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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
I like the personal stuff they do for me when I'm having
I like the personal stuff they do for me when I'm having an oil change or just servicing my maverick and f-150!!
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
The buying process was so easy.
The buying process was so easy. I was preapproved. We took care of most things over the phone. I came in. They had all the paperwork ready I signed and was out the door probably within 30 to 45 minutes
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
Had a very great buying experience with Christopher.
Had a very great buying experience with Christopher. Seamless process and the finance department was great also. Would recommend if looking for a used low mileage vehicle.
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 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 Denali
Vehicle information
Features
Reviews
I just bought a car for the second time at Romeo
I just bought a car for the second time at Romeo Chevrolet in Kingston. The first time was over 13 years ago. The experience was wonderful, and I had 13 wonderful years with my car. This time was even better, Ethan stayed with me, and personalized the experience, I felt like he totally understood my individual needs and concerns in finding a car. We were able to find a car that fit, and Malik was also patient and understanding, and got me a deal that I could afford. I am happy with the new car. I would recommend Romeo to anyone looking for a car!!!
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
Took good care of my concerns.
Took good care of my concerns. Corwin motors were courteous and kept me posted on status. I have only driven a few miles. If any concerns develop, I would get in touch with them.
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
It?
It?s always a pleasure working with Steve when my Cherokee needs service. He and the tech working on my vehicle always follow up and notify me of any other issues they may have found. Great service every time!
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 Base
Vehicle information
Features
Reviews
Just to let you guys know we’re very pleased with the
Just to let you guys know we’re very pleased with the F150 Larry. We got with 214. Everybody was so courteous and kind and helped us out to get this vehicle. I appreciate it very much. I tried to make out a survey and I couldn’t get on it so I’m just letting you know this way thank you very much. I will try to get you some more customers.
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 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.
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
The service was very good and the staff was knowledgeable
The service was very good and the staff was knowledgeable and friendly. I was notified when to come pick up my car. I was offered the opportunity to wait in their lounge where they provide a variety of food and drinks for their customers.
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
Sales, Service, Finance were all very prompt, pleasant
Sales, Service, Finance were all very prompt, pleasant and professional. Couldn’t have asked for a better experience.
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
Purchased a 2022 Altima from Sergio.
Purchased a 2022 Altima from Sergio. The experience was the best I've had shopping for a car. The whole team was very professional and courteous.
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 SLT
Vehicle information
Features
Reviews
Brett Ellis was great.
Brett Ellis was great...he went the extra mile to find the answers to any questions we had....not pushy at all! Great guy.
Used
2021 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
From the moment we walked in the dealership, our car
From the moment we walked in the dealership, our car purchase was a smooth and pleasant experience. This dealership is at the top of the game.
Used
2021 GMC Sierra 3500 AT4
Vehicle information
Features
Reviews
Mrs Mary was very helpful and professional.
Mrs Mary was very helpful and professional. With my busy schedule we did everything over the phone all I did was come in test drove the vehicle and sign the paperwork! Thanks!
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
This has been the best experience I have ever had at a
This has been the best experience I have ever had at a dealership. Denise at MTH went above and beyond to make sure we were taken care of. After purchasing my new car here, I don’t think I will ever go to another dealer.
GMC Sierra 3500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 3500 | $81,714 | 14 Good deals |
| 2025 GMC Sierra 3500 | $72,053 | 25 Great deals |
| 2024 GMC Sierra 3500 | $69,480 | 31 Great deals |
| 2023 GMC Sierra 3500 | $57,442 | 73 Great deals |
| 2022 GMC Sierra 3500 | $55,212 | 74 Great deals |
| 2020 GMC Sierra 3500 | $52,409 | 14 Great deals |
| 2019 GMC Sierra 3500 | $45,115 | 8 Great deals |
| 2018 GMC Sierra 3500 | $41,876 | 5 Great deals |
| 2017 GMC Sierra 3500 | $40,208 | 26 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 $52,944, with pricing starting at $24,835.
What are some similar vehicles and competitors of the 2021 GMC Sierra 3500?
The 2021 GMC Sierra 3500 compares to and/or competes against the following vehicles:
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.
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Research the 2021 GMC Sierra 3500
Compare the 2021 GMC Sierra 3500
GMC Sierra 3500 trims
-
GMC Sierra 3500 2021 Denali
7 Great Deals out of 69 listings starting at $45,873
2021 GMC Sierra 3500 by cab style
2021 GMC Sierra 3500 by fuel type
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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.