Genuine OEM Volkswagen Engine Ventilation Pipe, part number 04L103493C. This pipe is an integral part of the engine's crankcase ventilation system, designed to recirculate blow-by gases and maintain optimal engine pressure. It connects to the valve cover, ensuring proper air flow within the engine. Weighing approximately 0.039 kg and measuring 0.175 m in length, this component is built for precise fitment. Using a genuine OEM pipe ensures exact dimensions, material durability, and resistance to oil and heat, which is vital for preventing vacuum leaks and maintaining emission system compliance.