NGK IMR9A-9H Motorcycle Spark Plug

The NGK IMR9A-9H Motorcycle Spark Plug features; an Iridium Centre Electrode and Platinum ground Electrode, a 10mm thread diameter with a 1.00mm 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.