How to determine if lower unit will work on my motor?

sdreffs

Seaman Apprentice
Joined
May 9, 2009
Messages
49
How would I determine if a 35 HP Johnson motor lower unit will work on my 30 HP Johnson. The owner of the 35 HP is not sure of the year, he is going to send me the serial numbers. My 30 HP is a 1984 through prop exhaust 20" shaft.
If the lower unit will not work is there a way to swap other components (leg, etc) to make it work?

I can buy the 35 HP that is not running to use for parts for the 30 HP but I don't know if the parts will be compatible? Is there an easy way to determine??:confused:
 
Last edited:
Top