... to 2-3 ton light-duty diesel vehicles. In the meantime, due to the change of ... duty diesel vehicles from China,which greatly opens up the overseas market for CY4102BQ diesel engines · ... main technical parameters of CY4102BQ Model CY4102BQ Type Vertical, in-line, water-cooled, four strokes, natural aspirated No. ... m passenger bus ect. CY4102 Vertical, in-line, water-cooled, four strokes, natural aspirated