Spanner Size: 16 mm; Thread Size: M10 x 1,0; Thread Length [mm]: 19,0; Spark Plug: Platinum Middle Electrode, 1 - Earthed Electrode, Interference Suppression 5 kOhm, with gasket seat, Fixed SAE connector; Spark Position [mm]: 2,0; Fuel Type: Liquefied Petroleum Gas (LPG); MASERATI: QUATTROPORTE V; 920703707, E920703707, 896472; Engine spark plug,Spark plugs