I replaced mine a couple years ago after one sustained some minor damage. I always intended to have it repaired, to keep for spares, but never got around to it. I now have sold the boat. Best offer, you pay shipping
Star 18x21
Port 18x21.5
1.5" shaft
CUP 9
If you use your built in coffee maker, it could have a leak. We had the exact same issue and finally found it was caused by a leak from the back of the unit. when coffee was made.
If the damage, crack, was caused by a bad prop pull, there likely would be insurance coverage. Depending on your specific policy. Take it from a insurance guy. : )
If I remember right they are reversed threads. Are you trying to turn the right direction? Sorry if an insulting question but I broke one making that mistake. : )
Mercury may still be offering complimentary replacement of modules, injectors, fuel rails. I just had mine replaced and mercury supplied all parts and I paid labor. There should be topics on here about it.