Genuine OEM Audi Engine Oil Cooler, part number 03C117021J. This essential component is designed to regulate the temperature of the engine oil, preventing overheating and ensuring optimal lubrication for critical engine parts. It is typically mounted directly to the engine block. Weighing approximately 0.548 kg, this cooler features a robust construction to withstand engine vibrations and temperature fluctuations. Installing a genuine OEM oil cooler guarantees efficient heat exchange, proper fluid flow, and long-term reliability for engine cooling system integrity.