SIERRA COSWORTH RS 16V 2.0i (MOT N5S N5D N5B) BHP 205 + 220 KW 162 + 151 1990 > 1993. 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.
