NGK LB05E Resistor Spark Plug Cap NGK resistor covers are manufactured using extremely durable phenolic resin and EPDM rubber Ceramic resistors are used to ensure optimum performance and reliability Resistor covers will withstand extreme heat, vibration, prevent flashover and are water proof 90 degree elbow 5K ohm resistance nut terminal 14mm thread <a href="https://www.amazon.com/b?node=14770868011"> International products </a> have <a href="https://www.amazon.com/gp/help/customer/display.html/ref=nav_cs_help?ie=UTF8&nodeId=202045290"> separate terms, </a> are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. Manufacturer warranty may not apply <a href="https://www.amazon.com/b?node=14770868011">Learn more</a> about Amazon Global Store.