AUTOLITE SPARK PLUG 4263/4 COPPER 4263

AUTOLITE SPARK PLUG 4263/4 COPPER 4263 Features Copper-glass seal bonds insulator, terminal post center electrove together; assures full required voltage at spark gap; gas-tight seal (100% leak proof) Multi-rib insulator reduces dange of "flash-over" One-piece terminal post adds strength Resistor reduces radio frequency interference (RFI) and electrode erosion Cold-formed steel shell precision rolled threads Full copper core electrode provides better performance in all conditions Fitment Make Model Year BMW R100RS 1988 BMW R100RS 1989 BMW R100RS 1990 BMW R100RS 1991 BMW R100RS 1992 BMW R100RS 1993 BMW R100RS 1994 BMW R100RS 1995 BMW R100 1991 BMW R65 1980 BMW R65 1981 BMW R65 1986 BMW R65 1987 BMW R80 1985 BMW R80 1986 BMW R80 1987 BMW R80 1984 BMW R80RT 1985 BMW R80RT 1986 BMW R80RT 1987 BMW R80RT 1983 BMW R80RT 1984 BMW R80G/S 1981 BMW R80G/S 1980 BMW R80/7 1978 BMW R80/7 1979 BMW R80/7 1980 BMW R80ST 1983 BMW R80ST 1984 B