A starter 1 with an intermediate gear is disclosed having a housing 12 formed with first and second bearing portions 17, 18 between which an intermediate shaft 5 is supported. The second bearing portion 18 has a mounting aperture 22 to which a retainer 13 is inserted. The retainer 13 includes a screw having a distal end, formed with a male threaded portion 13a, and an engagement portion 13c formed between a head portion 13b and the male threaded portion 13a. The intermediate shaft has one end formed with a cutout surface 5a. With the intermediate shaft 5 having both ends supported by the first and second bearing portions 17, 18, the engagement portion 13c of the retainer 13 is inserted to the mounting aperture 22 into abutting engagement with the cutout surface 5a to retain the intermediate shaft 5 in a fixed place.