Champion RN12YC Spark Plugs for Harley-Davidson Shovelhead and Evolution Mirrors Handlebars and Controls 25in diameter carb openings

25in diameter carb openings

Can be used in conjunction with brackets to secure exhaust pipes or mufflers to frames or hangers

Use of a float charger recommended for maximum battery life

Will fit OEM or aftermarket fuel tanks with 22mm male threads

Champion RN12YC Spark Plugs for Harley-Davidson Shovelhead and Evolution Mirrors Handlebars and Controls 25in diameter carb openingsChampion 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