Harley-Davidson Sportster Low XL 1200L 1999-2014 Performance Spark Plugs Pair Conventional style spark plugs, available in OEM heat ranges Plugs have a unique look with a black ceramic body Insulator is made of 95% pure alumina, features strong resistance to heat shock and superior insulation Sold in Pairs Harley-Davidson Sportster Low XL 1200L 1999-2014