NGK Spark Plug Caps 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 flash over and must be water proof. NGK Spark Plugs superior design ensures optimal service life and performance.
Original Equipment fit, form and function.
Available in various shapes and sizes.
Designed to fit removable terminal nut or bare threaded terminal spark plugs.