Water pump AISIN or Pierburg

The AISIN WPT-190 I bought on Amazon for $142 was was legit OEM. AISIN box etc. Toyota was scratched off the unit as expected.

AISIN WPT-190 is $143 on Amazon. Directly comparing it with one from bought from dealer. Aside from the box, they look identical with the same plastic wrap.

The water pump is probably the one part on any car I wouldn't cheap out on. Just get an Aisin as the other commenter said.

Aisin. The bearings in the idlers are better, the tensioner is better, and the water pump wont fail on you in 20k miles.

I just replaced the water pump on my 2011 today. Took me about 1.5 hours and was 150$ from Amazon. Aisin pump.

Replace water pump. 100% oem or aisin.

Use a good pump like a Aisin, cause you don’t want to do it again in a year.

However the pierburg shouldn't crack as it's all aluminum. That doesn't mean it'll last any longer. My original one (n54) failed at about 60k. Replaced with factory. Then replaced that one with pierburg as I was doing oil pan gasket and figured might as well since I'm in there at about 90k. The pierburg one failed at 10k miles (electronics jammed up somehow…I’m guessing some sort of freak surge or something as it’s a pretty simple design). Anyway replaced that with pierburg again and going strong albeit it’s only been 30k miles on the new one.

I find it weird that the water pump went bad since i changed it about a year ago with a Pierburg water pump. Next morning my car started overheating. Tried bleeding the system and the pump wouldn’t engage.

Aisin is of course the manufacturer of the defective one you are replacing. So there is that.