Genuine OEM Kia Radiator Drain Plug, part number 253181D100. This small but crucial component is located at the bottom of the radiator, enabling the controlled draining of engine coolant during maintenance or repairs. It ensures a secure seal to prevent coolant leaks when closed. Made from durable plastic, this plug is designed for repeated use without stripping or cracking. Using a genuine OEM radiator drain plug guarantees the correct thread fit, sealing properties, and material resistance to coolant chemicals, preventing leaks and maintaining cooling system integrity.