So I ordered an alternator from Autozone where it say that it will fit my ‘07 Fit and it’s clearly a different shape. I didn’t really pay attention to the one in my car as it’s buried in there and thought it would fit but it’s clearly that side by side they are totally different.

But I found the right one so ended up reordering for overnight free delivery. Just never had anything say that it would fit and then be this obviously different.

 

Looks like it's listed to fit the Mazda 3, too. A google image search shows that mazda alternators look like this. Someone messed up!