Champion RA8HC Spark Plugs for Harley-Davidson Twin Cam and Evolution Sportster Brakes Big Twin Parts Kit comes with metric mounting

Kit comes with metric mounting hardware

They feature chrome plated washers and anti-corrosion zinc plated steel spacers

but there's more to consider than meets the eye

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

no cutting of your stock harness is required

Champion RA8HC Spark Plugs for Harley-Davidson Twin Cam and Evolution Sportster Brakes Big Twin Parts Kit comes with metric mountingChampion RA8HC Spark Plugs for Harley Davidson Twin Cam and Evolution Sportster 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 eight