This authentic component is supplied directly from the original equipment manufacturer for use with Tanaka lawn and garden equipment. The cap is used to connect the spark plug to the magneto. It provides an identical replacement for a missing or a faulty part that was installed on a new unit. Please make sure to refer to the appropriate d...Read moreiagrams of your model for the correct location and application of this cap spark plug assembly. Keep in mind one durable rubber cap and a metal spring are included.