... Crank guide Structure compressor using widely in 12m passenger bus XH-56 N version Crank guide Structure compressor is using widely ... in large passenger bus and other vehicles. 1. Model: XH-56N(BOCK FK40)2. Displacement: 554cm3/rev3. Number of Cylinders ... , 24V,260mm X 210mm, 4Groove (2A and 2B) AC compressor XH-56 N(560 N version BOCK FK40,Bus compresssor)