Direct replacement engine for Honda GX200 Half Speed engines running at 1800rpm. This type of engine is most commonly used for machinery needed to run at 1800rpm and twice the amount of torque. All mounting points and dimensions are identical to a Honda. You will receive a reliable engine with a 2:1 reduction gearbox already attached to the unit. Measure your existing shaft with digital callipers before ordering to make sure you get the right model as this half speed engine is only available in a 20mm Shaft.