Yamaha 66M-12411-01 Thermostat Replacement Replaces Yamaha part 66M-12411-00, 6G8-12411-00, 6G8-12411-01, 6G8-12411-02, 6G8-12411-03 Suits Yamaha engines: F4AMH (1998-09), F4BMH (2010-17), F4LMH (2018+), F4SMH (2018+) F5AMH (2010-17), F5LMH (2018+),...
