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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
North Brentwood, MD
- 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
The service team is the best I have encountered in the
The service team is the best I have encountered in the industry. They are true professionals and provide outstanding customer service.






New
2026 GMC Sierra 2500 AT4
Vehicle information
Features



New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Excellent communication and quick service.
Excellent communication and quick service. No surprise fees or up-charge pressure. So much better than another local dealership.

New
2026 GMC Sierra 2500 AT4
Vehicle information
Features

New
2026 GMC Sierra 2500 AT4
Vehicle information
Features



New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Good Svcs good repair, too expensive , good facilities
Good Svcs good repair, too expensive , good facilities good programming, both pre and during service??what else?.i ran out of words .:.:.:.;snuff enough shad



New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Donnavan did an outstanding job servicing my 2025 GMC
Donnavan did an outstanding job servicing my 2025 GMC Sierra. He was professional, efficient, and explained everything clearly. Excellent service experience — I highly recommend him!



New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Our salesman was Scott.
Our salesman was Scott. Extremely knowledgeable and helpful. Entire experience (bought a 2026 GMC Arcadia) at the dealership was excellent. We moved quickly through the process. Will go back for future vehicles.



New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
My husband and I were so pleased with our recent purchase
My husband and I were so pleased with our recent purchase of a new truck from Koons in Clarksville. Our sales person Jack was absolutely amazing. From pricing to just plain great customer service we were so pleased. No pressure just a great deal. Thanks Jack. Will definitely share our experience with others.






New
2026 GMC Sierra 2500 AT4
Vehicle information
Features

New
2026 GMC Sierra 2500 AT4
Vehicle information
Features

New
2026 GMC Sierra 2500 AT4
Vehicle information
Features

New
2026 GMC Sierra 2500 AT4
Vehicle information
Features

New
2026 GMC Sierra 2500 AT4
Vehicle information
Features

New
2026 GMC Sierra 2500 AT4
Vehicle information
Features

New
2026 GMC Sierra 2500 AT4
Vehicle information
Features

New
2026 GMC Sierra 2500 AT4
Vehicle information
Features

New
2026 GMC Sierra 2500 AT4
Vehicle information
Features

New
2026 GMC Sierra 2500 AT4
Vehicle information
Features

New
2026 GMC Sierra 2500 AT4
Vehicle information
Features
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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.