Ki-46 III - Traditional stepped windshield replaced with a smooth, curved, glazed panel extended over the pilot's seat giving a more aerodynamic nose profile. Engine power increased to 1,500 hp (Ha-112-II), extra fuel tank added in the nose.
Ki-46 III Kai - Defense interceptor / night fighter version. Equipped with two 20 mm cannon in the nose and one 37 mm (1.46 in) cannonin "Schräge Musik" style (upwards-aimed dorsal frontal position).