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The GMC Sierra 2500 Denail HD is our most powerful Duramax Diesel Ever.  Sierra 2500 Denali HD offers functional hood scoop on Duramax-equipped models to provide cooler airflow and contribute to the increased HP rating of the engine. Sierra Denali HD comes with premium interior along with signature Denali accents and advanced towing technologies giving you the confidence to control heavy loads.

Discover the 2018 Sierra 2500 Denali HD pickup truck, featuring our most powerful Duramax diesel ever, premium appointments and advanced technologies.