Genuine OEM Volkswagen Oil Filter Housing Cap, part number 03H115433. This essential component securely seals the oil filter housing, preventing oil leaks and protecting the filter element from contaminants. It is typically located on the engine block or near the oil pan. Made from high-strength, heat-resistant plastic, this cap ensures a tight, reliable seal under engine operating conditions. Using a genuine OEM oil filter housing cap guarantees correct thread engagement and material integrity, crucial for maintaining engine lubrication and preventing costly oil leaks.