Graf is fine, I've put a bunch of them in 240s over the years, none have failed yet.
Graf is good.
I ended up going with the water pump here: Graf Water Pump . There is no difference in engine performance or fuel economy with the new pump. But it will take longer to warm up, especially in colder weather.
Get a Gates water pump. Good quality part for a good price.
I personally replaced the water pump on my Tiguan with a Graf aluminum pump. The only issue I've had was the rubber o-ring on the temp sensor leaking. I replaced all the rubber seals with Rein branded ones and no more leaks.
As for the aluminum one made by/marketed as Graf, there are a few issues in my experience. First, the rubber gasket from the housing to the block is known to fail by tearing where the link in the gasket between the two passage connect. I think this is because the gasket does not precise fit in the channel for the seal machined into the housing. On the one that just put on an engine I just put in my '12 Tiguan, I cut that link out, effectively making two seals and relieving the tension in the seal. Next, the O ring seal supplied for the temp sensor is known to disintegrate, so I got a factory seal. Last, if your engine has a late water pump currently with the clip that holds in the temp sensor, the two mounting bolts to the block at the sensor will be too short for the aluminum pump housing, so you need to get the bolts for an early water pump. Honestly, as long as you don't have any oil leaks, the latest factory water pump is fine. I generally don't trust aftermarket water pumps, as I have had too many fail over the years (not on these engines, just in general). I used this Graf aluminum water pump as a test. The quality seems good, but time will tell.
I replaced the water pump in 3/2021. By 2/2022, it started leaking, so I replaced it under warranty. It leaked again in 1/2023, leading to a 3rd replacement. Now, one month in, the new pump is already leaking, this is driving me insane. This will be my 4th replacement in the last 3 yrs! These are GRAF PUMPS.
I had a gates kit on my Subaru and the water pump failed and leaked after less than 1000 miles.
The water pumps i’ve seen leak a few times on the v6 hondas.
Gates is crap. Bought their water pump and it failed less than a year and leaked the whole time.
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