Genuine OEM Volkswagen Vacuum Hose, part number 03L131055BS. This hose is part of the engine's air intake system, connecting various components to regulate vacuum pressure. It is located in the engine bay, connecting to the air filter housing and other vacuum-operated components. Made from durable rubber for long-lasting performance. Genuine OEM hoses ensure precise fitment and material integrity, crucial for maintaining correct vacuum levels and engine performance.