Sierra International Ignition Coil For Yamaha 9.9/15 Hp 18-5112. 9 and 15 HP outboard engines. It is interchangeable with Yamaha Outboard 680-85570-09-00 695-85570-10-00 6E7-85570-10-00 and 6E7-85570-19-00. Each Sierra product meets or exceeds the...