This spark plug boot is an authentic OEM supplied replacement part that is specially designed for use with Kawasaki engines commonly installed on lawn and garden equipment. This rubber cap is generally utilized to connect the spark plug to the module, make sure to refer to the appropriate diagrams of your model for the correct location an...Read mored application of this component. Over time rubber material can dry out and crack eventually requiring a replacement. Keep in mind the high-quality part is sold individually.