Thermostat MISHIMOTO or OEM Honda

PartReview Score

Rank #14 in ranking

-18

2.2

Overheating

2.7

Slow warm-up

2.8

No data

PR Score

Ranking

Votes

Reviews

Average rating

Properties

Car

PartReview Score

Rank #6 in ranking

4.4

Overheating

4.3

Slow warm-up

3.6

Owners' choice:

Honda Civic

Reviews

All

MISHIMOTO

OEM Honda

OEM Honda › Thermostat

mayttr 15 Dec 2025, 18:59

Overheating:

Rating 4.0

I had the same exact car with same exact problem. I changed the thermostat once and it fixed it for about a year. The issue came back and I changed again and it fixed it again... So I'd say get an OEM one if you can.

Pros: fixed it for a year

Cons: issue came back

Vehicle: Honda Civic

OEM Honda › Thermostat

Limoundo 15 Dec 2025, 15:18

Slow warm-up:
Overheating:

Rating 5.0

our 2009 CRV was taking a long time to get to operating temperature and then fluctuating a lot while driving. a new thermostat fixed it.

Pros: thermostat fixed it

Cons: fluctuating a lot

Vehicle: Honda

OEM Honda › Thermostat

Abject_Attitude8413 15 Dec 2025, 14:29

Overheating:

Rating 5.0

Don\u2019t listen to these people I have an 08 ex Sam problem replaced thermostat 2 weeks ago in 15 minutes problem is gone

Pros: problem is gone

Vehicle: Honda Civic

MISHIMOTO › Thermostat

Ben_805 16 Dec 2025, 23:22

Overheating:

Rating 3.0

I spent a good chunk of change on the Mishimoto thermostat and it got stuck closed within a couple months. Needed the car back right away and all I could get was a dirt cheap MotorRad one. Darn thing has been it in now without issue for a good long while now.

Pros: working without issue

Cons: stuck closed quickly

MISHIMOTO › Thermostat

EnKryptedToast1 30 Oct 2025, 22:27

Overheating:

Rating 3.0

I wanted to upgrade from plastic and got an aluminum Mishimoto thermostat, but i didn’t notice that it opens at 180°. Can i get away with the 180° thermostat, or should i ship it back and re-order a different, higher rated thermostat?

Pros: aluminum, upgrade from plastic

Cons: wrong opening temperature

Vehicle: Jeep Wrangler

MISHIMOTO › Thermostat

king1fluffy 24 May 2025, 20:21

Overheating:

Rating 0.5

Get that mishimoto garbage out of there and put a new oem thermostat in there. Unless you really lile pulling the engine out, to replace coolant seals and rusted rotors...

Cons: poor quality, causes damage

MISHIMOTO › Thermostat

RyanGout 24 May 2025, 16:44

Overheating:

Rating 1.0

please remove the mishimoto thermostat they fail a lot, it happened to me as well.

Cons: frequent failures

MISHIMOTO › Thermostat

Winter_Property4986 31 Mar 2025, 07:28

Overheating:

Rating 1.0

Même souci sur 350Z

Le thermostat Mishimoto s'ouvre à 82° au lieu de 68°/ la réponse du constructeur → du moment ou la température reste stable !!!!!!!!!

Je suis énormément déçu de cette réponse surtout au prix et frais de douanes que cela comporte.

Cons: s'ouvre à mauvaise température, déçu de la réponse, frais de douanes

Vehicle: Nissan

MISHIMOTO › Thermostat

Defensionem 14 Nov 2024, 09:44

Overheating:

Rating 1.0

Forget about the Mishimoto thermostat. The OEM thermostat is way more reliable and does the job.

Cons: less reliable than OEM

Vehicle: Mazda

MISHIMOTO › Thermostat

MainRotorGearbox 14 Sep 2024, 03:38

Overheating:

Rating 0.5

I put the mishimoto 160* in hot water to test it out. Lo and behold, wax started seeping out.

Cons: wax seeping out, failed test

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Which thermostat to choose — MISHIMOTO or OEM Honda?

If choosing thermostat across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.

We compare thermostat across these categories:

Comparison of thermostat MISHIMOTO and OEM Honda

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

Which thermostat are better — OEM Honda or MISHIMOTO?

In March 2026 on PartReview, thermostat OEM Honda were overall better than MISHIMOTO.

MISHIMOTO received a PR Score of 32 out of 100, and OEM Honda scored 83 points.
MISHIMOTO ranked 14 in the overall ranking, and OEM Honda ranked 6.
The average rating is higher for OEM Honda (4.4) than for MISHIMOTO (2.2).
Thermostat OEM Honda have better feature ratings than MISHIMOTO:
- Overheating - owners believe, that this property for OEM Honda is better than MISHIMOTO.
- Slow warm-up - drivers claim, that this property for OEM Honda is outperforms MISHIMOTO.

Which thermostat are more popular — MISHIMOTO or OEM Honda?

Thermostat MISHIMOTO and OEM Honda were equally popular according to data in March 2026.

By vote balance, thermostat OEM Honda surpassed MISHIMOTO:

For MISHIMOTO, the ratio of positive (16) to negative (34) votes is -18 votes.
For OEM Honda, the ratio of positive (26) to negative (5) votes is 21 vote.

By number of reviews, thermostat MISHIMOTO surpassed OEM Honda:

For thermostat MISHIMOTO there are 16 reviews: 4 positive, 2 neutral, 10 negative.
For thermostat OEM Honda there are 10 reviews: 8 positive, 1 neutral, 1 negative.

Which thermostat do car owners prefer — MISHIMOTO or OEM Honda?

In March 2026, according to PartReview, thermostat OEM Honda led more car-specific ratings than MISHIMOTO:

OEM Honda are chosen by owners of cars such as: Honda Civic, and others.

Thermostat MISHIMOTO have not yet taken leading positions in car-specific ratings. You can help by adding a review and specifying your car.

Other comparisons of thermostat

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

For example, comparisons of thermostat MISHIMOTO with: MotoRad, Wahler, OEM Volkswagen, Mahle, OEM Mazda, MOPAR, Gates, OEM BMW, OEM Nissan, OEM Audi.

Also available: comparisons of thermostat OEM Honda with: MotoRad, Wahler, OEM Volkswagen, Mahle, OEM Mazda, MOPAR, Gates, OEM BMW, OEM Nissan, OEM Audi.

You can also see who is better among other thermostat manufacturers: Wahler or MotoRad, OEM Volkswagen or MotoRad, Mahle or MotoRad, OEM Mazda or MotoRad, MOPAR or MotoRad.