Fits: OMC 50-60 HP 2-cylinder. Replaces: OMC. 384163, 387684, 389275, 585063, 586280. 9-tooth drive gear. Uses DV371* replacement drive gear, DVK71* 2-piece drive kit (fits current-model starters), SR371 repair kit. *NOTE: New OMC outboard starters use a 2-piece drive assembly while older OMC outboard starters use a 1-piece drive assembly. When ordering starter drives make certain you choose the correct drive because the new and old style OMC drive assemblies are not interchangeable!