hi I’ve developed a slow leak in the thermostat housing. 2000 lx470. I’m thinking there’s an o-ring or gasket in between the housing and the piece that is bolted to it.

Have any of you done this repair?

Do you have a part number?

I’ve asked AI and looked at parts diagram but I’m having a hard time nailing it down with 100% certainty. I don’t see any online videos or other posts for this specific thing.

thanks in advance.

I was able to figure it out. The dealer didn’t have a gasket shown there, nor it even listed as a separate piece. I used permatex water pump rtv.

here’s the video:

2000 Lexus LX470 Thermostat housing leak fixed ! 2UZ-FE (100 series)