1999 Tartan 3700 shaft size

[wammy_ty]

I got a new-to-me 1999 Tartan 3700. We're doing some maintenance and I need to replace the propeller. The boat has the original Yanmar 38HP diesel. Before I haul her out, I'm trying to figure out the prop shaft size so I can order a new one. Does anyone with a similar boat happen to know the correct diameter? I'd really appreciate the help. Thanks!

 

[riggingroguerider61]

Hey, so most '99 Tartan 3700s with the Yanmar 3GM30 engine usually have a 1-inch prop shaft. Just to be sure, measure the hole in your current prop, some of the newer ones went with 1 1/8 inches. You could also double-check with Tartan or look at the surveyor's records