Drag Specialties Spark Plugs - '48-'74 Big Twin

SPARK PLUGS 48-74 BT

• PERFORMANCE SPARK PLUGS
• Conventional style spark plugs, available in OEM heat ranges
• Plugs have a unique look with a black ceramic body and bold red logo/script
• Insulator is made of 95% pure alumina, features strong resistance to heat shock and superior insulation
• Multi-rib design of the insulator eliminates flashover
• Nickel-plated housing prevents oxidation and corrosion
• Multi-layer gaskets and heat crimping process ensure a leak-free, gas-tight seal
• Copper core electrode prevents oxidation and corrosion, has good electrical and heat conductivity and creates long spark plug service life
• Sold in pairs in blister pack

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