When I do side jobs I use an aisin branded water pump and timing belt tensioner. The aisin kit is top notch.
The inverter water pump is a fairly common failure on the second gen Prius. The pump runs anytime the car is on, and it just wears out.
I went from that just up to the Pierburg ones and it was a night and day difference.
have a pierburg water pump, it’s holding up pretty well.
I bought one a couple weeks ago. It went right in and works perfectly so far. It's a really easy install too.
The Pierburg pump is an all aluminum upgrade. I put one in a couple months ago. It works great, less prone to leaking and I have only ever read/heard good things about it. It is even a few dollars cheaper than the OE VDO pump.
Used Aisin for my 2000lx.
I too chose pierburg from fcp. Questionable weather it\u2019s any better than oem. I appreciated the all aluminum housing of the pierburg as it provides one less failure point which is the possibility of the plastic cracking due to an over torqued hose clamp.
100% oem or Aisin, I bought a knock off on amazon and it failed in 2 months.
Like others have suggested, either get an OEM or Aisin water pump or be prepared to make this an annual event.
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