single-cylinder, four-stroke and air-cooled OHV,Rated speed: 3.000rpm, Engine power: 3.6hp, Displacement: 139cc,Drive system: self-propelled,Cutting width: 501mm(20inch), Cutting height: 25mm-75mm 5adjustment,Wheels diameter: Front: 8inch, Rear: 10.5inch,Deck: steel, Grass Bag Capacity: 55L,Fuel tank capacity:1.6L,Oil tank capacity:0.6L