What size oil drain plug?

[LimitedEdition]

Originally Posted by Role

Not sure why anyone would suggest a 1/2in Universal Oil Drain Plug - no way that's going to fit into the original oil drain plug hole.

Needs to be more like a 3/8 size so it can seat all the way into the plug hole to then be tigthened and push outward.

It doesn’t look like you have thought this out. After the threads in the crankcase have been striped by the oil plug the hole is larger than the original size. And the fact that it actually worked is self explanatory.