NGK, spark plug Iridium IX CR9EIX Fits: > 17-21 M8 models; 15-20 XG500/750/750A; 08-10 Buell 1124R; 09-10 1124CR Cafe Racer

Repl. for OEM 6R10 / RG6HCC. 10mm threaded. 19mm (3/4") reach. 4 used on M8, 2 used on XG. Used with a 16mm spark plug socket. The NGK Iridium IX spark plugs offer improved throttle response, superior anti-fouling and high-ignitability, which makes Iridium IX® ideal for the performance enthusiast, even better than platinum. Iridium's extremely high melting point is perfectly suited to today's high-temperature engines, delivering outstanding acceleration, fuel efficiency and double to triple the lifespan of a copper core plug. - Fine iridium tip ensures high durability and a consistently stable spark. - Trivalent metal plating for superior anti-corrosion and anti-seizing properties. - Outstanding acceleration, high fuel efficiency and durability.

Fits: > 17-21 M8 models; 15-20 XG500/750/750A; 08-10 Buell 1124R; 09-10 1124CR Cafe Racer