I only use Gates now after some cheap ones failed but didn't leak. Gates are very good. I have not had to replace one.
It’s now got an 85°c Mishimoto thermostat. Took it out today and got it up to temp and did multiple 0-85mph pulls. The new thermostat opens at 85°C/185°F. Under load the coolant never registered above 197°F!!!!
Mishimoto has a great thermostat plus it has a lifetime warranty
I installed a Gates 33009S 195 degree after my Hughes install and haven’t had issues.
The brand new thermostat wasn’t opening all the way. One new Gates thermostat fixed the issue.
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.
I installed a Gates one a couple months back and it worked well for a little while; engine got up to operating temp fairly quickly and stayed there, but now it’s running really cold no matter how long or how hard I drive it. Think it’s stuck open.
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...
please remove the mishimoto thermostat they fail a lot, it happened to me as well.
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.
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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:
In March 2026 on PartReview, thermostat Gates were overall better than MISHIMOTO.
Thermostat Gates and MISHIMOTO were equally popular according to data in March 2026.
By vote balance, thermostat Gates surpassed MISHIMOTO:
By number of reviews, thermostat MISHIMOTO surpassed Gates:
In March 2026, according to PartReview, thermostat Gates led more car-specific ratings than MISHIMOTO:
Gates are chosen by owners of cars such as: Dodge RAM, 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.
If this comparison didn’t fully answer your question, there are many others on PartReview.
For example, comparisons of thermostat Gates with: MotoRad, Wahler, OEM Volkswagen, Mahle, OEM Mazda, MOPAR, OEM BMW, OEM Nissan, OEM Audi, Duralast.
Also available: comparisons of thermostat MISHIMOTO with: MotoRad, Wahler, OEM Volkswagen, Mahle, OEM Mazda, MOPAR, 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.
