The Sinister Diesel Windshield Washer Fluid Cap is a direct-fit replacement designed specifically for Ford Powerstroke 6.0L trucks. Made from durable, corrosion-resistant materials, this upgraded cap provides a secure seal to help keep washer fluid clean and free of contaminants, while adding a finished look under the hood.

Easy to install with no tools or modifications required, this washer fluid cap is a simple, affordable way to improve reliability and appearance on your Powerstroke’s washer system.