This replacement oil filter is specially designed for use with Kawasaki engines. It is a genuine OEM sourced part, not an aftermarket immitation. This oil filter is used to remove contaminants from the engine oil. This part is manufactured in accordance with applicable EPA emissions regulations. It is recommended to replace oil filters at...Read more least once a season. Please note, this item is sold individually. To replace the oil filter you will need a pipe wrench or a filter wrench. • Disconnect the spark plug • Remove the old oil filter by twisting it counterclockwise • Clean the sealing surface on the oil filter adapter from any dirt or debris • Lightly oil the filter gasket with clean engine oil • Install the new filter