Water pump AISIN or OEM Volkswagen

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.

21 atlas with 120k here. No major issues. Just regular maintenance stuff. Replaced a leaky water pump with is a normal thing.

Changed it at 9 years / 93k. Belt was still fine but the water pump started to leak so did the timing belt job at the same time. Also upgraded the water pump with one with a metal impeller

19 here and no issues, but all mk7s (gti/gli/R/s3/2.0a3s etc) are known for water pump and thermostat issues.

After wrapping up and turning it back on the CEL/MIL light comes on for Aux water pump and they replaced that too the next day.

2012 Jetta GLI - 94K miles (I bought at 50K). Two water pumps, one heater core, and carbonized valves. Not my best experience.

IDK - I was at 160K or so miles when I sold my '11 Tiguan. Sure, it ate a water pump, had the first gen timing chain tensioner replaced, needed cv axles, had a stuck fuel injector, lost an intake manifold, blew a turbo diaphragm, destroyed its engine mount bushings, struts and shocks went bad, needed seat covers replaced because they cracked and split and needed new tires every 25K or so...

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.

The tech noticed the water pump was leaking slightly. All got repaired under VW warranty which was lucky as it was around £1800 otherwise I think. Anyway, the weird thing is the car always lost coolant from new - it would drop to the min level, but they couldn't find a fault when I mentioned it until they physically found the water pump leaking after 4 years and 40k miles. I think the pump is plastic which may not be ideal.