lower unit help

[raymondridge]

I have several evinrude lower units I have saved over the years and I have one I can't identify. The number on it is 1643-9539. The water pump number is 46-77821. Can anyone tell me what is is off of. Thanks in advance.

 

[F_R]

Re: lower unit help

I believe that's a Mercury. That gearcase number shows as about 600 bucks for a new one.