Guess where the part was made.

The last one I got in 2009 was henco in Mexico. Pretty sure about that.
Anyway, it leaked right out of the box.
I always test them with air and the solder joint on the big line leaked on that one.
I had to solder that up before I put it in.
Since the are "special order" at Advance, I didn't want to wait for another one.
And if anyone is finding these that are spot on, more power to you.
Remember, I'm changing them out in the car.
If the box was out, that might make a difference.
But on these couple of points, I don't see how.

I assume this, of course, means South Korea.