Seller notes

Copper Plus Resistor Spark Plug,br> Copper Plus Resistor Spark Plug - RN9YC Copper Plus Resistor Spark Plug Champion 415 - RN9YC Free Fedex Ground Or Faster Shipping With $35 Order! Copper Plus spark plug has a copper core center electrode that allows for accurate control of heat range, optimizing performance, and longevity of the spark plug Patented SAC-9 semi-conductor resistor for maximum EMI and RFI suppression Patented Ultraseal coated shell for rust prevention *Please note some of our list...

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