Featuring a 98% pure copper core and high-grade alumina silicate ceramic for improved throttle response, service life and performance.

Additional Info

• Cold-rolled threads

• Trivalent plating

• Specialized ground electrode designs

Fitment

• 1964 Harley Davidson FL Duo Glide

• 1962 Harley Davidson FL Duo Glide

• 1963 Harley Davidson FL Duo Glide

• 1961 Harley Davidson FL Duo Glide

• 1960 Harley Davidson FL Duo Glide

• 1959 Harley Davidson FL Duo Glide

• 1958 Harley Davidson FL Duo Glide

• 1957 Harley Davidson FL Duo Glide

• 1956 Harley Davidson FL Duo Glide

• 1955 Harley Davidson FL Duo Glide

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