Autolite Spark Plug - #4275 4275

• Designed for a sharper, leaner spark with tapered nickel/chrome alloy tip and copper center electrode
• Made in the U.S.A.

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