Spark plug -NGK MR- Laser Iridium Premium MR7BI-8 - Vespa GTS300 HPE (ZAPMA360, ZAPMA3600, ZAPMA3602, ZAPMA362), Piaggio MP3 HPE 300/500 (ZAPTA2100, ZAPTA1202, ZAPTA1204)

NGK Iridium spark plugs currently represent the highest quality technical solution. They feature an iridium alloy on the centre electrode, which is welded on in a special process using a laser. The precious metal iridium is one of the hardest metals in the world. Its melting point is 2450 °C and is therefore particularly resistant to spark erosion. By using this metal, the service life is doubled on average compared to conventional spark plugs made of nickel.