Genuine OEM Volkswagen Engine Coolant Radiator, part number 1K0121253AA. This essential component of the engine cooling system is responsible for dissipating heat from the circulating coolant, preventing engine overheating and maintaining optimal operating temperatures. It is typically mounted at the front of the vehicle. With dimensions of 0.775 m length, 0.45 m width, and 0.095 m height, and weighing 4.325 kg, this radiator ensures efficient heat exchange. Choosing a genuine OEM radiator guarantees the correct core design, material quality, and hose connection points for reliable and leak-free cooling performance.