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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 SLT 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.
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 ?
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 SLT
Vehicle information
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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.
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 SLT
Vehicle information
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.
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 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 SLT
Vehicle information
Features
Reviews
everything went well.
everything went well. truck was repaired and runs well. tech found the thermostat was faulty and replaced it. I was charged $620, it seemed high to me.
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.
Used
2021 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
I would definitely recommend Tim Short Ford.
I would definitely recommend Tim Short Ford. They were easy to deal with and knowledgeable. It was a quick, painless process. Very satisfied with the experience.
Used
2021 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
Initially my wife and I had just planned on purchasing a
Initially my wife and I had just planned on purchasing a car for her since the lease on her current vehicle was due to expire. Chris Warr was the sales consultant who helped us when we arrived to test drive a few different models. My wife wasn?t really sure if she wanted an SUv or a truck. Chris was patient and friendly. He made us feel comfortable and not rushed to make a decision. He even went as far to take us to see a model that was being displayed for a car show so my wife could see all of her options. Ultimately she purchased a 2026 Terrain AT4. Every one we encountered was friendly, helpful and answered our questions and made the process of purchasing a car simple and as stress free as possible. I would like to mention Ben Gallegos for helping us with the additional accessories my wife wanted. Marian Ciubotaru for walking us through the financial side, he answered all of our questions and took the time to make sure we were clear on the paperwork and pricing. Frank Pereira was our initial contact when we scheduled our appointment. He was friendly, listened to our needs and stayed in contact through the entire process. We are definitely happy with our interactions, so much that I had an appointment the following day to purchase a Ford Bronco for myself and ended up canceling my appointment and purchasing a Canyon AT4X the following day. So 2 car sales in 2 days. All due to the treatment we received and to be clear feeling comfortable and not being bombarded with a heavy hand to make a decision until we were ready. We also believe we received a fair deal. In addition, I was not happy with the rims on the truck which was almost a deal breaker for me. Purely because I had a vision of what I wanted. Ben, Frank and Chris worked to find me options and Ben found the exact rims I was looking to purchase. We are taking both cars in on Friday for the accessories and they even made sure we have a car to drive while our new cars are being completed. We are grateful and not only will we be buyers in the future we will be sure to share our experience with our friends and family.
Used
2021 GMC Sierra 3500 SLT
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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 SLT
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Features
Reviews
I I I I I I I I I I I I I I I I I I I I I I I I I I I I
I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I
Used
2021 GMC Sierra 3500 SLT
Vehicle information
Features
Reviews
Rocky was very attentive to my concerns and explained
Rocky was very attentive to my concerns and explained everything with me thoroughly regarding future service. However with the oil change service they should wash your car. They provide that service at other dealerships.
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2023 GMC Sierra 3500 SLT
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GMC Sierra 3500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2026 GMC Sierra 3500 SLT | 3 Good deals | |
| 2025 GMC Sierra 3500 SLT | $67,513 | 8 Good deals |
| 2024 GMC Sierra 3500 SLT | $62,073 | 6 Great deals |
| 2023 GMC Sierra 3500 SLT | $54,822 | 11 Great deals |
| 2022 GMC Sierra 3500 SLT | $52,229 | 5 Great deals |
About the 2021 GMC Sierra 3500 SLT
SLT shown.
- Seating
- 5
- Door count
- 4
- 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 SLT cost?
The 2021 GMC Sierra 3500 SLT price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2021 Sierra 3500 SLT is $52,840, with pricing starting at $44,790.
What are some similar vehicles and competitors of the 2021 GMC Sierra 3500 SLT?
The 2021 GMC Sierra 3500 SLT compares to and/or competes against the following vehicles:
Is the 2021 GMC Sierra 3500 SLT 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.
100% of drivers recommend this car
- Comfort 4.5
- Interior 4.5
- Performance 5.0
- Value 4.0
- Exterior 4.5
- Reliability 4.0
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.
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.
