Water Tank Bottle Cover — Compatible with Cadillac XT5 (2017–2019), XT4 (2019–2020), XTS (2013–2019) Windshield washer fluid reservoir tank bottle cap Key benefits Keeps washer fluid clean and contained: prevents dirt, water ingress, and debris from entering the washer fluid reservoir. Protects internal parts: waterproof design shields reservoir internals from rain and moisture, helping maintain washer system performance. Easy identification and replacement: water spray makes the reservoir easy to locate; simple directfit replacement saves time during routine maintenance. Main features Compatibility: Designed to fit Cadillac XT5 (2017–2019), XT4 (2019–2020), and XTS (2013–2019) washer fluid reservoirs. Material: Made of durable plastic for reliable, longlasting service. Design details: Clearly marked with a water spray icon for quick identification; waterproof construction helps protect internal components. Installation: Quick, tool replacement — remove the old cover and press this cap onto the gasket to secure it. If the cap is damaged by heat or fatigue, it can be replaced easily. Use scenarios Routine maintenance: a worn or missing cap during scheduled service to prevent contamination and maintain washer performance. Post replacement: After enginebay work or minor collisions, reinstalling a secure, waterproof cap restores protection to the washer reservoir. Bad weather protection: Before heavy rain or a long drive in wet conditions, fitting a reliable cap helps keep washer fluid clean and prevents moisturerelated issues. What you get One plastic washer fluid reservoir bottle cap compatible with the specified Cadillac models. A simple, directfit replacement that restores the reservoir seal and identification mark. Note: Fits only the listed Cadillac models and years. Installation requires placing the cap over the existing gasket to secure it.