Unique electrode shape maximizes the power created by the spark plug - Diamond Fire technology
Electrode is a combination of performance and technology that results in an improved flame kernel shape
This flame front ignites the bulk air/fuel mixture faster, moves heat into the combustion chamber faster and creates a more localized pressure front for faster pressure rise during the cylinder power stroke
The result is more complete combustion and an improvement in engine performance
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2000 Harley-Davidson FXR4
1999 Harley-Davidson FXR2
1999 Harley-Davidson FXR3
1999 Harley-Davidson FXSTB Night Train
1998-1999 Harley-Davidson Electra Glide Ultra Classic FLHTCU
1998 Harley-Davidson FLHRCI Road King Classic
1998 Harley-Davidson FLTRI Road Glide
1998 Harley-Davidson FLTR Road Glide
1998 Harley-Davidson Road King EFI FLHR
1997-1999 Harley-Davidson FLSTS Heritage Springer
1996-1998 Harley-Davidson FLHTCI Electra Glide Classic
1996-1997 Harley-Davidson FLHRI Road King
1996 Harley-Davidson FLTCUI Tour Glide Ultra Classic
1996 Harley-Davidson Tour Glide Ultra Classic FLTCU
1995-1998 Harley-Davidson FLHTCUI Electra Glide Ultra Classic
1995-1998 Harley-Davidson FXD Dyna Super Glide
1995-1998 Harley-Davidson FXDS-Conv Dyna Convertible
1995-1997 Harley-Davidson FXSTSB Bad Boy
1995 Harley-Davidson Electra Glide Classic EFI FLHTCI
1994-1998 Harley-Davidson FLHR Road King
1994-1996 Harley-Davidson FLSTN Heritage Softail Special
1993-1998 Harley-Davidson FXDL Dyna Low Rider
1993-1998 Harley-Davidson FXDWG Dyna Wide Glide
1993 Harley-Davidson FLSTN Heritage Softail Nostalgia
1993 Harley-Davidson Sport Glide FXRT
1992 Harley-Davidson FXDC Super Glide Custom
1990-1999 Harley-Davidson FLSTF Fat Boy
1990-1993 Harley-Davidson FXRS-Conv Low Rider Sport Convertible
1989-1997 Harley-Davidson FLHTCU Electra Glide Ultra Classic
1989-1995 Harley-Davidson FLTCU Tour Glide Ultra Classic
1989-1990, 1993 Harley-Davidson Low Rider FXRS
1988-1999 Harley-Davidson FXSTS Springer Softail
1988-1999 Harley-Davidson FLSTC Heritage Softail Classic
1988-1993 Harley-Davidson FXRS-SP Low Rider Sport
1987-1994 Harley-Davidson FXLR Low Rider Custom
1987 Harley-Davidson Softail Heritage Classic FLSTC
1986-1999 Harley-Davidson FXSTC Softail Custom
1986-1990 Harley-Davidson FLST Heritage Softail
1986-1987 Harley-Davidson FLHT Electra Glide Standard
1986 Harley-Davidson FXRD Sport Glide Grand Touring
1985, 1987 Harley-Davidson FXRC Low Rider Chrome
1984-1993 Harley-Davidson FXST Softail Standard
1984-1988, 1991-1992 Harley-Davidson FXRS Low Glide
1984 Harley-Davidson FLHX Electra Glide Special
1984 Harley-Davidson FXRDG Disc Glide
1983-1998 Harley-Davidson FLHTC Electra Glide Classic
1983-1992 Harley-Davidson FXRT Sport Glide
1983-1985 Harley-Davidson FXSB Low Rider - Belt
1983-1984 Harley-Davidson XR1000
1983, 1985 Harley-Davidson Electra Glide Standard FLHT
1983 Harley-Davidson FXDG Disc Glide
1982-1983, 1986-1994 Harley-Davidson FXR Super Glide II
1982-1983 Harley-Davidson Super Glide II FXRS
1981-1993 Harley-Davidson FLTC Tour Glide Classic
1981-1982 Harley-Davidson Electra Glide Classic FLH
1981, 1985 Harley-Davidson FXEF Fat Bob
1981 Harley-Davidson Electra Glide Heritage FLH
1980-1984 Harley-Davidson FXWG Wide Glide
1980-1983 Harley-Davidson FLT Tour Glide
1980-1982, 1987-1993 Harley-Davidson FLHS Electra Glide Sport
1980-1982 Harley-Davidson FXB Sturgis
1980, 1994 Harley-Davidson Tour Glide Classic FLTC
1979-1980 Harley-Davidson 1200 Super Glide FXE
1979-1980 Harley-Davidson 1200 Fat Bob FXEF
1979-1980 Harley-Davidson Super Glide 80 FXE
1979-1980 Harley-Davidson Fat Bob FXEF
1979 Harley-Davidson Electra Glide FLH
1979 Harley-Davidson 1200 Low Rider FXS
1979 Harley-Davidson Low Rider FXS
1978-1980 Harley-Davidson 1200 Electra Glide FLH
1978-1980 Harley-Davidson Electra Glide FL
1978, 1980-1984 Harley-Davidson FLH Electra Glide
1978, 1980-1982 Harley-Davidson FXS Low Rider
1978 Harley-Davidson FXE Super Glide
1978 Harley-Davidson FX Super Glide