Oil cooler plug up size
 

Hey guys I need the plug thread size for the driver side. The one where the hose leads to the oil cooler. I want to plug it up properly.
the oil cooler doesnt work and we dont have the water pump with a pipe.

heres an example pic. This is not my motor picture.
the hose next to the oil filter. Thats what I want to plug up.
right now we have a spark plug plugging that hose.
https://cimg2.ibsrv.net/gimg/www.yot...12c7d9e68f.jpg

if it's pipe thread than it's gonna be Japanese JIS tapered thread (metric) British pipe thread BSPT should work, too.
might be easier to drill and tap to SAE pipe thread.
I have seen plugs made out of rubber that you could clamp on, and Toyota even used from time to time. Bad thing is often got overlooked, covered in grime, hard to see. And if they blew out it can empty the system in seconds. And i saw a few blow out with disasterous results. so a metal plug is the way to go.

Bringing this up again. I never actually got a size. My temporary fix is not leaking. Thankfully it was just drops. Made it home before overheating.