NGK Iridium Spark Plug

Each and every spark plug manufactured by NGK is designed to meet the most rigorous standards, ensuring there ability to deliver reliability and consistent performance under all conditions. Each plug plays a major role in helping improve performance, fuel economy and the overall optimum efficiency helping to make a significant contribution in the reduction of emissions.Iridium spark plugs - NGK's premium spark plug benefits from the addition of the precious metal 'Iridium' in it's construction. Harder than other precious metals used in spark plugs and with an extremely high melting point; allow for an even smaller diameter centre electrode to be manufactured (0.6mm) without compromising it's durability/service life. This extremely small iridium tipped electrode concentrates the available electrical energy which combined with the taper cut ground electrode design ensures this plug has superior gas flow qualities and lower voltage requirements, in turn offering improved performance in starting, idling and most importantly throttle response!