The ignition coils of brands for Harley-Davidson Fl Shovel models from 1970 to 1984 offer an outstanding increase in performance. These coils manufactured in the United States create a high spark tension of over 30,000 volts, which leads to improved spark energy. They are compatible with the V-Fire III original ignition system and with other electronic and contact-based ignition systems from the accessory market. The coils are available in a 12-volt version with a single tower and are ideal for motorcycles with two spark plugs. Additional brackets are required for the assembly of these ignition coils. They are offered individually.