Spanner Size: 20,8 mm; Thread Size: M14 x 1,25; Thread Length [mm]: 9,5; Spark Plug: Unscrewable SAE connector, Nickel Middle Electrode, 1 - Earthed Electrode, no interference suppression, with gasket seat; Spark Position [mm]: 3,0; 9009816775, 9009816815, 9009816775, 9009816815; Engine spark plug,Spark plugs