AISIN WPT-137 New Engine Water Pump with Gaskets - Compatible with Select Lexus GS300, GS350, GS450h, IS250, IS300, IS350, RC300, RC350

I'm very happy with this part. It was identical to the original part. Much less expensive than going through the dealer, of course. It certainly isn't an "easy fix" but it's a very do-able DIY job to replace a water pump. It was one of those very rewarding fixes because of the dramatic change in engine noise, and coolant leakage.

Worked perfect for my Lexus 2006 GS300 Replacement water pump. ASIN is OEM for Lexus and Toyota.

Price is very competitive as it similar to an original product, no hassle on fitment as it assembles perfectly and intended. Installing will be easy if all preparation is considered; proper tools, parts, and safety precautions working on vehicles.

Was concerned about they would remove the Toyota and Asian labels. Received one with only the Toyota label removed which make more sense. Compared with OEM part’s picture, the differences are the design of pulley mount and bleeding part. It could be just new designs. I spent a whole afternoon to replace the water pump, thermostat, and radiator cap . Compared with the old pump, I could feel that they were both well made. Upon the review, I have put more than 400 miles on the new pump. No leak. No noise. Literally saved a new iPhone gift money for my wife. Totally worth it.

Saved myself hundreds of dollars replacing this myself, just don't want to give 5 stars because this is the same manufacturer lexus used and the first pump didn't last as long as i would have expected. But it is the i am parts with the name scratched off.

The original water pump on my 2007 IS350 developed a rattle. It lasted 110k miles. Plan was to bring it to a shop to replace until I heard it'd cost nearly $1k to do the job. Ordered this part, went full on DIY, and replaced it with the help of DIY info and videos. Can't thank those meticulous brave souls who documented steps so well. AISIN is an OEM brand Lexus uses. This part is an exact fit. Some reviewers mention that it is not genuine AISIN because of shaved off stamping. FALSE. What they shaved off was the Toyota stamping for legal reasons. Since this is a genuine part made by AISIN for Toyota, they have to shave off the Toyota stamp because it's not sold as a Toyota part through the dealership but as an OEM part.

As soon as my 2006 IS250 hit 90,000 miles, my water pump started to whine. I took my car in to a local Lexus dealer for an unrelated maintenance and the dealer advised me that my pump is ready to go. He quoted $980 for replacement of just the water pump. Dealer also suggested I change the serpentine belt for another $200, even though my belt looked fine. I thought $1200 was a bit much so I told the dealer I'd like to think about it but I really wanted to check and see how much other mechanics would charge. I never did call another mechanic, but rather I decided to research this to see if I can do these repairs myself. Club lexus and youtube are great resources, but I admit I was quite hesitant to tackle on this repair as I am not mechanically inclined. I am more of an office guy as I am really good on spreadsheets but not on cars. However, I wanted the satisfaction of being able to do this myself. After I bought this pump, a serpentine belt and tools, I watched, almost to the point of studying, the youtube videos several times and read the club lexus instructions to get familiar with the steps before tackling on the actual job. This water pump looks just like the OEM product, except with the model number scratched off.Overall, this job took me just over 4 hours to do the repairs. I think dealer said it would take about 3 hours. Take pictures along the way is helpful just in case. It's been about a month since I made the repairs and so far so good. The pump is holding up nicely and I saved enough to purchase a trip to Hawaii. Aloha!

I'm just writing a review because others have questioned if this is a true OEM product. I recently purchased a JDM motor for an engine swap after throwing a rod in my motor. The new-to-me JDM engine appears to have had the water pump replaced at some point. The water pump on the engine is marked AISIN and has Toyota on it where this one is grinded down. It too has the flower style pulley mount like the one in this listing does. My original motor that I am replacing does not have the flower looking pulley mount so they must have updated the design at some point. This is a very good deal for an OEM component. I highly recommend.