Water pump AISIN or Pierburg

RockAuto Aisin with the logos ground off. That’s when you know it’s the real deal.

Aisin only. It's the Oem.

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

The BMW original from pierburg last way longer than 60,000 miles, more like 90,000 miles. Plus, as time went on they made them better than before. Getter a new one today will last longer than the original one.

We routinely get cars with 120,000 miles on their first water pump too.

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

My car had a Pierburg on it for over 100k miles and 12 years. It still worked great before I replaced it out of caution.

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 replaced my water pump last weekend with a new pierburg pump from ecs tuning, everything went smoothly, no leaks, etc.

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

Honestly, personally I wouldn't get a Pierburg. Got one, the all aluminum one and it failed right away, first day of driving. It was hard to push in the plug as well. And they are made in China these days, cheaply made it seems.