my 2005 4Runner Limited 4WD V8 that I bought one year ago with only 55k miles on it (well maintained time capsule), was just fine. Zero leaks from the radiator or anything. At 65k miles I went ahead and replaced the radiator with a Denso unit.
I figured going from a life in SoCal to southeast Texas summers would tax the radiator. Plus, 55k miles in 20 years, and now I’ll put about 20k miles a year on it, would likely make the original radiator go pop at the most inconvenient time, surely.
I got a Koyorad and 0 issues with overheating with hard driving! Coolant stays at operating temp no matter what.
koyorad on my 400hp Focus and never had over heating issues.
I replaced my 2010 factory Calsonic with a Kyorad 2807, there were lots of favorable comments on thenewx forum. 18 months later, still going.
I had read about people having good luck with the Kyorad brand so that's what I bought.
I just got a new Denso radiator off of rock auto for a Tacoma. It didn't look much better than this. Had a hole in the box from shipping. Installed. Hasn't leaked at all.
On my Miata with the factory flawed OEM coolant routing, I run a Koyorad 36mm aluminum radiator with OEM fans and it keeps temps a bit cooler than stock.
I changed out the intake (noise maker but I love it) then everything that connects so the turbo inlet and bpv, charge pipe and a bigger tmic. A engine that can breath will be healthy.
I ended up replacing the radiator *and the hose*s myself with a denso radiator.
Get the Denso radiator from rockauto. I tried eBay crap once and it barely lasted a year
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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 KOYORAD were overall better than Denso.
In March 2026 on PartReview, engine radiator KOYORAD were overall more popular than Denso.
By vote balance, engine radiator KOYORAD surpassed Denso:
By number of reviews, engine radiator KOYORAD surpassed Denso:
In March 2026, according to PartReview, engine radiator Denso led more car-specific ratings than KOYORAD:
Denso are chosen by owners of cars such as: Toyota 4runner, Toyota Land Cruiser, and others.
Engine radiator KOYORAD 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 Denso with: MISHIMOTO, Koyo, Nissens, OEM Volkswagen, OEM BMW, VALEO, OEM Toyota.
Also available: comparisons of engine radiator KOYORAD with: MISHIMOTO, Koyo, Nissens, 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 KOYORAD, MISHIMOTO or Denso, MISHIMOTO or OEM Volkswagen.
