The ignition coils of brands for Harley-Davidson Fl Shovel [1970-1984] are manufactured in the USA and offer high performance for motorcycles. These coils create a voltage of over 30,000 volts and ensure efficient sparking. They are compatible with the original V-Fire III ignition system and other electronic and mechanical ignition systems that are available in the accessory market. The black individual tower ignition coils with a resistance of 5 ohms are specially designed for use for motorcycles with two or four spark plugs. Additional brackets are necessary for the assembly of these ignition coils.