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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 2500 Base 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 2500 Base
Vehicle information
Features
Reviews
Kate made the process easy and saved us time by sending
Kate made the process easy and saved us time by sending us the application online before we even went to the dealership. All questions and concerns were answered and we feel confident we made a good decision.
Beautiful truck
I love my 2021 GMC Denali 2500HD. I have gotten more complements on this truck than any other vehicle that I have owned. I get great highway fuel milage average 19-26mpg,which is great for a heavy duty truck!
Used
2021 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
Thanks John Lewis for a happy trucker
Looked at a truck we were interested in on a Sunday morning with John Lewis and he made the sale and us driving it off the lot in the same day!! Great service as always
Best truck I ever owned
Love my GMC. Owned a Chevy and this absolutely beats it hands down. Never had any issues. Inside is very comfortable and can't imagine driving anything else
Used
2021 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
GMC 2500 HD AT4
This is the first diesel I have owned. The power is amazing and I really like the room inside the cab. This truck is a beast... Love it!
Used
2021 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
I recently purchased a truck with Ben, and the experience
I recently purchased a truck with Ben, and the experience was excellent. He was highly professional, knowledgeable, and genuinely great to work with. I would absolutely recommend asking for Ben—he’s a fantastic salesman. Nathaniel Faulkner
Never had one. Always wanted one and love it.
I love my Denali. Beautiful truck inside out. When I drive down the road all heads turn. I couldn't have made a better choice. That's Cortez for you good service.
Used
2021 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
Very Quick and smooth process.
Very Quick and smooth process. Sale agent victor was really nice. Would definitely do business with them again! Thank you again!
Early to tell truck has less than 100 miles
Truck was bought specifically to our travel trailer. We have to wait for 1000 break in before we can tow the trailer. So far the truck is very quiet, smooth running, & comfortable to drive. We were pleasantly surprised at how much interior storage space is available. Having the bed steps before rear tires and in the bumper sides is very nice. Bed rails are even with my shoulders so the steps get used a lot.
Used
2021 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
I bought the perfect car for me.
I bought the perfect car for me. Mike was a great salesman and he'll be my go-to salesman from now on! Thank you!
Used
2021 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
Love the truck
Could not have been a less stress free experience . Jeremy Bracken should be the regional sales manager, training manager, don't lose him!
Used
2021 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
Great experience with Megan.
Great experience with Megan. She is an asset to the customer service experience. Great personality and thorough about how she handles clients and respectful of their time.
Used
2021 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
No hassle warranty work
I have had a couple warranty-covered issues with my otherwise-wonderful 2018 Pacifica. At J-Star, there was no hassle and they even noticed another warranty-covered item and took care of it for me.
Used
2021 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
Quick response to the initial online inquiry.
Quick response to the initial online inquiry. Appointment scheduled for test drive over the weekend. The dealership even kept the car for me to test drive even though a few other customers inquired about the vehicle prior to my test drive appointment. Experience at the dealership was quick and smooth. Met a couple of good individuals during the process.
Used
2021 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
Engine light came on, rough shifting, Adam in Service
Engine light came on, rough shifting, Adam in Service dept fit my truck in for diagnostics within a week. Tech found bad coil, replaced and repaired, also suggested new wires and battery was needing to be replace really low crank, all work completed and again on the road after 310,000 miles. I have had only good experiences with the service department staff and techs. Sometimes it cost some money but its a machine and if you take care or it, it will last.
Used
2021 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
Always fast and friendly service.
Always fast and friendly service. Customer pick up and delivery service was excellent. Thanks again for taking good care of our vehicles.
Used
2021 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
My experience with Blaise Alexander Ford was A++ from
My experience with Blaise Alexander Ford was A++ from start to finish. The team was very friendly and professional, the trade-in process was totally fair and gave me everything I wanted, and they followed up with additional support after the purchase. I recommend this dealership to anyone looking for a new or used vehicle. They were a real pleasure to work with.
Used
2021 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
Quick and painless.
Quick and painless. Everything went smoothly and I wasn’t in there all day Thanks
Used
2021 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
I bought a 2009 Toyota on Friday and the people at vitals
I bought a 2009 Toyota on Friday and the people at vitals were awesome people to deal with I would recommend them to anyone that wants to buy a vehicle
Used
2021 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
We bought a car from them on 8/20/25 and it was a great
We bought a car from them on 8/20/25 and it was a great experience. Jossue and Tim were Great people to work with. Definitely would do it again.
Used
2021 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
The car buying process was very smooth and easy.
The car buying process was very smooth and easy. All of our questions were answered and I couldn't be happier with my Murano. Randy is the best!! I would definitely recommend them to anyone looking for a vehicle.
Used
2021 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
They made sure every step was smooth, all questions were
They made sure every step was smooth, all questions were answered. Also, the vehicle was built (26 Tahoe) and completed early, less than 3 months. Completing the deal took under 4 hours and I drove off with the vehicle.
Used
2021 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
Everyone was very kind and personable!
Everyone was very kind and personable! Felt like buying from a family member. Couldn’t recommend them enough!
Used
2021 GMC Sierra 2500 Base
Vehicle information
Features
Reviews
So i didn't get the car i really still want it i keep
So i didn't get the car i really still want it i keep seeing it 😔😔 i can afford it but I never been without a job more than two years ....but 2 yrs ago I was hit by two vehicles on my job and hadn't worked since 😔 I'm wondering if I could put more money down could I possibly still get this car ....just a thought
GMC Sierra 2500 prices by year
| Model year | Average price | Deals |
|---|---|---|
| 2020 GMC Sierra 2500 Base | $33,411 | 17 Good deals |
| 2019 GMC Sierra 2500 Base | $30,917 | 14 Good deals |
About the 2021 GMC Sierra 2500 Base
Base shown.
- Seating
- 3
- 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 2500 Base cost?
The 2021 GMC Sierra 2500 Base price depends on several factors, including optional features, mileage, vehicle history and location. The nationwide average price for a 2021 Sierra 2500 Base is $39,012, with pricing starting at $25,889.
What are some similar vehicles and competitors of the 2021 GMC Sierra 2500 Base?
The 2021 GMC Sierra 2500 Base compares to and/or competes against the following vehicles:
Is the 2021 GMC Sierra 2500 Base reliable?
The 2021 GMC Sierra 2500 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 2500 owners.
75% of drivers recommend this car
- Comfort 4.7
- Interior 4.6
- Performance 4.3
- Value 3.9
- Exterior 4.6
- Reliability 4.0
Base (10 styles)
| Style | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 4WD Crew Cab 159" | 2WD Crew Cab 172" | 4WD Crew Cab 172" | 2WD Crew Cab 159" | 2WD Double Cab 162" | 4WD Double Cab 162" | 4WD Double Cab 149" | 2WD Double Cab 149" | 2WD Reg Cab 142" | 4WD Reg Cab 142" |
| Inventory price | |||||||||
| Starting at $43,400 | Starting at $40,800 | Starting at $43,600 | Starting at $40,600 | Starting at $39,000 | Starting at $41,800 | Starting at $41,600 | Starting at $38,800 | Starting at $36,200 | Starting at $39,000 |
| Combined MPG | |||||||||
| 0 | 0 | 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) | 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 2500 trims
-
GMC Sierra 2500 2021 Denali
14 Great Deals out of 190 listings starting at $34,494
-
GMC Sierra 2500 2021 AT4
4 Great Deals out of 102 listings starting at $32,292
-
GMC Sierra 2500 2021 SLE
11 Great Deals out of 43 listings starting at $32,477
-
GMC Sierra 2500 2021 SLT
5 Great Deals out of 32 listings starting at $36,490
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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.
