Water pump AISIN or Pierburg

PartReview Score

Rank #1 in ranking

117

4.0

Leaks

3.3

Noise

3.2

Overheating

3.6

Owners' choice:

Toyota 4runner

PR Score

Ranking

Votes

Reviews

Average rating

Properties

Car

PartReview Score

Rank #4 in ranking

3.5

Leaks

3.8

Noise

4.8

Overheating

2.8

No data

Reviews

All

AISIN

Pierburg

AISIN › Water pump

DennisHakkie 8 Jan 2026, 14:22

Rating 5.0

When I drove a Volvo I just did a belt and water pump every year. OE Aisin one every time.

Pros: OE Aisin

Vehicle: Volvo

AISIN › Water pump

Surkovo20 5 Jan 2026, 17:15

Leaks:
Noise:
Overheating:

Rating 5.0

Aisin is what my shop used when mine started to die at 140k. No problems so far at 150k

Pros: no problems so far

Mileage: 150000 km

AISIN › Water pump

Network_ant 29 Dec 2025, 07:52

Rating 5.0

Go for Aisin, Toyota just repackages same pump so skip the brand tax.

Pros: skip the brand tax

Vehicle: Lexus

AISIN › Water pump

Trident_77 29 Dec 2025, 01:34

Rating 5.0

Aisin pump $67 on rockauto. I know they make a ton of Toyota OEM water pumps, not sure about this specific model.

Pros: OEM water pumps

Vehicle: Toyota

AISIN › Water pump

Unimurph83 11 Dec 2025, 02:56

Rating 5.0

I'd swap them out for multi-layer steel gaskets and new head bolts. Given the engine is in good order and hasn't had a gasket failure yet I'd say you'd be fine skipping the head decking and just install the new gaskets after a good cleaning.

Pros: good order, easy cleaning

Vehicle: Subaru

AISIN › Water pump

rjginca 8 Dec 2025, 01:21

Rating 5.0

Aisin is the maker of Toyota water pumps.

Pros: Toyota water pumps maker

Pierburg › Water pump

iammiscreant 29 Dec 2025, 04:22

Overheating:

Rating 3.0

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).

Pros: fine after install

Cons: overheating limp mode

Pierburg › Water pump

lema_conductor 16 Nov 2025, 02:54

Rating 3.0

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.

Part number: A0005001986

AISIN › Water pump

rts-90 25 Jan 2026, 17:44

Leaks:

Rating 2.0

I used the same kit on my tl and the water pump started leaking 2 years in.

Cons: water pump started leaking

AISIN › Water pump

rts-90 18 Jan 2026, 00:32

Rating 2.0

I went with a aisin kit and at the 2 year mark the water pump went.

Cons: water pump failure

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Show all

Which water pump to choose — AISIN or Pierburg?

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:

Comparison of water pump AISIN and Pierburg

PR Score.
Overall ranking.
Vote balance.
Average rating.
Number of reviews.
Feature ratings.
Car owners’ choice.

Which water pump are better — Pierburg or AISIN?

In March 2026 on PartReview, water pump AISIN were overall better than Pierburg.

AISIN received a PR Score of 79 out of 100, and Pierburg scored 64 points.
AISIN ranked 1 in the overall ranking, and Pierburg ranked 4.
The average rating is higher for AISIN (4) than for Pierburg (3.5).
Water pump AISIN have better feature ratings than Pierburg:
- Noise - owners believe, that this property for Pierburg is better than AISIN.
- Leaks - drivers claim, that this property for Pierburg is outperforms AISIN.
- Overheating - reviews suggest, that this property for AISIN is preferred to Pierburg.

Which water pump are more popular — AISIN or Pierburg?

In March 2026 on PartReview, water pump AISIN were overall more popular than Pierburg.

By vote balance, water pump AISIN surpassed Pierburg:

For AISIN, the ratio of positive (159) to negative (42) votes is 117 votes.
For Pierburg, the ratio of positive (73) to negative (40) votes is 33 votes.

By number of reviews, water pump AISIN surpassed Pierburg:

For water pump AISIN there are 66 reviews: 51 positive, 3 neutral, 12 negative.
For water pump Pierburg there are 35 reviews: 19 positive, 8 neutral, 8 negative.

Which water pump do car owners prefer — AISIN or Pierburg?

In March 2026, according to PartReview, water pump AISIN led more car-specific ratings than Pierburg:

AISIN are chosen by owners of cars such as: Toyota 4runner, 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.

Other comparisons of water pump

If this comparison didn’t fully answer your question, there are many others on PartReview.

For example, comparisons of water pump AISIN with: OEM Volkswagen, OEM Audi, GRAF, Gates, Hepu, OEM FORD, OEM BMW, OEM Toyota, GMB, Saleri.

Also available: comparisons of water pump Pierburg with: OEM Volkswagen, OEM Audi, GRAF, Gates, Hepu, 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.