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Currently running a fvp, which is just a gmb, and it works great.
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.
I've been running the aluminum GMB pump (1301280AL on Rockauto) on the 455 in my '72 Bonneville for about 5 years now with no problems.
I have 20-25k miles on a GMB pump now and it hasn't leaked a drop. We'll see how long it goes, but so far I'm happy with it.
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.
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 GMB were overall better than Pierburg.
In March 2026 on PartReview, water pump Pierburg were overall more popular than Pierburg.
The brands are equal by vote balance:
By number of reviews, water pump Pierburg surpassed GMB:
In March 2026, according to PartReview, water pump GMB and Pierburg have not taken top places in car-specific ratings. You can help by adding your review about these manufacturers.
If this comparison didn’t fully answer your question, there are many others on PartReview.
For example, comparisons of water pump GMB with: OEM Volkswagen, OEM Audi, GRAF, AISIN, Gates, Hepu, OEM FORD, OEM BMW, OEM Toyota, Saleri.
Also available: comparisons of water pump Pierburg with: OEM Volkswagen, OEM Audi, GRAF, AISIN, Gates, Hepu, OEM FORD, OEM BMW, OEM Toyota, 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.