... shell ,intake and exhaust valve, piston ring, sel ring ,O-ring, and some kinds of oil separator and turbocharger and ... can offer: crankshaft, engine frame, engine bed, cylinder liner, o ring for cylinder liner, cylinder head packing, cylinder cover, indicator ... rod bearing, thrust bearing, crosshead, crosshead bearing, and all O rings, gaskets, sealing rings ,etc. B&W Model:L35MC; L35MCE; L42MC; L50MC; ...