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Used
2021 GMC Sierra 3500 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
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
In a world of shady dealers and high prices Buerkle sales
In a world of shady dealers and high prices Buerkle sales is an oasis. They take care of their customers instead of wasting their time.
Truck is a Solid vehicle overall.
Has a really Big feel to it. I currently use mine to pull gooseneck trailer. I haven't had a load yet that I couldn't pull. The downsides to this truck is to me I feel it could get better fuel mileage. Also I had trouble with #4 injector...dealership replaced it. Now my AC doesn't work all the time. Although it sounds like it's blowing it isn't.
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
Very pleasant experience at Vera car dealership it was my
Very pleasant experience at Vera car dealership it was my first time there. Every one was so nice to us Mr.Kamel the saleperson was so friendly with us he made us fill at home it was nice doing business with him a very pleasant person to talk to my time at Vera Buick GMC was GREAT.
Love it.
I love the new features this truck offers. I would highly recommend this truck if your looking for a Diesel. I provides all the features and benefits you would want.
Used
2021 GMC Sierra 3500 SLE
Vehicle information
Features
Reviews
It was great working with David K.
It was great working with David K. He had a ton of information and new the santa fe and it's features very well. No pressure sales from him.
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
Our first visit.
Our first visit. Kevin the service manager was so helpful and Daniel our service writer was on top of all questions we had and our vehicle was done when promised.
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
Great deal from Coulter
Coulter dealerships have been very good to me with the vehicles I have bought from them in the past. Coulter Cadillac was the best experience yet. I got a great deal and I know it! The deal was mostly done on line and did not change the day the xt6 was picked up. This is not the usual dealership experience. No wonder Coulter has been around for 100 years. Thank you very much, Steve and Nancy
Used
2021 GMC Sierra 3500 AT4
Vehicle information
Features
Reviews
As always excellent experience, Molstead men are
As always excellent experience, Molstead men are professional and friendly, Jack helped me find a new vehicle after my 3 month old vehicle was totaled. Deb worked with me for the sale. Thank you
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
I love my Lexus, Maplewood has very attentive sales
I love my Lexus, Maplewood has very attentive sales people. I visited 4 times and every time they treated me very well, even though the first 3 times i wasn’t buying anything. I finally found my dream car. Couldn’t be happier. Courtney my sales rep was great, she even dropped my car off after the wrap was done. I highly recommend this dealership.
GMC Certified
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
They was very polite very prompt and pretty fast through
They was very polite very prompt and pretty fast through the process. I'd recommend anyone in my family or friends to go there to get a new car or used one
Used
2021 GMC Sierra 3500 AT4
Vehicle information
Features
Reviews
my experience with Paul was great, we test drove the 2020
my experience with Paul was great, we test drove the 2020 Mazda CX9 very nice vehicle, it was a very nice ride & Paul was very informative.
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
They were very courteous and helpful!
They were very courteous and helpful! They also gave me a great deal! I highly recommend!
Certified
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
I love your team, they are very professional and nice,
I love your team, they are very professional and nice, the dealer Mr. Tommy TSE help me a lot show me everything and taught me what I have to know, I appreciate what he did for me, thanks a lot.
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
This dealership doesn’t negotiate price.
This dealership doesn’t negotiate price. I randomly walked in one day and Michel helped me out, he sent me different car options over a few days and ultimately helped me purchase a great car. It was a quick and easy process which I appreciated and also a no pressure environment which was nice.
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
Fantastic Experience!
Had a pleasure doing business with Russell Westbrook CDJR for my new 2021 Dodge Challenger! Zaman, Moses, and Jay worked with me tirelessly to make sure I was happy with the car and our deal for it. This is the second vehicle I've bought from them and I'll definitely be back for a third in the future. Highly recommended!
Certified
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
Cameron came to house yesterday for a mobile service, as
Cameron came to house yesterday for a mobile service, as always he was a very knowledgeable professional. He explained what was needed and most important WHY!!! Parks Ford Mobile Service is a great addition to their service dept. I would also note that Donna back in the dealership is great keeping you informed on your appointment and on the day of the appointment the ETA.
Certified
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
I had an interaction with Mike regarding a Toyota Avalon.
I had an interaction with Mike regarding a Toyota Avalon. Mike was very friendly and knowledgeable about the car. I was impressed with the dealership. Unfortunately, the vehicle wasn't what I was looking gor.
Used
2021 GMC Sierra 3500 SLE
Vehicle information
Features
Reviews
Excellent service and work!
Excellent service and work! Highly recommended by so many people including myself. Very knowledgeable and professional from the parts department, service department and the certified mechanics!
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
My go to dealership !
I wouldn't go anywhere else ! Sales , finance and service are the best for miles around .
Used
2021 GMC Sierra 3500 AT4
Vehicle information
Features
Reviews
Worked with Jon!
Worked with Jon! He answered all my questions and made the whole process very efficient!
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Used
2021 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
New Car
Awesome dealership to work with. Really took the time to listen to our wants and needs.
GMC Sierra 3500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 3500 | $81,656 | 10 Good deals |
| 2025 GMC Sierra 3500 | $71,987 | 25 Great deals |
| 2024 GMC Sierra 3500 | $69,798 | 43 Great deals |
| 2023 GMC Sierra 3500 | $57,577 | 74 Great deals |
| 2022 GMC Sierra 3500 | $55,908 | 54 Great deals |
| 2020 GMC Sierra 3500 | $51,285 | 18 Great deals |
| 2019 GMC Sierra 3500 | $44,541 | 8 Great deals |
| 2018 GMC Sierra 3500 | $42,000 | 53 Good deals |
| 2017 GMC Sierra 3500 | $40,891 | 31 Good deals |
About the 2021 GMC Sierra 3500
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 2021 GMC Sierra 3500 cost?
The 2021 GMC Sierra 3500 price depends on several factors, including the trim level, optional features, mileage, vehicle history and location. The nationwide average price for a 2021 Sierra 3500 is $52,639, with pricing starting at $26,995.
Is the 2021 GMC Sierra 3500 reliable?
The 2021 GMC Sierra 3500 has an average reliability rating of 4 out of 5 according to Cars.com consumers. Find real-world reliability insights within consumer reviews from 2021 Sierra 3500 owners.
Is the 2021 GMC Sierra 3500 a good truck?
Below are the Cars.com consumer ratings for the 2021 GMC Sierra 3500.
- Comfort 4.5
- Interior 4.5
- Performance 5.0
- Value 4.0
- Exterior 4.5
- Reliability 4.0
100% of drivers recommend this car
- Comfort 4.5
- Interior 4.5
- Performance 5.0
- Value 4.0
- Exterior 4.5
- Reliability 4.0
AT4 (2 styles)
| Style | |
|---|---|
| 4WD Crew Cab 172" AT4 | 4WD Crew Cab 159" AT4 |
| Inventory price | |
| Starting at $60,500 | Starting at $60,300 |
| Combined MPG | |
| 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) |
Base (8 styles)
| Style | |||||||
|---|---|---|---|---|---|---|---|
| 2WD Double Cab 162" | 4WD Double Cab 162" | 4WD Crew Cab 172" | 4WD Crew Cab 159" | 2WD Crew Cab 159" | 2WD Crew Cab 172" | 4WD Reg Cab 142" | 2WD Reg Cab 142" |
| Inventory price | |||||||
| Starting at $40,200 | Starting at $43,000 | Starting at $44,800 | Starting at $44,600 | Starting at $41,800 | Starting at $42,000 | Starting at $40,200 | Starting at $37,400 |
| 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) |
Denali (2 styles)
| Style | |
|---|---|
| 4WD Crew Cab 159" Denali | 4WD Crew Cab 172" Denali |
| Inventory price | |
| Starting at $66,700 | Starting at $66,900 |
| Combined MPG | |
| 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) |
SLE (8 styles)
| Style | |||||||
|---|---|---|---|---|---|---|---|
| 2WD Double Cab 162" SLE | 4WD Double Cab 162" SLE | 4WD Reg Cab 142" SLE | 2WD Reg Cab 142" SLE | 4WD Crew Cab 159" SLE | 4WD Crew Cab 172" SLE | 2WD Crew Cab 159" SLE | 2WD Crew Cab 172" SLE |
| Inventory price | |||||||
| Starting at $45,000 | Starting at $47,800 | Starting at $45,600 | Starting at $42,800 | Starting at $49,400 | Starting at $49,600 | Starting at $46,600 | Starting at $46,800 |
| 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) |
SLT (4 styles)
| Style | |||
|---|---|---|---|
| 4WD Crew Cab 172" SLT | 2WD Crew Cab 159" SLT | 2WD Crew Cab 172" SLT | 4WD Crew Cab 159" SLT |
| Inventory price | |||
| Starting at $57,600 | Starting at $54,600 | Starting at $54,800 | Starting at $57,400 |
| Combined MPG | |||
| 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) |
*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.
Research the 2021 GMC Sierra 3500
Compare the 2021 GMC Sierra 3500
GMC Sierra 3500 trims
-
GMC Sierra 3500 2021 Denali
9 Great Deals out of 72 listings starting at $39,995
-
GMC Sierra 3500 2021 AT4
5 Great Deals out of 20 listings starting at $38,000
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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.
