Home › Forum › Ask A Member › 1968 18hp vs 1972 25hp johnson › Re: 1968 18hp vs 1972 25hp johnson
July 23, 2018 at 11:01 pm
#79985
quote lindy46:
The water tube part numbers are the same for both engines: 313777
The drive shafts have different original number but both are replaced by part number 325800. So I assume they will interchange.
The drive shafts have different original number but both are replaced by part number 325800. So I assume they will interchange.
Unfortunately you cannot always work backwards like that. Only go forward with superseding numbers. Just because two parts supersede to the same number doesn’t mean they are the same part. Seems strange to think but its true.
Not to say that’s the case here, I would have to look into it.