1957 7.5 hp Johnson part number ?

[jaxflg8r]

Finishing up on the rebuild of this Johnson.

Is there a seal under the waterpump between the waterpump and the lower unit? I have not pulled apart yet, but I have a feeling that is something I should replace while it is apart. Anyone have a diagram or know the part number?

Thanks.

 

[F_R]

Re: 1957 7.5 hp Johnson part number ?

Drive shaft seal is 300599
Gasket for the seal plate is 303339
Powerhead gasket is 304314
Carbon seal plate gasket is 303355
Carbon seal o-ring is 303347

Take a look at the pump before you order parts. If the aluminum pump housing is worn, order a complete water pump kit. The new ones are different than the original.

 

[jaxflg8r]

Re: 1957 7.5 hp Johnson part number ?

Thank you.