CutterComp

Rebuilding a 944S head for a customer in my machine shop and I've removed the 6 oil galley cup plugs for cleaning. They're 12mm and it's a size that seems hard to find in normal cup plug catalogs. I looked up the part number on the Porsche diagrams, or so I thought, and it seems to be 900-036-014-02. I ordered 6 and they arrived very much the wrong size at 30mm.

Perhaps I have the part number wrong. Could someone correct me? Thanks.

V2Rocket

https://www.porscheatlantaperimeterp.../N0119181.html ??

worst case the 12mm holes would be just right to run a 1/4NPT tap..

CutterComp

The cross galleys make them too shallow for 1/4 NPT, otherwise that would be my go to.

orig944

Are these the same as freeze plugs? Because a search on 12mm freeze plugs turns up several.

CutterComp

Yes, basically the same idea. The catch is there are many varieties of cup/freeze/core plugs in the same diameter, from very shallow to very deep. I need something on the shallower side and often the pics are non-existent or generic and there is little to no description of the dimensions. So it's a bit of crap shoot. Something like a Sealed Power 3812160 might work, but that seems out of stock a bunch of places or $5 a piece elsewhere. Thought I'd eliminate the guesswork ordering from Porsche.