Genuine OEM Volkswagen Crankcase Seal, part number 057103147B. This small, critical seal is designed to prevent fluid leaks within the engine's crankcase assembly, ensuring proper lubrication and pressure. Measuring just 0.013 meters in length and weighing 0.0011 kg, its precise dimensions are vital for a perfect fit. Choosing a genuine OEM seal guarantees the correct material composition and exact tolerances, which are essential for maintaining engine integrity and preventing costly fluid loss over time.