This ignition repair kit includes a smaller sized silicone cap, which fits underneath a metal shield. This can be used to repair a coil that might otherwise need to be replaced and the metal shield provides a reduction in radio interference from the ignition, which is useful for may R/C applications. Includes all necessary hardware for installation, as pictured.Zenoah part # x374320099 Works on virtually gas powered engine we sell, and many others as well.Zenoah G230RC/G260RC/G270RC/G290RC/G231PUM/G260PUM/G290PUM/G200/G43L etc.CY CY23RC/CY26RC/CY29RC/GP290/F270/GP460/Fuelie/ etc