Thermostat (143°F/62°C) – Fits Yamaha 2-Stroke Outboard 9.9-55 HP (Replaces 6F5-12411-01, 6F5-12411-02, 6F5-12411-03) GMC Inspect the spark plug and

Inspect the spark plug and ignition coil terminals for corrosion or damage

check the Engine Compatibility table on this page

designed for F80 to F100 series outboard motors from approximately 2005 to 2017

A physical inspection might reveal cracks or leaks in the pump housing

and DF6 series

Thermostat (143°F/62°C) – Fits Yamaha 2-Stroke Outboard 9.9-55 HP (Replaces 6F5-12411-01, 6F5-12411-02, 6F5-12411-03) GMC Inspect the spark plug andProduct Details This replacement Thermostat (143F 62C) Fits Yamaha 2 Stroke Outboard 9. 9 55 HP ensures your engine operates at the correct temperature for optimal performance and longevity. It is engineered for a wide range of Yamaha 2 Stroke models from 9. 9 HP to 55 HP, specifically covering years 19861997 including series 9. 9, 15, C25, C30, C40, C55, CV25, CV30, CV40, and CV55. This part provides a direct interchange for Yamaha part numbers 6F5