Purpose and benefit Provides a strong, leakproof seal to prevent washer fluid spills and evaporation, preserving cleaning performance and protecting engine bay components. Keeps the washer fluid reservoir of dust and contaminants so the washer system runs more reliably and wiper performance remains consistent. Material and durability Made from quality plastic that is wearresistant and tough, with good crack resistance for longterm use. Resists everyday exposure, handling and temperature changes common around the engine compartment. Design and fit Simple, compact design that serves as a direct replacement for a windshield washer fluid reservoir cap. Secure pressfit installation requires only a firm push to seat the cap, enabling fast, tool replacement. Performance highlights Reliable sealing reduces the need for frequent ups and prevents messes during maintenance. Durable construction minimizes the chance of failure or cracking over time. Use scenarios Routine maintenance: a damaged or missing cap during a scheduled fluid change to prevent contamination and maintain washer performance. Winter driving: Prevents fluid loss and contamination when slush and road spray are common, helping ensure clear visibility. Fleet or rental vehicles: Quick, tool installation makes this cap practical for fast service intervals and reduces downtime. Specifications to note Function: Windshield washer fluid reservoir cap with sealing function. Material: quality durable plastic with wear and crack resistance. Installation: Pressfit, no tools required. This washer fluid cap is a practical, durable replacement designed to maintain reservoir cleanliness and system performance with an easy, secure installation.