NGK Spark Plug #7634/04 for Harley Davidson Road King and Electra Glide Classic

The NGK Spark Plug #7634/04 is designed specifically for Harley Davidson models including the Road King and Electra Glide Classic from 1984 through 1999. Engineered for reliable ignition performance, this spark plug ensures smooth engine operation and efficient combustion under a variety of riding conditions. Its durable construction and precise fit make it a dependable choice for motorcycle enthusiasts seeking quality and longevity.
This spark plug features a compact size suitable for a range of Harley Davidson engines, with a length of approximately 0.81 inches and a width of 0.25 inches. It is compatible with various NGK replacements, such as the ILKR8Q7 and BPR8ES series, providing flexibility for different maintenance needs. Designed specifically for snow cat applications, it is optimized for cold-weather performance, ensuring your motorcycle starts reliably in winter conditions.
The NGK part number 7634/04 guarantees a high-quality spark with excellent ignitability and durability. Its robust design helps resist fouling, fouling, and wear, extending the service life of your ignition system. Whether performing routine maintenance or replacing a worn-out spark plug, this product offers a straightforward upgrade to maintain your Harley Davidson’s peak performance. Trust NGK for premium spark plugs that deliver consistent ignition quality and long-lasting reliability across a broad range of Harley Davidson models.

Features:

• Designed specifically for snow cat applications, ensuring cold-weather reliability.

• Compatible with NGK series ILKR8Q7 and BPR8ES for versatile replacement options.

• Engineered for Harley Davidson models from 1984 to 1999, including Road King and Electra Glide Classic.

• Compact size with approximately 0.81 inches in length and 0.25 inches in width, fitting a range of Harley engines.

• Durable construction with high resistance to fouling and wear for extended service life.

Fits 1977 Harley-Davidson FXS Low Rider 1978 Harley-Davidson FXS Low Rider 1979 Harley Davidson FXS Low Rider 1980 Harley Davidson FLH Electra Glide 1980 Harley Davidson FLHC Electra Glide Classic 1980 Harley Davidson FLT Tour Glide 1980 Harley Davidson FXB Sturgis 1980 Harley Davidson FXE Super Glide 1980 Harley Davidson FXEF Fat Bob 1980 Harley Davidson FXWG Wide Glide 1980 Harley-Davidson FLHS Electra Glide Sport 1980 Harley-Davidson FXS Low Rider 1981 Harley Davidson FLH Electra Glide 1981 Harley Davidson FLHC Electra Glide Classic 1981 Harley Davidson FLT Tour Glide 1981 Harley Davidson FLTC Tour Glide Classic 1981 Harley Davidson FXB Sturgis 1981 Harley Davidson FXEF Fat Bob 1981 Harley-Davidson FLHS Electra Glide Sport 1981 Harley-Davidson FXE Super Glide 1981 Harley-Davidson FXS Low Rider 1981 Harley-Davidson FXWG Wide Glide 1982 Harley Davidson FLH Electra Glide 1982 Harley Davidson FLTC Tour Glide Classic 1982 Harley Davidson FXR Super Glide 1982 Harley Davidson FXRS Low Glide 1983 Harley Davidson FLH Electra Glide 1983 Harley Davidson FLTC Tour Glide Classic 1983 Harley Davidson FXDG Disc Glide 1983 Harley Davidson FXR Super Glide 1983 Harley Davidson FXSB Low Rider - Belt 1983 Harley-Davidson FXRS Low Glide 1983 Harley-Davidson FXRT Sport Glide 1984 Harley Davidson FLH Electra Glide 1984 Harley Davidson FLHS Electra Glide Sport 1984 Harley Davidson FLHTC Electra Glide Classic 1984 Harley Davidson FLHX Electra Glide Special 1984 Harley Davidson FLTC Tour Glide Classic 1984 Harley Davidson FXE Super Glide 1984 Harley Davidson FXRDG Disc Glide 1984 Harley Davidson FXRS Low Glide 1984 Harley Davidson FXSB Low Rider - Belt 1984 Harley Davidson FXST Softail 1984 Harley Davidson FXWG Wide Glide 1984 Harley-Davidson FXRT Sport Glide 1985 Harley Davidson FLH Electra Glide 1985 Harley Davidson FLHTC Electra Glide Classic 1985 Harley Davidson FLHX Electra Glide Special 1985 Harley Davidson FLTC Tour Glide Classic 1985 Harley Davidson FXEF Fat Bob 1985 Harley Davidson FXRC Low Glide 1985 Harley Davidson FXRT Sport Glide 1985 Harley Davidson FXSB Low Rider - Belt 1985 Harley Davidson FXST Softail 1985 Harley Davidson FXWG Wide Glide 1985 Harley-Davidson FXRS Low Glide 1986 Harley Davidson FLHT Electra Glide 1986 Harley Davidson FLTC Tour Glide Classic 1986 Harley Davidson FXR Super Glide 1986 Harley Davidson FXRS Low Rider 1986 Harley Davidson FXRS-SP Low Rider Sport 1986 Harley Davidson FXST Softail 1986 Harley Davidson FXSTC Softail Custom 1986 Harley-Davidson FLHTC Electra Glide Classic 1986 Harley-Davidson FLST Softail Heritage 1986 Harley-Davidson FXRD Grand Touring 1986 Harley-Davidson FXRT Sport Glide 1986 Harley-Davidson FXWG Wide Glide 1987 Harley Davidson FLHS Electra Glide Sport 1987 Harley Davidson FLHT Electra Glide 1987 Harley Davidson FLST Softail Heritage 1987 Harley Davidson FXLR Low Rider Custom 1987 Harley Davidson FXR Super Glide 1987 Harley Davidson FXRS Low Glide 1987 Harley Davidson FXST Softail 1987 Harley Davidson FXSTC Softail Custom 1987 Harley-Davidson FLHTC Electra Glide Classic 1987 Harley-Davidson FLTC Tour Glide Classic 1987 Harley-Davidson FXRC Low Rider Chrome 1987 Harley-Davidson FXRS-SP Low Rider Sport 1987 Harley-Davidson FXRT Sport Glide 1988 Harley Davidson FLHS Electra Glide Sport 1988 Harley Davidson FLHTC Electra Glide Classic 1988 Harley Davidson FLST Softail Heritage 1988 Harley Davidson FLSTC Softail Heritage Classic 1988 Harley Davidson FLTC Tour Glide Classic 1988 Harley Davidson FXLR Low Rider Custom 1988 Harley Davidson FXR Super Glide 1988 Harley Davidson FXRS Low Glide 1988 Harley Davidson FXRT Sport Glide 1988 Harley Davidson FXST Softail 1988 Harley Davidson FXSTS Softail Springer 1988 Harley-Davidson FXRS-SP Low Rider Sport 1988 Harley-Davidson FXSTC Softail Custom 1989 Harley Davidson FLHS Electra Glide Sport 1989 Harley Davidson FLHTCU Electra Glide Ultra Classic 1989 Harley Davidson FLST Softail Heritage 1989 Harley Davidson FLSTC Softail Heritage Classic 1989 Harley Davidson FXLR Low Rider Custom 1989 Harley Davidson FXR Super Glide 1989 Harley Davidson FXRS-SP Low Rider Sport 1989 Harley Davidson FXRT Sport Glide 1989 Harley Davidson FXST Softail 1989 Harley Davidson FXSTC Softail Custom 1989 Harley Davidson FXSTS Softail Springer 1989 Harley-Davidson FLHTC Electra Glide Classic 1989 Harley-Davidson FLTC Tour Glide Classic 1989 Harley-Davidson FLTCU Ultra Classic Tour Glide 1989 Harley-Davidson FXRS Low Glide 1990 Harley Davidson FLHS Electra Glide Sport 1990 Harley Davidson FLHTC Electra Glide Classic 1990 Harley Davidson FLST Softail Heritage 1990 Harley Davidson FLSTF Softail Fat Boy 1990 Harley Davidson FLTC Tour Glide Classic 1990 Harley Davidson FLTCU Ultra Classic Tour Glide 1990 Harley Davidson FXLR Low Rider Custom 1990 Harley Davidson FXRS Low Glide 1990 Harley Davidson FXRS-Conv Low Rider Convertible 1990 Harley Davidson FXRS-SP Low Rider Sport 1990 Harley Davidson FXRT Sport Glide 1990 Harley-Davidson FLHTCU Electra Glide Ultra Classic 1990 Harley-Davidson FLSTC Softail Heritage Classic 1990 Harley-Davidson FXR Super Glide 1990 Harley-Davidson FXST Softail 1990 Harley-Davidson FXSTC Softail Custom 1990 Harley-Davidson FXSTS Softail Springer 1991 Harley Davidson FLHS Electra Glide Sport 1991 Harley Davidson FLHTC Electra Glide Classic 1991 Harley Davidson FLHTCU Electra Glide Ultra Classic 1991 Harley Davidson FLSTC Softail Heritage Classic 1991 Harley Davidson FLTC Tour Glide Classic 1991 Harley Davidson FXLR Low Rider Custom 1991 Harley Davidson FXR Super Glide 1991 Harley Davidson FXRS Low Glide 1991 Harley Davidson FXRS-Conv Low Rider Convertible 1991 Harley Davidson FXRT Sport Glide 1991 Harley Davidson FXSTC Softail Custom 1991 Harley Davidson FXSTS Softail Springer 1991 Harley-Davidson FLSTF Softail Fat Boy 1991 Harley-Davidson FLTCU Ultra Classic Tour Glide 1991 Harley-Davidson FXDB-S Dyna Glide Sturgis 1991 Harley-Davidson FXRS-SP Low Rider Sport 1992 Harley Davidson FLHTC Electra Glide Classic 1992 Harley Davidson FLHTCU Electra Glide Ultra Classic 1992 Harley Davidson FLSTC Softail Heritage Classic 1992 Harley Davidson FLSTF Softail Fat Boy 1992 Harley Davidson FLTC Tour Glide Classic 1992 Harley Davidson FLTCU Ultra Classic Tour Glide 1992 Harley Davidson FXDB-D Dyna Glide Daytona 1992 Harley Davidson FXDC Dyna Super Glide Custom 1992 Harley Davidson FXLR Low Rider Custom 1992 Harley Davidson FXR Super Glide 1992 Harley Davidson FXRS Low Glide 1992 Harley Davidson FXRS-Conv Low Rider Convertible 1992 Harley Davidson FXRS-SP Low Rider Sport 1992 Harley Davidson FXRT Sport Glide 1992 Harley Davidson FXSTS Softail Springer 1992 Harley-Davidson FLHS Electra Glide Sport 1992 Harley-Davidson FXSTC Softail Custom 1993 Harley Davidson FLHS Electra Glide Sport 1993 Harley Davidson FLHTC Electra Glide Classic 1993 Harley Davidson FLSTN Softail Nostalgia 1993 Harley Davidson FXLR Low Rider Custom 1993 Harley Davidson FXR Super Glide 1993 Harley Davidson FXRS-Conv Low Rider Convertible 1993 Harley Davidson FXRS-SP Low Rider Sport 1993 Harley Davidson FXSTC Softail Custom 1993 Harley Davidson FXSTS Softail Springer 1993 Harley-Davidson FLHTCU Electra Glide Ultra Classic 1993 Harley-Davidson FLSTC Softail Heritage Classic 1993 Harley-Davidson FLSTF Softail Fat Boy 1993 Harley-Davidson FLTC Tour Glide Classic 1993 Harley-Davidson FLTCU Ultra Classic Tour Glide 1993 Harley-Davidson FXDL Dyna Low Rider 1993 Harley-Davidson FXDWG Dyna Wide Glide 1994 Harley Davidson FLHR Road King 1994 Harley Davidson FLHTCU Electra Glide Ultra Classic 1994 Harley Davidson FLSTC Softail Heritage Classic 1994 Harley Davidson FLSTF Softail Fat Boy 1994 Harley Davidson FLSTN Softail Nostalgia 1994 Harley Davidson FXDS-Conv Dyna Convertible 1994 Harley Davidson FXDWG Dyna Wide Glide 1994 Harley Davidson FXLR Low Rider Custom 1994 Harley Davidson FXR Super Glide 1994 Harley Davidson FXSTS Softail Springer 1994 Harley-Davidson FLHTC Electra Glide Classic 1994 Harley-Davidson FLTCU Ultra Classic Tour Glide 1994 Harley-Davidson FXDL Dyna Low Rider 1994 Harley-Davidson FXSTC Softail Custom 1995 Harley Davidson FLHR Road King 1995 Harley Davidson FLHT Electra Glide 1995 Harley Davidson FLHTCU Electra Glide Ultra Classic 1995 Harley Davidson FLSTF Softail Fat Boy 1995 Harley Davidson FLSTN Softail Nostalgia 1995 Harley Davidson FLTCU Ultra Classic Tour Glide 1995 Harley Davidson FXD Dyna Super Glide 1995 Harley Davidson FXDL Dyna Low Rider 1995 Harley Davidson FXDWG Dyna Wide Glide 1995 Harley-Davidson FLHTC Electra Glide Classic 1995 Harley-Davidson FLSTC Softail Heritage Classic 1995 Harley-Davidson FXDS-Conv Dyna Convertible 1995 Harley-Davidson FXSTC Softail Custom 1995 Harley-Davidson FXSTS Softail Springer 1995 Harley-Davidson FXSTSB Softail Bad Boy 1996 Harley Davidson FLHR Road King 1996 Harley Davidson FLHTC Electra Glide Classic 1996 Harley Davidson FLHTCU Electra Glide Ultra Classic 1996 Harley Davidson FLSTC Softail Heritage Classic 1996 Harley Davidson FLSTN Softail Heritage Special 1996 Harley Davidson FLTCU Ultra Classic Tour Glide 1996 Harley Davidson FXD Dyna Super Glide 1996 Harley Davidson FXDL Dyna Low Rider 1996 Harley Davidson FXDS-Conv Dyna Convertible 1996 Harley Davidson FXDWG Dyna Wide Glide 1996 Harley Davidson FXSTSB Softail Bad Boy 1996 Harley-Davidson FLHT Electra Glide 1996 Harley-Davidson FLSTF Softail Fat Boy 1996 Harley-Davidson FXSTC Softail Custom 1996 Harley-Davidson FXSTS Softail Springer 1997 Harley Davidson FLHR Road King 1997 Harley Davidson FLHTC Electra Glide Classic 1997 Harley Davidson FLSTF Softail Fat Boy 1997 Harley Davidson FXD Dyna Super Glide 1997 Harley Davidson FXDS-Conv Dyna Convertible 1997 Harley Davidson FXDWG Dyna Wide Glide 1997 Harley Davidson FXSTC Softail Custom 1997 Harley Davidson FXSTS Softail Springer 1997 Harley-Davidson FLHT Electra Glide 1997 Harley-Davidson FLHTCU Electra Glide Ultra Classic 1997 Harley-Davidson FLSTC Softail Heritage Classic 1997 Harley-Davidson FLSTS Softail Heritage Springer 1997 Harley-Davidson FXDL Dyna Low Rider 1997 Harley-Davidson FXSTSB Softail Bad Boy 1998 Harley Davidson FLHR Road King 1998 Harley Davidson FLHRC Road King Classic 1998 Harley Davidson FLHTC Electra Glide Classic 1998 Harley Davidson FLHTCU Electra Glide Ultra Classic 1998 Harley Davidson FLSTC Softail Heritage Classic 1998 Harley Davidson FLSTF Softail Fat Boy 1998 Harley Davidson FLSTS Softail Heritage Springer 1998 Harley Davidson FLTR Road Glide 1998 Harley Davidson FXD Dyna Super Glide 1998 Harley Davidson FXDL Dyna Low Rider 1998 Harley Davidson FXDS-Conv Dyna Convertible 1998 Harley Davidson FXDWG Dyna Wide Glide 1998 Harley Davidson FXSTC Softail Custom 1998 Harley Davidson FXSTS Softail Springer 1998 Harley-Davidson FLHT Electra Glide 1999 Harley Davidson FLHR Road King 1999 Harley Davidson FLHTCU Electra Glide Ultra Classic 1999 Harley Davidson FLSTS Softail Heritage Springer 1999 Harley Davidson FXDX Dyna Super Glide Sport 1999 Harley Davidson FXST Softail 1999 Harley Davidson FXSTB Softail Night Train 1999 Harley Davidson FXSTC Softail Custom 1999 Harley Davidson FXSTS Softail Springer 1999 Harley-Davidson FLHRC Road King Classic 1999 Harley-Davidson FLSTC Softail Heritage Classic 1999 Harley-Davidson FLSTF Softail Fat Boy 1999 Harley-Davidson FLTR Road Glide