Spark Plugs - '75-'99 Big Twin 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...

Iridium Spark Plugs - TC/XL Iridium electrode is smaller than a standard electrode; requires less voltage, Hotter spark and extended spark plug service life compared to conventional plugs, Has the distinctive black ceramic with red lettering and gold-colored corrosion-protected coating...

Iridium Spark Plugs - M8/XG Iridium electrode is smaller than a standard electrode; requires less voltage, Hotter spark and extended spark plug service life compared to conventional plugs, Has the distinctive black ceramic with red lettering and gold-colored corrosion-protected coating...

Spark Plugs - '75-'99 Big Twin 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...

Spark Plugs - '71-'85 XL Plugs have a unique look with their 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 insulator eliminates...

Spark Plugs - '48-'74 Big Twin Plugs have a unique look with their 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 insulator...

Spark Plugs - M8/XG 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...

Ignition Tune Up Kit with Champion Spark Plugs Ignition tune up kit includes spark plugs points and condenser. Kit features Champion spark plugs. FITS Harley Davidson EL 1936 Harley Davidson EL 1937 Harley Davidson EL 1938 Harley Davidson EL 1939...

Ignition Tune Up Kit with Champion Spark Plugs Ignition tune up kit includes spark plugs points and condenser. Kit features Champion spark plugs. FITS Harley Davidson FL 1948 Harley Davidson FL 1949 Harley Davidson FL 1950 Harley Davidson FL 1951...

Ignition Tune Up Kit with Champion Spark Plugs Ignition tune up kit includes spark plugs points and condenser. Kit features Champion spark plugs. FITS Harley Davidson FL 1970 Harley Davidson FL 1971 Harley Davidson FL 1972 Harley Davidson FL 1973...

Ignition Tune Up Kit with Champion Spark Plugs Ignition tune up kit includes spark plugs points and condenser. Kit features Champion spark plugs. FITS Harley Davidson XLCH 1958 Harley Davidson XLCH 1959 Harley Davidson XLCH 1960 Harley Davidson XLCH 1961...

Ignition Tune Up Kit with Accel Spark Plugs Ignition tune up kit includes spark plugs points and condenser. Kit features Accel spark plugs. FITS Harley Davidson FL 1975 Harley Davidson FL 1976 Harley Davidson FL 1977 Harley Davidson FL 1978...

Ignition Tune Up Kit with Beck Spark Plugs Ignition tune up kit includes spark plugs points and condenser. Kit features Beck spark plugs. FITS Harley Davidson EL 1936 Harley Davidson EL 1937 Harley Davidson EL 1938 Harley Davidson EL 1939...

Thread Repair Kit for Spark Plugs The Heli-Coil thread repair kit is for spark plugs with thread size of 18mm and length of .500 inch. This kit includes tap installation tool 24 inserts and complete instructions.

Thread Insert for Spark Plugs Heli-Coil thread inserts only for spark plugs with thread size of 16mm and a length of .500 inch. Includes 6 inserts drill size of 23/32.

V-Twin Nickel Spark Plugs Long reach type. FITS Harley Davidson FL 1975 Harley Davidson FL 1976 Harley Davidson FL 1977 Harley Davidson FL 1978 Harley Davidson FL 1979 Harley Davidson FL 1980 Harley Davidson FL 1981 Harley Davidson FL 1982...

V-Twin Nickel Spark Plugs *NOTE: Short reach type. Replaces 3-4 OEM short reach plugs. FITS Harley Davidson FL 1975 Harley Davidson FL 1976 Harley Davidson FL 1977 Harley Davidson FL 1978 Harley Davidson FL 1979 Harley Davidson FL 1980 Harley...

Ultima Peformance Spark Plugs Ultima perfomance spark plugs features a copper core electrode for a longer service life nickel plated housing 95% pure alumina insulator and a heat crimping process to ensure a leak free seal. FITS Harley Davidson FLST...

Champion Copper Plus Spark Plugs Copper plus style spark plugs have a .040 gap. FITS Harley Davidson FL 1975 Harley Davidson FL 1976 Harley Davidson FL 1977 Harley Davidson FL 1978 Harley Davidson FL 1979 Harley Davidson FL 1980 Harley...

Champion Copper Plus Spark Plugs *NOTE: Short reach type. FITS Harley Davidson FL 1948 Harley Davidson FL 1949 Harley Davidson FL 1950 Harley Davidson FL 1951 Harley Davidson FL 1952 Harley Davidson FL 1953 Harley Davidson FL 1954 Harley Davidson...

Champion Spark Plugs Copper Plus Copper plus style Champion spark plugs have a gap of .030 inch. FITS Harley Davidson XL 1972 Harley Davidson XL 1973 Harley Davidson XL 1974 Harley Davidson XL 1975 Harley Davidson XL 1976 Harley Davidson...

Champion 18mm Spark Plugs Sold as a set of 6. FITS Harley Davidson EL 1936 Harley Davidson EL 1937 Harley Davidson EL 1938 Harley Davidson EL 1939 Harley Davidson EL 1940 Harley Davidson FL 1941 Harley Davidson FL 1942 Harley...

Champion Spark Plugs Copper Plus Copper plus style Champion spark plugs have a gap of .040 inch. FITS Harley Davidson XL 1979 Harley Davidson XL 1980 Harley Davidson XL 1981 Harley Davidson XL 1982 Harley Davidson XL 1983 Harley Davidson...

Champion Spark Plugs Copper Plus Copper plus style Champion spark plugs have a gap of .040 inch. FITS Harley Davidson FLST 1999 Harley Davidson FLST 2000 Harley Davidson FLST 2001 Harley Davidson FLST 2002 Harley Davidson FLST 2003 Harley Davidson...