Water pump AISIN or OEM BMW

Aisin TKF-005 has the 2 port pump and is otherwise identical to TKF-004 with the 3 port pump.

153k miles on my original WP. Still going strong too.

Has 137,000 miles on it original water pump. Still good to be used but don’t know when she’ll crap out. Very impressed that I lasted this long.

Mine started leaking around 145,000 due to bearing play. It is a do-able DIY driveway job.

Yes, Aisin TKH-002. I personally would only buy from Napa store or Carid.com. Napa is listed as authorized retail for my state. I personally wont trust rockauto for critical parts like this, I have has two experiences with previously used/tampered products from them. I can pay a little more from Carid.com and they shipped directly from Aisin warehouse, not Rockautos random low bid distributor. Amazon and Ebay have a bad reputation for fakes, no personal experience with that.

I use the same exact part that you bought. On mine I could see where they removed the word Lexus or Toyota from the mold. It's the same part as OEM. I replaced the water pump myself and it wasn't too bad but some of the bolts are difficult to get a socket on.

I used binder clips to hold the timing belt on the driver side cam gears instead of purchasing the tool. Purchased OEM thermostat from dealership and Aisin water pump / timing belt kit from RockAuto. First time doing one, was easier than I thought it was going to be.

Mine does that after replacing all timing components with Aisin kit (replaced it myself). And it’s a known thing that Aisin water pumps make “warbling” sound. I’m assuming that’s what you’re hearing

I don't trust the BMW oem pumps any farther than you can throw them

Aisin Timing and Waterpump Installed... not buying again as the plastic turbine broke and caused the headgasket to blow.