NGK FR9BI-11 Motorcycle Spark Plug

The NGK FR9BI-11 Motorcycle Spark Plug features; a solid copper core, a 14mm thread diameter with a 1.25mm pitch, 19mm reach with an 16mm Hex Socket fitting, a triple sealing washer, aluminate silicate insulator and anti flash-over ribs ensuring reliability, durability and easier starting. NGK Spark Plugs are designed to transfer a high intensity electrical discharge across the spark plug gap producing enough heat energy to ignite the air and fuel mixture.