Spark Plug- 322- RN11YC4 / RN9YC- Champion

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Champion 322-1 Spark Plug, 0.0394 to 0.0433 in Fill Gap, 0.551 in Thread, 0.813 in Hex, Copper PRODUCT OVERVIEW: RN9YC & RN11YC4-32: Resistor plug, 14mm, 3/4" reach, 13/16" hex head, projected tip, copper core. RJ12YC: Resistor plug, 14mm, 3/8" reach, 13/16" hex head, standard projected core nose, copper core design.

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