Champion spark plugs - 3 5/8" / 4"

Bad Boy 1995–1997 Disc Glide 1984–1986 Dyna Glide Custom 1992 Dyna Low Rider 1993–1998 Dyna Super Glide 1997–1998 Dyna Super Glide Convertible 1994–1998 Dyna Wide Glide 1993–1998 Electra Glide 1975–1988 Electra Glide Classic 1980–1998 Electra Glide Sport 1981–1994 Electra Glide Standard 1982–1998 Electra Glide Ultra Classic 1989–1998 Electra Glide Ultra Classic Special Anniversary Edition 1995 Fat Bob 1979–1986 Fat Boy 1990–1999 FXDG 1340 1983 Heritage Softail 1986–1987 Heritage Softail Classic 1991–1999 Heritage Softail Special/Nostalgia 1993–1996 Heritage Softail Springer 1997–1999 Low Glide 1984–1985 Low Glide Custom 1985–1987 Low Rider 1977–1992 Low Rider Convertible 1987–1994 Low Rider Custom 1987–1994 Low Rider Sport Edition (Fxrsl) 1986–1993 Road Glide 1998 Road King 1993–1998 Road King Classic 1998 Softail 1985–1999 Softail Custom 1986–1999 Softail EVO 1985 Softail Night Train 1999 Softail Springer 1988–1999 Sport Glide 1983–1992 Sport Glide Police 1984–1989 Sturgis 1980–1992 Super Glide 1975–1994 Super Glide II 1982–1984 Super Glide Screamin Eagle 1999–2000 Tour Glide 1979–1983 Tour Glide Classic 1981–1992 Tour Glide Ultra Classic 1989–1996 Wide Glide 1980–1986 XR 1000 1984–1985