Bleeder valve o-rings or whole assembly

[teleski]

2000 2.7 Have occasional condensation on my trunk lid. Tank was replaced by PO about 6 years/10k miles ago. Coolant cap changed to latest 04 recently. Fully cleaned out top area of tank around bleeder valve and drain. I can see now that I am definitely getting deposits all around the base of the bleeder valve assembly where it meets the top of the tank. I gently tightened the screws some but am still getting some condensation. Don't want to tighten any more, the seals should be doing there job at this point I would think.

So thinking of pulling it and replacing the O-rings. Where can I order the rings or better yet, a whole new bleeder valve assembly. They are not listed on Pelicans pages.