Repairing Mercruiser Y Pipe?

[harringtondav]

I checked the oldest 4.3 I could find
1988. 44266T 1. Now 8M0115149. eBay has many under $200 for the 4426... p/ns . The trick will be finding one better than yours. All have the shushutters

 

[tank1949]

Ayuh,..... Are the tops of the pipes 3" round, or 4" oval,..??

4" and the shutter hinge pin holes are offset about 1/2" from center of 4" oval-thx!

 

[Bondo]

4" and the shutter hinge pin holes are offset about 1/2" from center of 4" oval-thx!

Ayuh,...... Match that, 'n you should have a y-pipe that fits,......

Most transom housin's have all the bolt holes necessary for the various bolt up patterns, with left over unused bolt holes,....