Put a koyo rad in it and it’s been good to go.
I got a Mishimoto with zero issues and fitment was spot on
If you go aluminum Koyo is the way to go.
I went with Koyo. CARid was the best price at the time. Been 7 years and no issues.
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.
If u get a mishimoto it won't break again
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.
They're fine. They're one step above oem imo
My mishimoto radiator sprung a leak after 1.5 years in my F150. So good luck.
Get a csf or koyorad. Mishimoto isn’t that great
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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:
In March 2026 on PartReview, engine radiator Koyo were overall better than MISHIMOTO.
Engine radiator MISHIMOTO and Koyo were equally popular according to data in March 2026.
By vote balance, engine radiator Koyo surpassed MISHIMOTO:
By number of reviews, engine radiator MISHIMOTO surpassed Koyo:
In March 2026, according to PartReview, engine radiator Koyo led more car-specific ratings than MISHIMOTO:
Koyo are chosen by owners of cars such as: Honda S2000, and others.
Engine radiator 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 engine radiator MISHIMOTO with: Nissens, KOYORAD, Denso, OEM Volkswagen, OEM BMW, VALEO, OEM Toyota.
Also available: comparisons of engine radiator Koyo with: Nissens, KOYORAD, Denso, OEM Volkswagen, OEM BMW, VALEO, OEM Toyota.
You can also see who is better among other engine radiator manufacturers: MISHIMOTO or Nissens, MISHIMOTO or KOYORAD, MISHIMOTO or Denso, MISHIMOTO or OEM Volkswagen, MISHIMOTO or OEM BMW.
