8QT218M
Washer Bottle Cap
Mack

The washer bottle cap is a vital component that seals the windshield washer fluid reservoir, preventing contamination and leaks. Its secure fit ensures that the washer fluid remains clean and readily available for windshield cleaning, which is crucial for driver visibility and safety. Made from durable materials, the cap resists cracking and corrosion, even in extreme weather conditions. Easy to install and remove, it allows for quick refilling and maintenance of the washer system. Maintaining a proper seal with this cap helps prevent dirt, debris, and moisture from entering the reservoir, thereby extending the lifespan of the washer pump and nozzles. Regular inspection and replacement of this part are recommended to ensure optimal windshield cleaning performance. Source One Parts Center offers this essential component to support your vehicle’s safety features.