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Our Price from:$2.75


  • 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
  • Sold each
NOTE: Part numbers beginning with “R” are resistor type. Order by Champion numbers.

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.040" Gap - For 80-84 Shovelhead
product # RN-13-LYC
.040" Gap - For 78-79 Shovelhead
product # N-12-YC
.040" Gap - For 75-81 Shovelhead
product # RN-12-YC
.025" Gap - For 66-74 Shovelhead, 48-65 Panhead
product # J-12-YC
.040" Gap - For 79-85 Ironhead XL
product # RL-82-YC
.030" Gap - For 165/175cc w/ 7/16 reach
product # RH8C