Hi! I recently purchased a throttle body for my 2009 Corolla from rock auto. After some research I was under the impression that Denso or Aisin would be decent choices for me and a little more economical (money is tight lol). I received the part today and the box says both “Aisin” and “Aisan”. The part itself is labeled “Aisan”

I re-read the listing like 10 times and it only ever says Aisin.

To me, they seem to be different companies. I went by auto zone tonight and it was the same situation: Aisin box with “Aisan” part.

Are they the same thing? Hopefully I’m not being over dramatic. I just want to get my car running ASAP and I don’t want to put a junk part in.

Thanks in advance for any advice