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Dyna S Ignition

The Dyna ”S” is a high performance ignition system that installs into any Big Twin 1970-1999 or Sportster 1971-2003 cam cover. It features a magnetic rotor (sender) in combination with base plate mounted receiver. Models equipped with factory electronic ignition systems require a complete advance unit assembly.

Available as dual fire - both cylinders fire at the same time (like stock) - or single fire, i.e. each cylinder fires individually at the end of its compression stroke.

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Street use with 5 Ohm coils only! 3 Ohm coils for race only! Do not use with WW 12-225!

Tach-Adaptor must be used whenever a Dyna S Single Fire ignition system is installed on a H-D with electronic tachometer. WW# 12-518 works with most tachs on the market. Some exceptions require WW 12-519 (T103). In this case we refund the non-compatible adaptor.
Ignition system »Dyna S« by Dynatek; fits Big Twin 1970-1999, Sportster 1971-2003; 12 V; USA
W&W# Picture net price* Available from warehouse Germany?
12-250 Dyna S Ignition »Dual Fire«; primary resistance: 5 Ω $152.66 kit
in stock
12-251 Dyna S Ignition »Single Fire«; primary resistance: 2 x 5 Ω $180.39 kit
in stock
* United States of America: Tax free shipping. Please check your local import fees.

Spare parts:


  • Advance Weight Assembly Stainless

    Advance Weight Assembly Stainless High quality advance unit which features corrosion resistent stainless steel plate, shaft and studs. The weights are made from heat treated steel, coated with ...

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