Champion Iridium Plug Number RN8WYPB3 Spark Plug - 9804 Part #: 9804 Line: CHP Champion Iridium Plug Number RN8WYPB3 Spark Plug 2 Year LIMITED WARRANTY Seat: Gasket Thread Size: M14 Heat Range: 8 Preset Gap (in): 0.030 Inch Preset Gap (mm): 0.75mm Center Electrode Tip Material: Iridium Ground Electrode Tip Material: Platinum Service Number: RN8WYPB3 Metallurgy: Iridium/Platinum Show More Show Less