Engine radiator Koyo or Denso

I run a Koyo 37mm radiator... and I will hit 200+F under hard driving. Under normal driving, my coolant temps are in between 178-185F.

Koyo N flow. Only rad you’ll ever need. Even though you want to keep it “stock” the OEM style plastic crimped end tank design is a time bomb and should be avoided.

Koyo is definitely one of the best available as a stock replacement. They make 2. The n flow is a little harder to fit but is “better”.

Koyo rad is top tier, as I’ve used them on all my drift builds.

I got a Denso for my 2002 Jeep Grand Cherokee Laredo 4.7L V8 and it has been fantastic, great quality and in good shape upon delivery. Vehicle ran 5-7°F cooler than before the radiator leak that initiated the replacement

I recently replaced the radiator on my 2002 Toyota 4Runner and used a Denso replacement part. It looks identical to the original.

I'd stick with a new Denso if you want to replace yours.

Held out for the koyorad and it's the same size as stock and went in with no troubles.

I just bought a koyo and it's a bit of a learning curve installing it. It took a few hours to burp the system of air but now I'm chasing small leaks. The OEM cap doesn't fit the radiator

I did replace one with oem and fail in less than a month denso brand