Coolant crossover plug dimensions??

Im trying to find the size of coolant crossover plug o ring size anyone have .. i want to switch to viton o ring.
Who still makes the plugs .. been long time i bought one and o ring ripped.
Thx

I took tube and housing to parts store

They have the master kit.

1115 I think we’re the number I used

Tubes fit snug

Or buy the kits.

I had gotten both standard and metric being they are cheap and may need at another time

Stock crossover tube burping plug are 9/17 ID 11/16 OD ×1/16 THICK for stock o ring. I had a plug made years ago and now i need to get mine measured and start the hunt

Buy a SS one from billet pro shop and be done with it.