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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
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 AT4
Vehicle information
Features
Reviews
Mike Boger at Corwin really went out of his way for me.
Mike Boger at Corwin really went out of his way for me. He messaged me about a trade in he had gotten and scheduled a time for me to look at it and test drive it. I went in on a Saturday afternoon not sure I would be approved for the vehicle or not. Went on a test drive and fell in love with the car. Mike never did the pushy salesman pitch. He sat with me while I was making the decision and he even was able to get the payment lower. He also went above and beyond and filled my gas tank and rewashed my car after the test drive.
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
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.
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 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!
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.
Used
2021 GMC Sierra 3500 AT4
Vehicle information
Features
Reviews
Excellent service.
Honestly I was starting to feel Very overwhelmed for a time during the price/payment discussions, but Chris and his team were very helpful and willing to work with me and I ended up with a 2019 Ford Escape that I feel very comfortable in.
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
The entire process was smooth, efficient and extremely
The entire process was smooth, efficient and extremely pleasant. No pressure and no surprises and the entire team was very friendly and helpful. An excellent experience in every way.
Vehicle information
Features
Reviews
Fantastic dealership and 1st class sales rep in Caleb!
Fantastic dealership and 1st class sales rep in Caleb!!! A large selection to choose from. Well manage clean store. Everyone is friendly and welcoming. It?s like a candy store ?
Used
2021 GMC Sierra 3500 AT4
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Reviews
All my vehicles have been purchased from Henry Brown GMC
All my vehicles have been purchased from Henry Brown GMC for past 15 years. I have always enjoyed the professionalism and friendliness from the staff.
Used
2021 GMC Sierra 3500 Denali
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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
We really appreciated how dedicated the staff at Huntley
We really appreciated how dedicated the staff at Huntley Ford were. We spoke on the phone and visited to check out a few vehicles with Daniel. He was very patient and wonderful to work with. Although we didn't purchase a car during our visit, we would recommend that anyone visits the dealer for a great experience.
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
Austin was a great help through the whole process and
Austin was a great help through the whole process and made everything run fluid and smooth. Treated my car like it was his own or a car he was buying. It was almost like he was buying it with me.
Used
2021 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
2019 Nissan Kicks SV - NorthHills
All I can say is - AWESOME!!! easy to talk with, super accommodating, you won't have a hard time cause they will definitely help you in any situation you have. Special thanks to the following people. Eli Jamal, Angad Cchina, and Elizabeth Garcia. You are all the best!!! They professionally assist us and tell us everything that we need to know. If your planning to visit this BMW Bakersfield branch I recommend looking for these people to assist you.
Used
2021 GMC Sierra 3500 SLT
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Features
Reviews
Matthew Kennedy was my salesman and did an excellent job
Matthew Kennedy was my salesman and did an excellent job making sure I was getting a car that's right for me. Best car salesman I've ever worked with. The facility was very clean and everyone was very friendly. Thanks for the great experience.
Certified
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
Knowledgeable, easy process, paperwork was quick to
Knowledgeable, easy process, paperwork was quick to complete. Would recommend to anyone buying a car in the area. Wasn?t pushy and wanted to make sure I got everything I was looking for in the car I purchased
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
Lalo was very friendly and very helpful.
Lalo was very friendly and very helpful. Made the whole experience a breeze and explained everything very well. Would shop with him again. 5 stars satisfaction.
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
Very good our salesman was excellent.
Very good our salesman was excellent. Ed was very good. He was very informative and a big help with the purchase. Finance department was also very helpful.
Used
2021 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
I requested info regarding a used car.
I requested info regarding a used car. The salesperson was honest, upfront and I believe trustworthy
Used
2021 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Had a vehicle give me so trouble a month after I bought
Had a vehicle give me so trouble a month after I bought it , had it serviced in Burton Chevy and Adam really went above and beyond for me and Brandon made it happen ! Thank you for ur help it’s much appreciated!!
Used
2021 GMC Sierra 3500 SLE
Vehicle information
Features
Reviews
Juan was very helpful and was able to get my car serviced
Juan was very helpful and was able to get my car serviced quickly. The service department always goes above and beyond. Thank you to John for scheduling me last minute before a trip.
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!
GMC Sierra 3500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 3500 | $84,101 | 8 Good deals |
| 2025 GMC Sierra 3500 | $72,670 | 26 Great deals |
| 2024 GMC Sierra 3500 | $68,800 | 47 Great deals |
| 2023 GMC Sierra 3500 | $57,878 | 86 Great deals |
| 2022 GMC Sierra 3500 | $55,483 | 59 Great deals |
| 2020 GMC Sierra 3500 | $50,803 | 20 Great deals |
| 2019 GMC Sierra 3500 | $44,340 | 10 Great deals |
| 2018 GMC Sierra 3500 | $44,437 | 8 Great deals |
| 2017 GMC Sierra 3500 | $39,449 | 24 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 $52,366, with pricing starting at $28,994.
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
11 Great Deals out of 93 listings starting at $36,000
-
GMC Sierra 3500 2021 AT4
3 Great Deals out of 24 listings starting at $39,000
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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.
