... : 4UFCY, 4NFCY, 6UFCY, 6TFCY;Bock:FK(X)4,FK(X)26,FK(X)40, FK(X)50,ect air-conditioning compressor ... : 4UFCY,4NFCY,6UFCY,6TFCY,Bock:FK(X)4,FK(X)26,FK(X)40,FK(X)50,Pulley Typeclutch with adaptor ... any problem,please feel free to contact us. Bus A/C compressor Electromagnetic Clutch