I was forced to go to the dreaded Auto Zone today, no one had the size freeze plugs that I needed, at least, not in brass, only steel, which rusts out. So i walked in there with rusty plug in hand and the parts guy (who actually seemed somewhat knowledgable) and he came back up with 6 brass plugs. Sweet.
He rings them up....one cent each.
I looked at him like he was crazy, and without even saying a word to him, he says;
Yup, that's the right price...we are getting rid of them, deleting them from the inventory.
6 brass freeze plugs for 6 cents.
You might just want to run out to Auto Zone and get a hand full. Don't ask for a kit, or by aplication... just tell them you want a hand full of X size plugs.