Water pump AISIN or GRAF

I still prefer the Aisin water pumps over the new current Yamada made water pumps. Better fit and finish, fewer leaks/defects (lot of the Yamada pumps are bowed right out of the box), and Aisin breaks the edges whereas the Yamadas are almost cut your hands up levels of sharp

Replaced with an Aisin and no complaints

I got this kit and it’s working good, all that matters is the water pump is aisin

WP, like everybody else said. It sounds identical to my water pump on the same engine when it went. If you DIY it’ll be about $200 (Aisin pump plus new coolant), shop will charge $1000+. It’s an aggravating DIY job. Whether you DIY or have a shop do it, use a OEM replacement made by Aisin. Labor costs are too much to have to re-do it in a few years. I’ve seen prices down to $100 on sale.

If it *is* leaking you might want to consider replacing it with a Graf alloy-bodied pump which won’t be affected by heat and exposure to oil, the usual causes of eventual failure of the plastic pumps.

I used the same ASIN water pump on my 4GR FSE 65k miles ago. Been great. No leaks or any issues. They are the OEM manufacturer and do not want to create a separate mold for the same product. Every bit as reliable.

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

Replaced with Asin, failed in 7k miles. The propeller disintegrated on the second one.

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

the metal fins are spot welded like shit on these cheap metal waterpumps. my graf pump also started to leak from the weep hole after a year too