Guangzhou POLLYSU trade co.,ltd is mainly dealing with all kinds of bearings and spark plugs .and some other spare parts .such as timing chains ,oil seal ,brake shoes ,piston .piston ring etc .welcome you to make an inquiry from my company Spark plug specification ( Motorcycle Spark plug ) D8TP : Size M12 X 1.25mm1.Reach : 19mm 2.Hex :18mm3. Gap :0.8mm 4.Thread Diameter : 12mm 5.Seat : Gasket 6. Terminal : Removable D8TP : Can Used To Replacement NGKBP6ES. . CHAMPIONN12YC ,,BOSCH W7DC.. ETC 1)..Multi-ribsdesigned onthe insulator can easily eliminateflashover 2)..Insulatormadeof95%purealumina,strongresistanceofheatshock,greatmechanic alandelectricalfeatures,superinsulation 3)..Nickelplatedhousingpreventsoxidationandcorrosion,heatcrimpingprocessensuresabsolutegas -tightfit 4)..Innersealingwithconductiveglassensuresafineconductivityandsealing 5)..Multi-layergasketareelasticlystrong,andreliableinsealing 6)..Coppercoreelectrodepreventsoxidationandcorrosion,goodelectricand heatconductivity,longservicelife.