Honda GX390 horizontal-shaft petrol engine

The Honda GX390 is an air-cooled, single-cylinder, four-stroke OHV petrol engine with a horizontal output shaft. The sheet provided by Phonie Motors states 389 cm³ displacement and 8.7 kW net power at 3,600 rpm. It supports machine powering or replacement studies, subject to mechanical installation requirements.

For engine replacement or integration, measure output-shaft diameter, length and shape, together with mounting-hole spacing. Power alone does not establish compatibility with a pump, generator or other machine. Check required speed, rotation direction and control access. Starting configuration and accessories should match the existing installation; provide the full reference and dimensions for selection.