Genuine OEM Audi Coolant Radiator, part number 5Q0121251GD. This critical component is responsible for reducing the temperature of the engine coolant, preventing overheating and ensuring the engine operates within its optimal temperature range. It is typically located at the front of the vehicle, allowing airflow to pass through its fins for efficient heat dissipation. This radiator weighs 2.67 kg and measures 0.77m in length. Opting for a genuine OEM radiator ensures precise fitment, optimal cooling efficiency, and long-term durability, crucial for protecting your engine.