I know it's the coolant level sensor (I think...?) - coolant is leaking from the "bolt" itself, which is pretty strange.

Where can I get a new one (except from a Mazda dealership)?

Thanks...

 

Lol, are you talking about the bleeder plug? 'Cause if you are, I could use one myself. But, if you're not, I could still use another bleeder plug.

 

I think he really is talking about the coolant sensor.

It does have a seal, that might be broken in yours.

But also, check to see if it is loose, mine was leaking, but then I found out it was loose (I have no idea how that happened). I tightened it, and it stopped the leak.

 

Try Mazdatrix or a junk yard.

Rob

 

I bought a new one and it does not come with a o-ring seal. The best thing to do is take it and go down to a parts store and find one the same size.