Champion RN1C / RN1C/T10 COPPER PLUS Spark Plug Replaces RP1MWhen its time to replace the OE spark plugs in your vehicle, mower or weed whacker, Copper Plus® rises to the occasion. Copper-core center electrode Patented Ultraseal™ coated shell for maximum corrosion resistance Patented SAC-9 semiconductor resistorIf you are unsure as to whether this is the correct part for your vehicle, please don't hesitate to contact us. Alternatively please use the cross reference table above.
