... requirements,auxiliary devices such as air brake ,oil brake, air compressor,warm air heater and power steering pump etc.can be ... technical parameters of CY4102BQ Model CY4102BQ Type Vertical, in-line, water-cooled, four strokes, natural aspirated No. of cylinder-bore×stroke 4 ... , 6-7 m passenger bus ect. CY4102 Vertical, in-line, water-cooled, four strokes, natural aspirated