Sierra’s 18-3608 Thermostat Kit is designed for use in Yamaha outboard applications. The kit contains (1) 18-0844 Thermostat Gasket Cover and (1) 18-3540 Thermostat. It is interchangeable with Mallory 9-43177. Each Sierra product meets or exceeds the original equipment part it replaces.
Designed for use in Yamaha outboard applications
Contains (1) 18-0844 Thermostat Gasket Cover and (1) 18-3540 Thermostat
Temperature Rating: 122°F/50°C
Each Sierra product meets or exceeds the original equipment part it replaces
