A 140°F (60°C) thermostat is standard for many raw water (or open) cooling systems
within serial numbers 6854393 to OD469858
Designed for direct bolt-on installation
Corrosion at the terminals or a loose-feeling key mechanism are also indicators
ensuring it spins with the shaft to pump water
Ignition Coil – Fits Yamaha Outboard 9.9HP-40HP (Replaces 66M-85570-00-00, 6F5-85570-10, 6F5-85570-11, 6F5-85570-12, 6F5-85570-13) 175HP A 140°F (60°C) thermostat isProduct Details This replacement Ignition Coil Fits Yamaha Outboard 9. 9HP 15HP 20HP 25HP 30HP 40HP (Replaces 66M 85570 00 00) is designed for a broad range of Yamaha 2 stroke and 4 stroke outboard engines from 1989 through 2009. It provides a reliable, high performance spark for efficient engine operation. It serves as a direct interchange for Yamaha part numbers 66M 85570 00 00, 66M 85570, 6F5 85570 10, 6F5 85570 11, 6F5 85570 12, and 6F5 85570 13.