Get a pierburg if you can for the water pump. They’re more OEM than Mehle is for water pumps even though both are OE manufacturers.
Graf & Hepu brand water pumps are both metal impeller high quality oem suppliers
I also used a kit from FCP Euro about 8 years ago and it included a HEPU water pump that worked fine for 7 years until I dismantled that car.
Pierberg all aluminium has been good in mine.
Been on my Pierburg full metal one a few years now, no complaints
I replaced mine with a pierburg one. after install it was fine till I hit a decent bump, which led to overheating limp mode (i stopped the car as soon as this happened).
I kind'a have some project and I need to use Pierburg CWA50, all I got in my country is this pump from benz (**A0005001986**), is it same model as Pierburg CWA50? Because the head pump is same but the connector is different (facing upwards). I tried to find specs from this model, the result is empty, can't find any clue about flow rate. I do have original code from Pierburg, which is **7.04933.56.0**, but can't find flow rate either.
I am dealing with a similar issue right now on my CJAA which I changed the timing belt in April this year. Leaking from same spot. Hepu waterpump.
when my original pump went bad, i went to Peirburg so that the plastic housing wouldnt crack. Pump lasted about 20,000 miles, bought another one from fcp euro for the lifetime warranty but this one lasted 20 mins before i got those same codes and overheated.
I've had 2 of these die in less than 1 year. Junk!
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If choosing water pump across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.
We compare water pump across these categories:
In March 2026 on PartReview, water pump Hepu were overall better than Pierburg.
In March 2026 on PartReview, water pump Hepu were overall more popular than Pierburg.
By vote balance, water pump Hepu surpassed Pierburg:
By number of reviews, water pump Hepu surpassed Pierburg:
In March 2026, according to PartReview, water pump Hepu led more car-specific ratings than Pierburg:
Hepu are chosen by owners of cars such as: Volkswagen Phaeton, and others.
Water pump Pierburg have not yet taken leading positions in car-specific ratings. You can help by adding a review and specifying your car.
If this comparison didn’t fully answer your question, there are many others on PartReview.
For example, comparisons of water pump Hepu with: OEM Volkswagen, OEM Audi, GRAF, AISIN, Gates, OEM FORD, OEM BMW, OEM Toyota, GMB, Saleri.
Also available: comparisons of water pump Pierburg with: OEM Volkswagen, OEM Audi, GRAF, AISIN, Gates, OEM FORD, OEM BMW, OEM Toyota, GMB, Saleri.
You can also see who is better among other water pump manufacturers: OEM Audi or OEM Volkswagen, GRAF or OEM Volkswagen, AISIN or OEM Volkswagen, Gates or OEM Volkswagen, Hepu or OEM Volkswagen.
