Original Germany bus air conditioner compressor Bitzer 4NFCY, 4PFCY, 4TFCY etc models. Original Germany bus air conditioner compressor Bitzer brand.Model No.:F400, F600.4NFCY, 4PFCY, 4TFCY6NFCY ... for Bitzer compressor.such as shaftt seal, piston, con. rod. bush, valve plate, valve, gasket, oil pump, etc Original Bus Air Conditioner compressor Bitzer