This thermostat housing (part numbers 25600-2J100 and 256002J100) is designed for use in the engine cooling system of the Kona 2018-2022 and Sedan 2021 equipped with a 2.0L engine.It serves as a direct replacement component that supports proper coolant flow and temperature regulation.The housing is constructed to meet standard performance requirements under normal operating conditions.Professional installation is recommended.Package includes one thermostat housing.Regular inspection of the cooling system is advised to maintain functionality.