafeal was my contact there and he was great.
Rafeal was my contact there and he was great. He went above and beyond to communicate share photos and video and was very transparent. As a matter of fact the whole process and everyone was easy to work with. Not the dealer where sale and sale manager go back and forth to do some crazy negotiating. Open transparent and fair dealing. Rafeal was an advocate throughout and in and out with anew car well less than an hr after trade in paperwork






GMC Certified
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
My gmc service
Courteous service and a capable repair staff. Even an around town vehicle if you are waiting.






GMC Certified
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Corey was great!
Corey was great! He clearly explained the issues and my options to ensure I made an informed decision...Thanks Corey!






Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
New 2024 GMC AT4
It was a great experience. I would definitely buy from them again.






Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
used car
very pleasant sales people bought a used car and love the car was beyond my expectations i would recommend them highly yes i am well pleased






Used
2020 GMC Sierra 3500 Base
Vehicle information
Features






Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Don't be fooled by just low prices - they all pay the
Don't be fooled by just low prices - they all pay the same for vehicles. These guys know how to order new trucks with the right packages that won't cost you an extra arm and a leg. Save thousands by knowing how to order the right option packages on your next vehicle. Some dealers don't know how and you either get a truck with too many stupid options or not enough.



Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Over-priced car.
Over-priced car. Sales person very persistent. Very far away from my residence. Not sure if I am interested or not. Have owned three other Mustangs already.
Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Great people were very knowledgeable about the vehicle
Great people were very knowledgeable about the vehicle and helped with the buying of it.






Vehicle information
Features
Reviews
I recently purchased a new vehicle from West Metro Buick
I recently purchased a new vehicle from West Metro Buick and Jake, salesman, was very knowledgeable and helpful throughout the process. He never pressured me making buying a new car more enjoyable. Ryan, in Finance, was also great to work with. I felt I was treated with respect and honesty! Everyone I talked to, were very friendly. Great place to do business!!!






Vehicle information
Features
Reviews
I just purchase a car from these guys.
I just purchase a car from these guys. From the moment I called, they had the car pulled up front. To the test drive with Jose'. Very easy person to talk to. To the credit manager, office manager, to the owner. They were all easy to work with. I have never had a more comfortable experience puchasing a car. Just bring your info with you, they even transfered a tag right then in there. I was looking at a few other dealers before going here. I'm sorry I waisted my time with the others. I would tell everyone to go here. Best experience ever!

Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Great service, facilities and pricing.
Great service, facilities and pricing. I have used these folks for eight years now, and I am very happy with the services provided by them.
Used
2020 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Excellent Customer Service
Ashton my sales person was excellent with customer service, helping me order the perfect MINI for me and being responsive to my questions. Sam the manager was a pleasure to meet and deal with as well. I felt like we were all on the same team meeting the needs that I had. They were fantastic to work with and I love my MINI!!
There are 20 matching cars close to your year range.






Vehicle information
Features






Vehicle information
Features






Used
2021 GMC Sierra 3500 Base
Vehicle information
Features






Used
2019 GMC Sierra 3500 Base
Vehicle information
Features






Used
2021 GMC Sierra 3500 Base
Vehicle information
Features






Used
2021 GMC Sierra 3500 Base
Vehicle information
Features






Used
2021 GMC Sierra 3500 Base
Vehicle information
Features






Used
2021 GMC Sierra 3500 Base
Vehicle information
Features






Used
2018 GMC Sierra 3500 Base
Vehicle information
Features






Used
2021 GMC Sierra 3500 Base
Vehicle information
Features






Used
2021 GMC Sierra 3500 Base
Vehicle information
Features






Used
2021 GMC Sierra 3500 Base
Vehicle information
Features






Used
2021 GMC Sierra 3500 Base
Vehicle information
Features






Used
2019 GMC Sierra 3500 Base
Vehicle information
Features






Used
2018 GMC Sierra 3500 Base
Vehicle information
Features






Used
2021 GMC Sierra 3500 Base
Vehicle information
Features






Used
2021 GMC Sierra 3500 Base
Vehicle information
Features






Used
2018 GMC Sierra 3500 Base
Vehicle information
Features






Used
2018 GMC Sierra 3500 Base
Vehicle information
Features






Used
2021 GMC Sierra 3500 Base
Vehicle information
Features
-
Prev - 1
-
Next
GMC Sierra 3500 prices by year
Model year | Prices from | Deals |
---|---|---|
2021 GMC Sierra 3500 Base | $13,795 | 6 Great deals |
About the 2020 GMC Sierra 3500 Base
Base shown.
- 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 $52,037, with pricing starting at $36,995.
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.
100% of drivers recommend this car
- Comfort 4.9
- Interior 4.9
- Performance 4.9
- Value 4.7
- Exterior 5.0
- Reliability 4.9
Base (8 styles)
Style | |||||||
---|---|---|---|---|---|---|---|
2WD Reg Cab 142" | 4WD Reg Cab 142" | 2WD Double Cab 162" | 4WD Double Cab 162" | 4WD Crew Cab 159" | 2WD Crew Cab 172" | 2WD Crew Cab 159" | 4WD Crew Cab 172" |
Inventory price | |||||||
Starting at $37,000 | Starting at $39,800 | Starting at $39,800 | Starting at $42,600 | Starting at $44,200 | Starting at $41,600 | Starting at $41,400 | Starting at $44,400 |
Combined MPG | |||||||
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Engine | |||||||
445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 445.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 445.0-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.
GMC Sierra 3500 trims
-
GMC Sierra 3500 2020 Denali
16 Great Deals out of 101 listings starting at $37,899
- ${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.