another busted oil sensor housing thread

For the record, I found a thread somewhere comparing the T25 heads to the V25 heads, saying they’re both interchangeable. So yes, any 06-09 heads should work.

I’ve got a set of T25 heads, and I had a set of V25 heads – both from junkyards. I couldn’t tell the difference between them (other than the cam gears), but I didn’t look very hard. As in, valvetrain is the same, sensor locations are the same. Same headbolt pattern. But I didn’t go over every detail of comparing the two.

Hopefully that thread is correct, as I have T25 heads that will be going on my 06 Outback block (new, OEM).

Regardless, good luck! I’m hopeful you are able to get everything fixed.

PS – cool Z.

I ended up finding one at a Subaru shop near me (60 miles away). Had a good talk with the guy, really nice, seemed to know his stuff (Boxer Automotive, Richland, MI) He said cracking that sensor housing is certainly a “thing”, he did it ONCE, since after that you know better. He did say there is a kit for “fixing” it, costs $200 and only works if there’s enough left to work with and it’s dicey even then. Mine was too far gone. So, my “fix” was replacement. Moral of the story; one quarter turn too much will cost you $400. (used head 250, machine it 100, gaskets 50)
Stupid Tax
Welding is possible if you know a really good TIG guy, it’s caste aluminum and porous and contaminated and has soaked up a ton of oil. I certainly can’t do that, nor could I find one that would try, probably cost at as much as new head anyway.
I did wonder about using JB Weld or similar and literally packing the whole sensor back in there with a slug of it. That might work but of course I would never trust it long term. If it blows off you have about 1 mile before your oil is all gone, that I can confirm.