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 must withstand extreme heat, vibration, prevent flashover and must be water proof. NGK Spark Plugs superior design en...

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 must withstand extreme heat, vibration, prevent flashover and must be water proof. NGK Spark Plugs superior design en...