Genuine OEM Volkswagen Engine Oil Cooler, part number 03C117021M. This vital component is designed to reduce the temperature of the engine oil, ensuring it remains within optimal operating parameters to prevent degradation and maintain lubrication effectiveness. It is typically mounted near the engine block or oil filter housing. Made from durable aluminum, this cooler weighs approximately 0.628 kg. Choosing genuine OEM ensures proper heat exchange efficiency and leak-free operation for critical engine cooling.