Spark Plugs & Wires

100 percent pre-fired to ensure reliable operation Copper core center electrode for superior thermal conductivity Unique five-rib insulator reduces flashover and decreases voltage loss Dual...

100 percent pre-fired to ensure reliable operation Copper core center electrode for superior thermal conductivity Unique five-rib insulator reduces flashover and decreases voltage loss Dual...

100 percent pre-fired to ensure reliable operation Copper core center electrode for superior thermal conductivity Unique five-rib insulator reduces flashover and decreases voltage loss Dual...

100 percent pre-fired to ensure reliable operation Copper core center electrode for superior thermal conductivity Unique five-rib insulator reduces flashover and decreases voltage loss Dual...

100 percent pre-fired to ensure reliable operation Copper core center electrode for superior thermal conductivity Unique five-rib insulator reduces flashover and decreases voltage loss Dual...

2017-2018 Harley M8 Models, 2015-2018 XG500, XG750 & XG750A Cross references to NGK CR9EIX and Harley-Davidson RG6HCC The ultimate in spark plug technology and performance Iridium electrode is...

Conventional style spark plugs, available in OEM heat ranges for your Harley Plugs have a unique look with a black ceramic body and bold red logo/script Insulator is made of 95% pure alumina,...

Constructed of SAE660 bearing bronze Made in the U.S.A. Compatible Vehicles Years<

Replaces NGK resistor covers Ceramic resistors that ensure performance Adaptable thread size 5 ohm resistance Waterproof caps for superior performance Allowable wire diameter 7 mm - 8 mm