HARLEY DAVIDSON FATBOY 1340 1996 EVO ENGINE RED 8MM PERFORMANCE IGNITION LEADS. HARLEY DAVIDSON FATBOY 1340 EVO engine. They have a waterproof seal around the spark plug and are resistant to oil, water and under-bonnet corrosive materials.Ignition leads connect the distributor to the spark plugs and therefore form an important part of the overall car engine ignition system.
