... parts we can supply are piston, stuffing box, nozzle couple, fuel pump, plunger, bearing shell ,intake and exhaust valve, piston ring ... , sel ring ,O-ring, and some kinds of oil separator and turbocharger and so on. Also supply other types ... valve casing, exhaust valve roller guide, fuel pump complete, fuel pump roller guide, plunger w/barrel, fuel valve, nozzle, atomizer, spindle & guide, ...