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Engine radiator MISHIMOTO or KOYORAD
I got a Koyorad and 0 issues with overheating with hard driving! Coolant stays at operating temp no matter what.
Pros: no issues with overheating
I got a Mishimoto with zero issues and fitment was spot on
Pros: zero issues, spot on
koyorad on my 400hp Focus and never had over heating issues.
Pros: no over heating issues
Vehicle:
Ford Focus
I replaced my 2010 factory Calsonic with a Kyorad 2807, there were lots of favorable comments on thenewx forum. 18 months later, still going.
Pros: still going after months
Vehicle:
Nissan
Part number: 2807
And don't put the oem radiator in (it sucks). A mishimoto is 2/3 the price, will last longer (it's not made of plastic at the top -- that's why the oem ones fail) and it will actually keep your engine a little cooler.
Pros: lasts longer, keeps cooler
Cons: oem ones fail
Vehicle:
Subaru Impreza
I had read about people having good luck with the Kyorad brand so that's what I bought.
Pros: good luck with brand
The crap-tastic mishimoto MMRAD-E36-92 that I use these days do come with a lifetime warranty and I send them photos of the leak and they just send me a replacement in a week or so. I have purchased 6 of them and replaced 2 under warranty. The "Z3" raditator won't fit as its too thick, but the Z3 IS and e36 so its confusing.
Pros: lifetime warranty, easy replacement
Cons: crap-tastic, pinhole leaks, poor welds, Z3 fitment issues
Vehicle:
BMW
Part number: MMRAD-E36-92
They're fine. They're one step above oem imo
Pros: one step above OEM
Vehicle:
Mazda
My mishimoto radiator sprung a leak after 1.5 years in my F150. So good luck.
Cons: sprung a leak
Vehicle:
Ford
Get a csf or koyorad. Mishimoto isn’t that great
Cons: not that great
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Which engine radiator to choose — MISHIMOTO or KOYORAD?
If choosing engine radiator across many manufacturers, check the part ranking. If your choice is down to two brands, the PartReview part comparisons help.
We compare engine radiator across these categories:
- PR Score.
- Overall ranking.
- Vote balance.
- Average rating.
- Number of reviews.
- Feature ratings.
- Car owners’ choice.
Which engine radiator are better — KOYORAD or MISHIMOTO?
In March 2026 on PartReview, engine radiator KOYORAD were overall better than MISHIMOTO.
- MISHIMOTO received a PR Score of 65 out of 100, and KOYORAD scored 94 points.
- MISHIMOTO ranked 5 in the overall ranking, and KOYORAD ranked 2.
- The average rating is higher for KOYORAD (4.5) than for MISHIMOTO (3.5).
-
Engine radiator KOYORAD have better feature ratings than MISHIMOTO:
- Leaks - owners believe, that this property for MISHIMOTO is better than KOYORAD.
- Overheating - drivers claim, that this property for KOYORAD is outperforms MISHIMOTO.
- Sweet smell - reviews suggest, that this property for MISHIMOTO is preferred to KOYORAD.
Which engine radiator are more popular — MISHIMOTO or KOYORAD?
Engine radiator MISHIMOTO and KOYORAD were equally popular according to data in March 2026.
By vote balance, engine radiator KOYORAD surpassed MISHIMOTO:
- For MISHIMOTO, the ratio of positive (195) to negative (105) votes is 90 votes.
- For KOYORAD, the ratio of positive (118) to negative (7) votes is 111 votes.
By number of reviews, engine radiator MISHIMOTO surpassed KOYORAD:
- For engine radiator MISHIMOTO there are 95 reviews: 55 positive, 15 neutral, 25 negative.
- For engine radiator KOYORAD there are 41 review: 38 positive, 2 neutral, 1 negative.
Which engine radiator do car owners prefer — MISHIMOTO or KOYORAD?
In March 2026, according to PartReview, engine radiator MISHIMOTO and KOYORAD have not taken top places in car-specific ratings. You can help by adding your review about these manufacturers.
Other comparisons of engine radiator
If this comparison didn’t fully answer your question, there are many others on PartReview.
For example, comparisons of engine radiator MISHIMOTO with: Koyo, Nissens, Denso, OEM Volkswagen, OEM BMW, VALEO, OEM Toyota.
Also available: comparisons of engine radiator KOYORAD with: Koyo, Nissens, Denso, OEM Volkswagen, OEM BMW, VALEO, OEM Toyota.
You can also see who is better among other engine radiator manufacturers: MISHIMOTO or Koyo, MISHIMOTO or Nissens, MISHIMOTO or Denso, MISHIMOTO or OEM Volkswagen, MISHIMOTO or OEM BMW.