550-0502 Ignition Kit HI4N 70-99BT
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Specifications
- Brand
- S&S
- Part Number
- 550-0502
- OEM Reference
- —
- Pack Quantity
- Sold as kt
- Category
- 2101-IGNITION GROUP
- VAT Rate
- 20%
About This Product
This S&S HI-4N ignition kit provides a comprehensive solution for upgrading the ignition system on 1970-1999 Harley-Davidson models. The kit is centered around the HI-4N module, which supports single-fire operation for improved engine smoothness and efficiency. By firing each cylinder independently, single-fire systems reduce vibration and can improve throttle response compared to traditional dual-fire setups. S&S includes the necessary components to convert or refresh the ignition system to a modern electronic standard, ensuring consistent spark and timing. This kit is a preferred choice for riders seeking a reliable, high-performance ignition setup from a trusted brand. This HI-4N single-fire ignition kit is sold as a kit.
Manufacturer part number: 550-0502.
Fitment
62 models Cvo/Custom 2 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1999 | Super Glide Screamin Eagle FXR2 |
| Harley-Davidson | 1999 | Super Glide Screamin Eagle FXR3 |
Dyna 8 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1992 | Dyna Glide Custom FXDC |
| Harley-Davidson | 1992 | Dyna Glide Daytona FXDB |
| Harley-Davidson | 1991 | Dyna Glide Sturgis FXDB |
| Harley-Davidson | 1993–1998 | Dyna Low Rider FXDL |
| Harley-Davidson | 1995–1998 | Dyna Super Glide FXD |
| Harley-Davidson | 1994–1999 | Dyna Super Glide Convertible FXDS-CON |
| Harley-Davidson | 1993–1998 | Dyna Wide Glide FXDWG |
| Harley-Davidson | 1971–1979 | Super Glide FX |
Fxr 12 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1984–1985 | Disc Glide FXRDG |
| Harley-Davidson | 1986 | Disc Glide FXRD |
| Harley-Davidson | 1984–1985 | Low Glide FXRS |
| Harley-Davidson | 1985 | Low Glide Custom FXRC |
| Harley-Davidson | 1986–1992 | Low Rider FXRS |
| Harley-Davidson | 1989–1993 | Low Rider Convertible FXRS |
| Harley-Davidson | 1987–1994 | Low Rider Custom FXLR |
| Harley-Davidson | 1987–1993 | Low Rider Sport Edition (Fxrsl) FXRS-SP |
| Harley-Davidson | 1984–1992 | Sport Glide FXRT |
| Harley-Davidson | 1986–1994 | Super Glide FXR |
| Harley-Davidson | 1982–1984 | Super Glide II FXR |
| Harley-Davidson | 1982 | Super Glide II FXRS |
Fxr Police 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1984 | Sport Glide Police FXRP |
Softail 20 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1995–1997 | Bad Boy FXSTSB |
| Harley-Davidson | 1980 | Electra Glide FLHC |
| Harley-Davidson | 1979–1983 | Electra Glide Classic FLHC |
| Harley-Davidson | 1979–1986 | Fat Bob FXEF |
| Harley-Davidson | 1990–1999 | Fat Boy FLSTF |
| Harley-Davidson | 1983–1984 | FXDG 1340 |
| Harley-Davidson | 1987–1990 | Heritage Softail FLST |
| Harley-Davidson | 1988–1999 | Heritage Softail Classic FLSTC |
| Harley-Davidson | 1993–1996 | Heritage Softail Special/Nostalgia FLSTN |
| Harley-Davidson | 1997–1999 | Heritage Softail Springer FLSTS |
| Harley-Davidson | 1977–1983 | Low Rider FXS |
| Harley-Davidson | 1984–1985 | Low Rider FXSB |
| Harley-Davidson | 1985–1999 | Softail FXST |
| Harley-Davidson | 1986–1998 | Softail Custom FXSTC |
| Harley-Davidson | 1985 | Softail EVO FXST |
| Harley-Davidson | 1998–1999 | Softail Night Train FXSTB |
| Harley-Davidson | 1988–1999 | Softail Springer FXSTS |
| Harley-Davidson | 1980–1982 | Sturgis FXB |
| Harley-Davidson | 1974–1984 | Super Glide FXE |
| Harley-Davidson | 1980–1986 | Wide Glide FXWG |
Tour Glide 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1980–1983 | Tour Glide FLT |
Touring 15 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1983–1987 | Electra Glide FLHT |
| Harley-Davidson | 1983–1998 | Electra Glide Classic FLHTC |
| Harley-Davidson | 1984 | Electra Glide Classic FLHTE |
| Harley-Davidson | 1996–1998 | Electra Glide Classic FLHTCI |
| Harley-Davidson | 1979–1993 | Electra Glide Sport FLHS |
| Harley-Davidson | 1996–1998 | Electra Glide Standard FLHT |
| Harley-Davidson | 1989–1997 | Electra Glide Ultra Classic FLHTCU |
| Harley-Davidson | 1996–1998 | Electra Glide Ultra Classic FLHTCUI |
| Harley-Davidson | 1995 | Electra Glide Ultra Classic Special Anniversary Edition FLHTCUI |
| Harley-Davidson | 1998 | Road Glide FLTRI |
| Harley-Davidson | 1994–1998 | Road King FLHR |
| Harley-Davidson | 1996–1997 | Road King FLHRI |
| Harley-Davidson | 1998 | Road King Classic FLHRCI |
| Harley-Davidson | 1980–1991 | Tour Glide Classic FLTC |
| Harley-Davidson | 1989–1996 | Tour Glide Ultra Classic FLTCU |
74ci (1200cc) Ohv Twin 3 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1970–1983 | Electra Glide FLH |
| Harley-Davidson | 1970–1977 | Electra Glide FL |
| Harley-Davidson | 1984 | Electra Glide Belt Drive FLH |
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