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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
Instant response to my inquiry from Kristen.
Instant response to my inquiry from Kristen. Didn't even visit this dealer because they were over priced on a car I wanted by 3 to 6 thousand dollars as compared to other dealers.
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
Nathan the salesman was great to work with.
Nathan the salesman was great to work with. Finance through them was fast and easy. Great customer service. Would highly recommend them if you're looking for new or used vehicle
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
We worked with Serjio Verduzco at Blade Chevrolet and
We worked with Serjio Verduzco at Blade Chevrolet and purchased a 2025 Equinox. I owned an Outback and was looking for a more comfortable car. Serjio was extremely helpful and low pressure in approach. He worked with me on pricing until we had a deal both of us were comfortable with. He was very accessible, knowledgeable and inspired confidence that I had made the right decision. At signing, Steve was also easy to work with and accommodating. I highly recommend Serjio Verduzco and Blade Chevrolet for your next auto purchase. And I love my Equinox!
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
I just want to say that I had a very professional
I just want to say that I had a very professional customer service experience with Ryan Ramdass and wanted to write a review to express my gratitude. Ryan and I had an issue that we had to address and resolve over the phone and he handled it very professional and cautiously. I would recommend Ryan to anyone who is searching for their next Chevrolet! He is a top notch salesman in my book. I his straight forward and to the point and says it like it is and I appreciate that about him and our conversation. Ask for Ryan when you look to purchase your next car he will not let you down. Aaron...
Used
2021 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Kenmanuel did a great job working on getting me the
Kenmanuel did a great job working on getting me the truck. He explained everything to me and made sure I understood what was going on.
Used
2021 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Everyone from Joel in sales to Zach in finance was
Everyone from Joel in sales to Zach in finance was amazing to work with. They made sure I understood and was comfortable every step of the process of buying our new car.
Used
2021 GMC Sierra 3500 SLT
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Features
Reviews
Great dealership!
Scott Litton was very helpful, knowledgeable and efficient. This was the best truck buying experience we have had. Finance was a breeze. I would definitely recommend this dealership.
Used
2021 GMC Sierra 3500 SLE
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Features
Reviews
Wonderful experience.
Wonderful experience. The used car was just too expensive for me right now. Josh and Karla have been very professional, cordial and thorough. I’ll be back!!
GMC Certified
2021 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
I and my wife have always had EXCELLENT service and
I and my wife have always had EXCELLENT service and respect for Andrew and his team members. We first got introduced to Spitzer Northfield by Darrell Zasnuskie a salesman and friend. Andrew was doing service appointments and repairs when we first met him some 12-13 years ago. We had issues with our 2010 Buick that he painstakingly birddogged and resolved our vehicles issue, after a ridiculous amount of effort corrected our issue. Moving forward Andrew and his Service/Mechanical team have been GREAT partners. I have been Vice President of several companies. People skills and compassion is something that is hard to teach. BUT comes natural to people that really want to take care of each individual they encounter. If I could CLON the passion and real concern that Andrew and his team have for customers it would be incredible. Thank you for all that Spitzer NORTHFIELD and the service team does for me and my family. Stay Well God Bless... Chuck Montgomery
Used
2021 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
I was initially delighted.
I was initially delighted. The sales staff was awesome and got me into a dream car. Three days after bringing my Redeye home I noticed a small puddle of antifreeze. Two days later the engine light comes on so I had it towed back to the dealership and told them to keep it until they get it right. This is day five. I would still recommend this dealership as long as you buy new. Evidently I bought a Frankenstein. I just hope that this is a one off and am able to enjoy the car for years to come.
Used
2021 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Excellent customer experience and great staff.
Excellent customer experience and great staff. They know their stuff! Professional and kind. The sales staff went out of their way to solve issues and create a solution that was acceptable for the buyer with a positive happy resolution.
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
Joe Andrade, worked to get me a deal that fit my budget,
Joe Andrade, worked to get me a deal that fit my budget, keeping me in the Crosstrek, I have been a Subaru customer since 2014 back NYC, Joe and the staff at your dealership always me feel welcome, thank you.
Used
2021 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
They gave me some cookies and were very nice.
They gave me some cookies and were very nice. And the car was super cool.
Used
2021 GMC Sierra 3500 AT4
Vehicle information
Features
Reviews
The internet manager and staff did a wonderful job in
The internet manager and staff did a wonderful job in setting up appointments, finding the right car and communicating.
GMC Certified
2021 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Rodney helped me in the service department.
Rodney helped me in the service department. He was absolutely phenomenal. He was professional. He was kind and he was quick. He is an asset to your company. I would keep him if I were you.
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
Very good, no pressure.
Very good, no pressure. Very good salesman Experience was very good. I would advise people in my life if they need a new car go to Tim Lally Chevrolet in Cleveland, Ohio.
Used
2021 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
I?ve purchased 2 vehicles here and it?s the only place I
I?ve purchased 2 vehicles here and it?s the only place I will have my vehicles serviced. The service department is quick and thorough and the sales department are always a pleasure to deal with. So happy I found this dealership- it?s the only place I will use in the future. Thank you Steve and Mauricio in sales and thank you Derrick in service!
Used
2021 GMC Sierra 3500 Denali
Vehicle information
Features
Reviews
This was the easiest and best car buying experience i
This was the easiest and best car buying experience i have ever had. Tanner was attentive to our needs and made everything as easy as possible.
Used
2021 GMC Sierra 3500 Base
Vehicle information
Features
Reviews
Had service on my corvette the price was reasonable and
Had service on my corvette the price was reasonable and the service was outstanding. I will bring my chevys there always no need to shop around. My service advisor was Sam as good as it gets.
Used
2021 GMC Sierra 3500 Denali
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Reviews
Keri is OUTSTANDING.
Keri is OUTSTANDING. Listens to my requests, provides me with options, and then enacts my decisions. Does not change the plan without getting my approval first.
GMC Sierra 3500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 3500 | $85,156 | |
| 2025 GMC Sierra 3500 | $76,512 | 47 Great deals |
| 2024 GMC Sierra 3500 | $70,441 | 51 Great deals |
| 2023 GMC Sierra 3500 | $61,481 | 39 Great deals |
| 2022 GMC Sierra 3500 | $58,308 | 46 Great deals |
| 2020 GMC Sierra 3500 | $54,012 | 19 Great deals |
| 2019 GMC Sierra 3500 | $46,723 | 33 Good deals |
| 2018 GMC Sierra 3500 | $48,110 | 33 Good deals |
| 2017 GMC Sierra 3500 | $42,177 | 6 Great 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 $54,955, with pricing starting at $13,795.
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
17 Great Deals out of 88 listings starting at $44,919
-
GMC Sierra 3500 2021 Base
10 Great Deals out of 34 listings starting at $13,795
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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.
