Re: 9.9/15HP T-stat gasket PN? Not on M.E.

Home Forum Ask A Member 9.9/15HP T-stat gasket PN? Not on M.E. Re: 9.9/15HP T-stat gasket PN? Not on M.E.


outbdnut2

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#72884

I know we don’t like to use aftermarket parts, but I thought I’d take a look and see what Sierra shows. Interesting that my 2004 Sierra catalog says the one on the left is 18-2905, replacing OMC 329920 (which may be the correct OMC number), but when I look online, what’s available now is an 18-2905-9 and looks like the middle gasket in your photo, and the 18-2905 without the -9 does not come up anymore. I guess they think the -9 should fit them both, which is probably wrong.

From the photos, it looks like the middle one can have that lower right hole trimmed off and it then would look like the one on the left, but there must be other differences since you are finding it doesn’t fit – but you already knew that.

The one on the right in your photo is Sierra 18-0397, or OMC 0318917 – both available at marineengine.com
Dave