Genuine Tohatsu Thermostat to fit the following models
2–2.5 hp
Tohatsu MFS2, MFS2A, MFS2B
Tohatsu MFS2.5, MFS2.5A, MFS2.5B
3.5–4 hp
Tohatsu MFS3.5, MFS3.5A, MFS3.5B
Tohatsu MFS4, MFS4A2, MFS4B, MFS4C
5–6 hp
Tohatsu MFS5, MFS5A2, MFS5B, MFS5C
Tohatsu MF6, MFS6, MFS6A2, MFS6B, MFS6C
If unsure please get in touch with your outboard model and serial