Champion RN12YC Spark Plugs for Harley-Davidson Shovelhead and Evolution

Champion RN12YC Spark Plugs for Harley-Davidson Shovelhead and Big Twin Evolution

Whether it's time for a tuneup or you're troubleshooting an acute ignition problem, these Champion spark plugs will restore lost ignition performance.

• Copper core
• Zinc-plated shell for corrosion-resistance
• Resistor for suppression of electromagnetic interference
• Sold as a pack of four