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Harley/Dyna S Ignition Rotor (2-Pole For Dual Fire, 1 Sensor Systems)
Dyna S Ignition Rotor with a 2-pole design, correct for dual fire systems where the ignition sensor plate has only one sensor. The Dyna S is probably the most common ignition upgrade solution from OEM electronic ignitions on cone motors, 1970-99.
073021 D-7 (21 07 25, 6-10)