Reliable ignition with trivalent plating, alumina silicate insulator, triple seals, corrugated ribs and a copper core for improved heat management.
Electrical & Ignition

Active filters
Covers the factory ignition switch for a clean look. Works with Arlen Ness® Method® Top Tree and Triple Tree kits. Retains factory ignition switch location and fork lock function.
Heavy-duty Slugger starter assembled in the U.S.A.; low-profile for easy installation.
Comes complete with bearings and drive clutch; fits high-performance and OEM starters.
Combines old and newer data port styles. Includes 4-pin, 6-pin and OBD connectors; compatible with '01–'23 models. Made in the USA. For use with TR4 VCMs only.
Reliable spark plug with superior corrosion resistance, a strong ceramic insulator, triple seals and a copper core for improved heat control.
Industry-leading iridium performance for longer life and reliable ignition.
Durable spark plug with superior corrosion resistance, enhanced ceramic insulator, and copper core for effective heat management.
Trivalent plating, alumina silicate insulator, triple seals, corrugated ribs, and a copper core for effective heat removal.