... engine model K4100ZDTypewater-cooled, inline, 4-storkes, swirl combusion chamber Constant Output (kW/kVA)42/52Speed (r/min)1500Cylinder No.-Bore*Stroke(mm)4 ... engine model R4105ZDTypewater-cooled, inline, 4-storkes, swirl combusion chamber Constant Output (kW/kVA)56/70Speed (r/min)1500Cylinder No.-Bore*Stroke(mm)4 ... Electric Start Diesel engine model R6105ZDTypewater-cooled, inline, 4-storkes, swirl ...