Rink De Haan
I am no expert on this but when I was researching for a new 24v alternator for our 2001 SM with the Yanmar 75hp engine the Prestolite dealer advised me to stay with the original size.
The snap in replacement for the original is
For me completely sufficient and working like a dream.
But also interested in the advise of others
SM2k #330 Razor’s Edge