I did go to my local FLAPS and brought home one of each size in their trays that were close to it, none of them fit.
And I am going to order a whole set to replace them all during the winter, just don't want to get into that big a job during summer driving time!
As a last resort, my next step would be a rubber expanding plug,
But I'm not a fan of Temporary fixes, besides I'm pretty sure the brass one I spun up this morning will work just fine.
I was just hoping somebody off the top of their head knew what size it was supposed to be.
Thanks!
