HI-4N Ignition Module — Harley Davidson®, Gray

S&S CYCLE HI-4N Ignition Module — Harley Davidson®, Gray – 70-83, 86 Big Twin, 79-83 Touring, 70-85 Sportster

S&S CYCLE
2101-0345
550-0501

Compact HI-4N ignition module with single- and dual-fire functions, all-metal housing, and four rotary switches; not for fuel-injected models.

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The HI-4N ignition module combines single-fire and dual-fire functions in a single, durable unit engineered for reliable triggering and clean installation.

  • Single-fire and dual-fire function built into a single module
  • All-metal housing for improved heat dissipation
  • Ignition advance and timing degree markings on the metal flange
  • Sensor housings contain high-temperature-resistant samarium/cobalt magnets and advanced flux concentrators for accurate, reliable ignition triggering
  • Electronics fully enclosed to resist vibration, moisture, and dirt
  • Four rotary switches for ignition mode selection, advance rate, and rev limit
  • Made in the USA
  • Not for fuel-injected models

Includes ignition module only.

: 2101-0345
In Stock

Data sheet

Units
Each
Color/Finish
Gray
Brand
S&S CYCLE
For Make
Harley Davidson®
Harley Family
Sportster
Touring
Vintage Big Twin

This product fits the following vehicles. Use the filters below to narrow down the list if needed.

Manufacturer Model Family Year Notes
Harley Davidson Electra Glide Big Twin 1970
Harley Davidson Electra Glide Big Twin 1971
Harley Davidson Electra Glide Big Twin 1972
Harley Davidson Electra Glide Big Twin 1973
Harley Davidson Electra Glide Big Twin 1974
Harley Davidson Electra Glide Big Twin 1976
Harley Davidson Electra Glide Big Twin 1977
Harley Davidson Electra Glide Big Twin 1970
Harley Davidson Electra Glide Big Twin 1971
Harley Davidson Electra Glide Big Twin 1973
Harley Davidson Electra Glide Big Twin 1974
Harley Davidson Electra Glide Big Twin 1979
Harley Davidson Electra Glide Big Twin 1980
Harley Davidson Electra Glide Big Twin 1981
Harley Davidson Electra Glide Classic Big Twin 1979
Harley Davidson Electra Glide Big Twin 1980
Harley Davidson Electra Glide Classic Big Twin 1981
Harley Davidson Electra Glide Classic Big Twin 1982
Harley Davidson Electra Glide Classic Big Twin 1983
Harley Davidson Electra Glide Sport Touring 1979
Harley Davidson Tour Glide Touring 1980
Harley Davidson Tour Glide Touring 1981
Harley Davidson Tour Glide Touring 1982
Harley Davidson Tour Glide Touring 1983
Harley Davidson Tour Glide Classic Touring 1980
Harley Davidson Tour Glide Classic Touring 1981
Harley Davidson Tour Glide Classic Touring 1982
Harley Davidson Super Glide Big Twin 1971
Harley Davidson Super Glide Big Twin 1972
Harley Davidson Super Glide Big Twin 1974
Harley Davidson Super Glide Big Twin 1975
Harley Davidson Super Glide Big Twin 1976
Harley Davidson Super Glide Big Twin 1977
Harley Davidson Super Glide Big Twin 1978
Harley Davidson Super Glide Big Twin 1979
Harley Davidson Sturgis Big Twin 1980
Harley Davidson Super Glide Big Twin 1974
Harley Davidson Super Glide Big Twin 1975
Harley Davidson Super Glide Big Twin 1976
Harley Davidson Super Glide Big Twin 1977
Harley Davidson Super Glide Big Twin 1978
Harley Davidson Super Glide Big Twin 1979
Harley Davidson Super Glide Big Twin 1980
Harley Davidson Super Glide Big Twin 1981
Harley Davidson Fat Bob Big Twin 1979
Harley Davidson Fat Bob Big Twin 1979
Harley Davidson Fat Bob Big Twin 1980
Harley Davidson Fat Bob Big Twin 1981
Harley Davidson Fat Bob Big Twin 1982
Harley Davidson Fat Bob Big Twin 1986
Harley Davidson Low Rider Big Twin 1977
Harley Davidson Low Rider Big Twin 1978
Harley Davidson Low Rider Big Twin 1979
Harley Davidson Low Rider Big Twin 1980
Harley Davidson Low Rider Big Twin 1981
Harley Davidson Low Rider Big Twin 1983
Harley Davidson Sportster Sportster 1972
Harley Davidson Sportster Sportster 1973
Harley Davidson Sportster Sportster 1974
Harley Davidson Sportster Sportster 1975
Harley Davidson Sportster Sportster 1976
Harley Davidson Sportster Sportster 1977
Harley Davidson Sportster Sportster 1978
Harley Davidson Sportster Sportster 1970
Harley Davidson Sportster Sportster 1971
Harley Davidson Sportster Sportster 1972
Harley Davidson Cafe Racer Sportster 1977
Harley Davidson Cafe Racer Sportster 1978
Harley Davidson Sportster Sportster 1972
Harley Davidson Sportster Sportster 1973
Harley Davidson Sportster Sportster 1974
Harley Davidson Sportster Sportster 1975
Harley Davidson Sportster Sportster 1976
Harley Davidson Sportster Sportster 1977
Harley Davidson Sportster Sportster 1978
Harley Davidson Sportster Sportster 1979
Harley Davidson Sportster Sportster 1980
Harley Davidson Sportster Sportster 1981
Harley Davidson Sportster Sportster 1982
Harley Davidson Sportster Sportster 1983
Harley Davidson Sportster Sportster 1984
Harley Davidson Sportster Sportster 1985
Harley Davidson Sportster Sportster 1970
Harley Davidson Sportster Sportster 1971
Harley Davidson Sportster Sportster 1972
Harley Davidson Roadster Sportster 1978
Harley Davidson Roadster Sportster 1979
Harley Davidson Roadster Sportster 1980
Harley Davidson Roadster Sportster 1981
Harley Davidson Roadster Sportster 1982
Harley Davidson Roadster Custom Sport Sportster 1983
Harley Davidson Roadster Sportster 1984
Harley Davidson Roadster Sportster 1985
Harley Davidson Sportster Sportster 1977
Harley Davidson Sportster Sportster 1978
Harley Davidson Sportster Sportster 1983
Harley Davidson Sportster Sportster 1984
Harley Davidson Sportster Sportster 1985
Harley Davidson Sportster 1984