Genuine OEM Volkswagen Engine Oil Spray Nozzle, part number 03H103157. This precision component is responsible for spraying lubricating oil to specific areas within the engine, such as piston undersides or cylinder walls. Its function is vital for reducing friction, dissipating heat, and ensuring the longevity of internal engine components. This small, metal nozzle features a distinctive yellow tip and weighs approximately 0.003 kg. Using a genuine OEM oil spray nozzle guarantees the correct spray pattern, flow rate, and material integrity, which are essential for maintaining proper engine lubrication and preventing costly damage.