Anyone have a source for these? I can't find them anywhere and they are not the same as the stock mazda drain plug. Any help would be appreciated.

 

He's got them > www.absoluteradiator.com

 

Didn't see them on the site, but I sent him an email. It's worth keeping a stock of them because they break often.

Thank you!

 

Those plastic ones break so easily.
I recommend going to Ace Hardware and finding the threading and just getting a bolt,some washers,and a rubber seal.

That's what I've used on the air bleed with great success.

 

I used some drain plug I found at Advanced Auto, I just had to cut it to length. That lasted about a year so I said screw it and I found a couple of bolts that fit the size and thread perfectly, I had to cut the bolt to length also. The bolt has a 6 or a 9 stamped on it and I don't remember where it came from in the engine bay.

 

It shouldn't matter what grade the bolt is, but probably should be stainless.

 

If you are breaking the plastic ones then you are over tightening them. They do not require much torque and they have a rubber seal so sealing is not an issue.

 

a socket head cap screw with a wide flange, preferably stainless in the right thread, the right length with a copper gasket.

 

LOL, how about I fill you guys in on a 10 dollar secret. I have seen many a koyo with a bad drainplug. Find a spare 86-91 intermediate iron, pull the metal hex drain plug out of it (where the driver motor mount bolts up) and it threads right into the koyo. In fact, I have one in my car's koyo right now.

This is also nice because the hex plug is long, and you can use a socket and extension to remove it, versus fishing around up inside the plastic underbelly cover with a screwdriver.

 

ARCHIVE. +1.

I already went and bought the damn bolt... but I'll probably just do this instead.

 

You can paypal the 10 dollars at your convenience.