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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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New and used
2026 GMC Sierra 2500 AT4 trucks
for sale
near
Bay St. Louis, MS
- 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.
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Vehicle maintenance
The staff here is EXTREMELY courteous and they are diligent among all things. They are knowledgeable and they Carefully explain everything to their customers!
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Bought New GMC Canyon AT4
Visited local dealers that included Ford, Chevy, Nissan and test drove vehicles at each but was surprised by the GMC Canyon. I originally wanted an F150 but price, size and quality issues made me rethink that purchase. I test drove the only available Ranger within 100 miles and did not like it as much as the Canyon. Staff was straight forward. No back and forth. Easiest car buying experience I've ever had.
New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
I like Mandal Buick/GMC!
I like Mandal Buick/GMC! Jamie has been my service representative since buying my Yukon in 2018! Dang guys! It’s been 6 years and I’m still coming back for service. I also bring my wife’s Yukon in for service here. I highly recommend Mandal!
Vehicle information
Features
Reviews
Lots of inventory, clean n comfortable showroom, salesmen
Lots of inventory, clean n comfortable showroom, salesmen are personable, efficient, knowledgeable, n answered all inquiries
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Features
Reviews
Great follow up scheduling went perfect.
Great follow up scheduling went perfect. Repairs were done quickly and it looks awesome.
Vehicle information
Features
Reviews
Jacob was AWESOME made sure my problem was taken care of!
Jacob was AWESOME made sure my problem was taken care of! Good job Jacob !
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Features
Reviews
took a little while to locate the part but once it came
took a little while to locate the part but once it came in, installation was done to my satisfaction.
Vehicle information
Features
Reviews
Love Jacob!
Love Jacob! He might be my favorite person at the whole dealership. As soon as he sees me drive up, he walks up with a smile on his face.
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About the 2026 GMC Sierra 2500 AT4
AT4 shown.
- Seating
- 5
- Door count
- 4
- Drivetrain
- Four Wheel Drive
- Combined MPG
- 0
- Transmission
- 10-Speed A/T
- Engine
- 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel)
How much does the 2026 GMC Sierra 2500 AT4 cost?
The 2026 GMC Sierra 2500 AT4 price depends on optional features. Prices typically start at $71,600.
What are some similar vehicles and competitors of the 2026 GMC Sierra 2500 AT4?
The 2026 GMC Sierra 2500 AT4 compares to and/or competes against the following vehicles:
AT4 (2 styles)
| Style | |
|---|---|
| 4WD Crew Cab 172" AT4 | 4WD Crew Cab 159" AT4 |
| Inventory price | |
| Starting at $71,800 | Starting at $71,600 |
| Combined MPG | |
| 0 | 0 |
| Engine | |
| 470.0-hp, 6.6-liter, 8 Cylinder Engine (Diesel Fuel) | 470.0-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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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.
