The distributor cap transmits the high voltage reliably and dependably to the ignition cable and the spark plug connectors on the spark plugs and the appropriate cylinder. Technical Features Made of highly insulating, high voltage resistant material (e.g. phenol, epoxy resin) Depending on the version and requirement, lacquered inside and out as additional protection against condensed water and chemical effects System-specific connector area with SAE, DIN, serrated teeth or M4 connectors.