Sierra 1500

AT4X

Spider

AWD4WD

6-Cylinder Turbo

Diesel

Onyx Black 2026 GMC Sierra 1500 AT4X 4WD 10-Speed Automatic 3.0L I6 10-Speed Automatic, 4WD, Obsidian Rush Leather.<br><br>GMC Dealership Serving Boulder, CO Drivers Mike Maroone GMC GMC Sales, Service, and Parts in Boulder, CO If you have been longing to get into a new GMC close to Boulder, CO, then right now is an ideal opportunity to find your next auto at a low cost, here at Mike Maroone GMC. Enjoy Free Delivery anywhere in Colorado. Our GMC Truck line is headed by the Sierra 1500, 2500 and 3500, each new GMC model can be found here at our Boulder, CO dealership. Discover your new GMC in Boulder now for a test spin of your dream car. Price includes: $1750 - Buick &amp; GMC Consumer Cash Program. Exp. 09/30/2025

New 2026 GMC Sierra 1500 AT4X w/ AT4X AEV Edition

New 2026 GMC Sierra 1500 AT4X w/ AT4X AEV Edition Boulder CO 80301

AT4X AEV Edition

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Automatic

Mike Maroone Buick GMC

Los Angeles

 for sale in Boulder, CO. Learn more about this vehicle.

New 2026 GMC Sierra 1500 AT4X w/ AT4X AEV Edition for sale in Boulder, CO 80301: Truck Details - 756731120 | Kelley Blue Book