... stroke, Air-cooled,Diesel engine, efficient and economical.Compact And Lightweight Aluminium precision pressure casting pump housing Convenient Full ... About:2 inch,30(m3/h),Self-priming pump 4.2PS,Diesel Engine,Single Cylinder,4-Stroke,Recoil Start. Description ... : ModelWDP20PumpWater Pump TypeSelf-priming pumpOutlet Size (inch)/(mm)2" ...