Ngk Spark Plugs Spark Plug - R5670-5 2298

• Superior construction for serious power
• Versatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hot
• Features high alumina ceramics for improved heat dissipation and electrical insulation, deep-seated copper core for a wider heat range and a nickel alloy tip for longer life

Harley-Davidson -- Duo Glide FLH -- (1962, 1963, 1958, 1960, 1964, 1961, 1959); Harley-Davidson -- Electra Glide FL -- (1973, 1966, 1970, 1968, 1967, 1971, 1969, 1974, 1972, 1965); Harley-Davidson -- Hydra Glide EL -- (1951, 1957, 1956, 1954, 1950, 1949, 1955, 1953, 1952); Harley-Davidson -- 1200 Super Glide FX -- (1971, 1972, 1973, 1974); Harley-Davidson -- FL -- (1948); Harley-Davidson -- 1200 Super Glide FXE -- (1974); Harley-Davidson -- Hydra Glide FL -- (1950, 1955, 1956, 1957, 1949, 1951, 1953, 1954); Harley-Davidson -- Duo Glide FL -- (1958, 1960, 1962, 1964, 1959, 1963, 1961); Harley-Davidson -- 1200 Electra Glide FLH -- (1972, 1971, 1974, 1973, 1967, 1968, 1966, 1969, 1970, 1965)