yes ,its an oem steel mod one .I tried to install a kyosho plastic 46 but wile it fits in the center mount with the top plate installed when you put it in the chassis it pinches together and locks up.I did try to shave it but my impresion is that the bearing placement dimension together with the gears thickness means it cant fit with out a new top plate 'longer front to back'and the chassis mount holes changed for length also.