Water pump AISIN or OEM Toyota

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 #7 in ranking

3.6

Leaks

2.2

Noise

4.0

Overheating

2.8

No data

Reviews

All

AISIN

OEM Toyota

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

OEM Toyota › Water pump

IvyLeagueImage 28 Dec 2025, 22:01

Overheating:

Rating 5.0

I wish I knew myself before my overheating probs with the failed first gen water pumps from toyota. Once the new pump was in the engine would work really well when it comes to heating and cooling.

Pros: engine would work well

Cons: overheating probs

OEM Toyota › Water pump

xxrancid13xx 17 Dec 2025, 00:42

Leaks:

Rating 5.0

My original lasted 18 years / 249k miles. The replacement one has been in place for almost 2 years / 22k miles.

Pros: long lasting, reliable

Vehicle: Toyota Prius

Mileage: 434523 km

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

OEM Toyota › Water pump

logbiter 17 Dec 2025, 12:50

Overheating:

Rating 3.0

Mine started going out at ~165k in 2023. 05 Prius. I mostly drive less 5miles at a shot, and it would toss a code if driven much more than that and it was hot

Pros: peace of mind

Cons: failure at 165k

Vehicle: Toyota Prius

Mileage: 265549 km

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 OEM Toyota?

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 OEM Toyota

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

Which water pump are better — OEM Toyota or AISIN?

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

AISIN received a PR Score of 79 out of 100, and OEM Toyota scored 70 points.
AISIN ranked 1 in the overall ranking, and OEM Toyota ranked 7.
The average rating is higher for AISIN (4) than for OEM Toyota (3.6).
Water pump AISIN have better feature ratings than OEM Toyota:
- Noise - owners believe, that this property for OEM Toyota is better than AISIN.
- Leaks - drivers claim, that this property for AISIN is outperforms OEM Toyota.
- Overheating - reviews suggest, that this property for AISIN is preferred to OEM Toyota.

Which water pump are more popular — AISIN or OEM Toyota?

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

By vote balance, water pump AISIN surpassed OEM Toyota:

For AISIN, the ratio of positive (159) to negative (42) votes is 117 votes.
For OEM Toyota, the ratio of positive (36) to negative (15) votes is 21 vote.

By number of reviews, water pump AISIN surpassed OEM Toyota:

For water pump AISIN there are 66 reviews: 51 positive, 3 neutral, 12 negative.
For water pump OEM Toyota there are 16 reviews: 10 positive, 3 neutral, 3 negative.

Which water pump do car owners prefer — AISIN or OEM Toyota?

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

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

Water pump OEM Toyota 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, Pierburg, OEM FORD, OEM BMW, GMB, Saleri.

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