Designed for a sharper, leaner spark with tapered nickel/chrome alloy tip and copper center electrodeMade in the U.S.A. Harley-Davidson -- Duo Glide FL -- (1962, 1964, 1960, 1958, 1961, 1959, 1963);...
More focused ignition to prevent fouling than leading standard plug.6mm finewire design with Sport V-trim ground electrode engineered to offer improved ignitability and durability over a standard...
More focused ignition to prevent fouling than leading standard plug.6mm finewire design with Sport V-trim ground electrode engineered to offer improved ignitability and durability over a standard...