2026 GMC Sierra HD AT4/AT4X for Sale in Cartersville, GA
Why should you buy a 2026 GMC Sierra HD AT4/AT4X in Cartersville, GA?
The 2026 GMC Sierra HD AT4/AT4X for sale at Welborn GMC Of Cartersville in Cartersville, GA – near Acworth, Rome, and Adairsville – treats a 20,000-pound load like a light snack and looks good doing it.
The 2026 GMC Sierra HD AT4/AT4X: What We Like
Under the hood, you’ve got choices. The standard 6.6L V8 gas engine delivers a stout 401 hp, but if you’re serious about towing, the available 6.6L Duramax® turbo diesel is the undisputed heavyweight champion. With 975 lb-ft of torque and an Allison® 10-speed automatic transmission, you can tow up to 20,000 pounds on the 3500 trims1.
The AT4 comes ready for the trail with Rancho® shocks and skid plates. However, if you want to turn Adairsville trails into your personal playground, the AT4X steps it up with a factory-installed 1.5-inch lift and Multimatic™ DSSV dampers. These dampers provide precision handling off-road without making the drive back to Cartersville feel like you’re riding in a paint shaker.
Utility isn’t an afterthought here. The GMC MultiPro Tailgate is a six-function Swiss Army knife for your truck bed, making loading cargo or climbing into the bed easier than ever. With 12 fixed cargo tie-downs rated at 500 pounds each, your gear stays put, even when backroads get bumpy.
Why Buy a 2026 GMC Sierra HD AT4/AT4X NOW from Welborn GMC Of Cartersville?
Right now is the best time to buy a 2026 GMC Sierra HD AT4/AT4X from Welborn GMC Of Cartersville because we have the lowest prices on new GMC vehicles. Browse our new GMC inventory right now and contact us ASAP when you’re ready to take a test drive.
1Max towing varies depending on trim level and proper equipment. Maximum trailering ratings are intended for comparison purposes only. Before you buy a vehicle or use it for trailering, carefully review the trailering section of the Owner’s Manual. The trailering capacity of your specific vehicle may vary. The weight of passengers, cargo, and options or accessories may reduce the amount you can trailer.
Features
Design
AT4X EXTERIOR
35″ Goodyear Territory MT tires and a factory-installed 1.5″ suspension lift on Sierra HD AT4X and AT4X AEV Edition provide serious traction and clearance.
Performance
AT4 OFF-ROAD READINESS
The AT4 off-road work truck features an off-road suspension with twin-tube Rancho shocks, skid plates and Hill Descent Control, which uses antilock braking to help you maintain control.
Technology
12.3″ DIAGONAL COLOR DRIVER INFORMATION CENTER
Sierra HD features a driver-focused display that puts information front, center and easily visible in high-resolution clarity.
Safety
SIERRA HD PRO SAFETY*
STANDARD ON AT4 | AT4X
- Forward Collision Alert
- Following Distance Indicator
- Front Pedestrian Braking
- IntelliBeam
- Lane Keep Assist with Lane Departure Warning
- Automatic Emergency Braking
- Buckle to Drive
*Safety or driver assistance features are no substitute for the driver’s responsibility to operate the vehicle in a safe manner. The driver should remain attentive to traffic, surroundings and road conditions at all times. Visibility, weather, and road conditions may affect feature performance. Read the vehicle Owner’s Manual for more important feature limitations and information.