Sierra 2500

AT4X

Spider

AWD4WD

8-Cylinder Turbo

Diesel

2026 GMC Sierra 2500 AT4X 4WD ? V8 6.6L Diesel ? Sidney, MT ? Best Price Discover the power and capability of this 2026 GMC Sierra 2500 AT4X, now available in Sidney, MT. Equipped with a robust V8 6.6L diesel engine and full-time 4WD, this heavy-duty pickup delivers exceptional towing capacity, confident off-road performance, and impressive torque for demanding work or weekend adventures. The AT4X trim adds rugged suspension, off-road-tuned components, and premium comfort features for a balanced blend of capability and refinement. Key features: - V8 6.6L turbo diesel for maximum torque and towing - 4WD with enhanced off-road traction and stability - AT4X off-road package: upgraded shocks, skid plates, and all-terrain tires - Spacious, tech-forward cabin with premium materials and driver-assist systems - Advanced towing technology: integrated trailer brake controller and trailer sway control Located in Sidney, MT, this 2026 GMC Sierra 2500 AT4X is competitively priced and advertised as the best price available ? an exceptional value for buyers seeking power, durability, and comfort. Contact our Sidney showroom to schedule a test drive or request more details about this heavy-duty GMC pickup. Act now to secure this powerful 4WD diesel truck at the best price in the region.

New 2026 GMC Sierra 2500 AT4X

New 2026 GMC Sierra 2500 AT4X Sidney MT 59270

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 for sale near you in Sidney, MT. Get more information and car pricing for this vehicle on Autotrader.

New 2026 GMC Sierra 2500 AT4X for sale in Sidney, MT 59270: Truck Details - 772720471 - Autotrader

New 2026 GMC Sierra 2500 AT4X

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