Water pump AISIN or OEM BMW

Mine was still going at 123k. I did have a shadow code (2E85) but that had been there for years. I decided to replace it out of caution and. Now have about 10k on the new one.

We used an Aisin water pump. We have had no problems with this water pump as of 11k miles on the engine rebuild now.

I had my timing belt done by not a Volvo specialist specifically, but a “European brand” mechanic. They used an Aisin pump / Gates belt kit and life is good.

There’s a really good kit that come with gates timing belt, tensioner, idler, Aisin water pump, Toyota cam and crank seals and a serpentine belt for $350 I used it and everything has worked perfectly

You should be fine with the Aisin. They were the OE manufacturer for a lot of makes.

My water pump lasted 420,000km

My water pump went out at 155k, 2006 BMW 325i auto

I’m at 180k, holding strong

Like others have suggested, either get an OEM or Aisin water pump or be prepared to make this an annual event.

My 1 year, \~6K miles Aisin WPT-108 pump failure story:

I have a 4A-FE Corolla E11. Changed timing belt, auxiliary belts, tensioner+spring, the whole lot last summer. The waterpump (Aisin WPT-108) was from a reputable online shop here in Europe (Autodoc). Last week I come to find the new pump dripping from the lower weep hole, so its the whole timing belt job all over again pretty much. No wierd bearing sounds. I did 6K miles last year if that.