Thermostat MISHIMOTO or OEM Volkswagen

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 #1 in ranking

3.6

Cabin heat

2.6

Overheating

3.0

Slow warm-up

1.9

No data

Reviews

All

MISHIMOTO

OEM Volkswagen

OEM Volkswagen › Thermostat

TT99C5 3 Nov 2025, 22:20

Overheating:

Rating 4.0

I had a bad thermostat and it's only indication was the temp rising when going up hills under sustained load.

Pros: temp rising under load

Cons: temp rising

Vehicle: Volkswagen Passat

Mileage: 210000 km

OEM Volkswagen › Thermostat

T00m98 3 Nov 2025, 11:25

Overheating:

Rating 4.0

I had this year ago, thermostat was stuck closed, so coolant couldnt go to big circle and into cooler, it went up after 10 minutes of highway driving up to 115° (obd temps) on dash it wasnt that much

Pros: coolant couldn't go cooler

Cons: thermostat stuck closed

OEM Volkswagen › Thermostat

Weird_Elevator_3043 13 Oct 2025, 10:55

Overheating:

Rating 4.5

I used the genuine part as there is no desire to redo it again too soon.

Pros: reliable, long-lasting

Vehicle: Volkswagen Jetta

OEM Volkswagen › Thermostat

Kuriti 1 Sep 2025, 21:08

Overheating:

Rating 5.0

It has been two weeks since the repair without issues, so I am going to call this one solved. If I was paying for this out of pocket in the future, I would only replace the thermostat and not the pump as that is what was closing and causing the issue.

Pros: repair without issues

Vehicle: Volkswagen

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

OEM Volkswagen › Thermostat

Phaeton4me 23 Mar 2025, 17:52

Slow warm-up:
Overheating:

Rating 1.0

Original was stuck open, replaced with new VW which now appears to be stuck closed. ????. Fortunately I have recently acquired a new OE thermostat on clearance for jollies.

Cons: stuck open, stuck closed

Vehicle: Volkswagen Phaeton

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Which thermostat to choose — MISHIMOTO or OEM Volkswagen?

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 Volkswagen

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

Which thermostat are better — OEM Volkswagen or MISHIMOTO?

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

MISHIMOTO received a PR Score of 32 out of 100, and OEM Volkswagen scored 73 points.
MISHIMOTO ranked 14 in the overall ranking, and OEM Volkswagen ranked 1.
The average rating is higher for OEM Volkswagen (3.6) than for MISHIMOTO (2.2).
Thermostat OEM Volkswagen have better feature ratings than MISHIMOTO:
- Overheating - owners believe, that this property for OEM Volkswagen is better than MISHIMOTO.
- Slow warm-up - drivers claim, that this property for MISHIMOTO is outperforms OEM Volkswagen.
- Cabin heat - reviews suggest, that this property for OEM Volkswagen is preferred to MISHIMOTO.

Which thermostat are more popular — MISHIMOTO or OEM Volkswagen?

In March 2026 on PartReview, thermostat OEM Volkswagen were overall more popular than MISHIMOTO.

By vote balance, thermostat OEM Volkswagen surpassed MISHIMOTO:

For MISHIMOTO, the ratio of positive (16) to negative (34) votes is -18 votes.
For OEM Volkswagen, the ratio of positive (56) to negative (20) votes is 36 votes.

By number of reviews, thermostat OEM Volkswagen surpassed MISHIMOTO:

For thermostat MISHIMOTO there are 16 reviews: 4 positive, 2 neutral, 10 negative.
For thermostat OEM Volkswagen there are 24 reviews: 16 positive, 4 neutral, 4 negative.

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

In March 2026, according to PartReview, thermostat MISHIMOTO and OEM Volkswagen have not taken top places in car-specific ratings. You can help by adding your review about these manufacturers.

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, Mahle, OEM Mazda, MOPAR, Gates, OEM BMW, OEM Nissan, OEM Audi, Duralast.

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

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.