Thermostat & gasket for Yamaha 4hp 2 stroke outboard 4 hp (not 5Hp) 6e0 models
2 stroke "6E0" MODELS. Yamaha 4 hp, 4AC, 6E0. The 4hp and 5hp blocks are interchangeable but internals are different. If you have '6E3' then you have the 5hp block which is slightly different and needs different gaskets and thermostat.