If you're worried, replace both the water pump and thermostat. I would use a Mahle, Facet, or Wahler thermostat, and either a Hepu or Graf water pump.
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.
If yours is the later style timing kit, get the Aisin kit from Rock. That kit is ALL OE supplier, including an Aisin water pump.
Just wanted to update the community that it took me about 1.5 hours with me taking things slow to change the water pump on my Kentucky made 2018 Camry SE with 165 miles. I changed the water pump with an Aisin model with a new seal as well as drained and refilled the coolant. From what I understand there is a tsb about a false positive water pump error but in my case it was a part failure. After replacement the check engine code went away on its own immediately on first start.
The aisin on amazon might ship faster ? I would go Aisin tho
The OEM water pump is indeed prone to failure after 100k miles and is easy to replace. It will absolutely cause the death rattle.
i bought the dieselgeek timing belt kit which includes the Behr german Thermostat and Hepu water pump. he says that the stock OE style thermostat is better and the reman OE pump (which now uses metal impellors) is better than the hepu.
Aisin is of course the manufacturer of the defective one you are replacing. So there is that.
Bought an Aisin waterpump off ebay and installed during the swap but it is making an awful racket and has me concerned it is a fake or otherwise defective out the box. Not sure how to share a video here but it sounds like a loud buzzing and i dont remember the old waterpump making that noise.
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