Genuine OEM Volkswagen Rear Axle Differential Breather Hose, part number 5WA525095. This critical hose is connected to the rear axle differential, allowing it to equalize internal pressure changes caused by temperature fluctuations. Proper breathing prevents pressure buildup that could damage seals and ensures optimal lubrication. Measuring 420mm long, 200mm wide, and 26mm high, it is designed for precise routing. Using a genuine OEM breather hose ensures the correct material and routing geometry, maintaining the differential's integrity and extending its service life.