Best Engine radiator for Toyota 4runner

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Rank	Manufacturers	Ratings	Avg. rating	Votes	Reviews	Positive	Neutral	Negative
1.	Denso	54%	4.5	30	11	10	1	0
2.	KOYORAD	16%	4.1	9	5	4	0	1
3.	Koyo	5%	4.5	3	1	1	0	0
4.	OEM Toyota	5%	5.0	3	1	1	0	0

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Denso › Engine radiator

Ok-Energy5358 28 Jan 2026, 20:30

Rating 5.0

Leaks:

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.

Pros: zero leaks

Vehicle: Toyota 4runner

Mileage: 65000 km

Denso › Engine radiator

kjc-01 24 Dec 2025, 20:56

Rating 5.0

This happened to my 4Runner recently. New denso radiator from Rockauto was $150.

Pros: new denso radiator

Vehicle: Toyota 4runner

Denso › Engine radiator

Jermagesty 2 Dec 2025, 21:26

Rating 5.0

Get a Denso on Rock Auto for 130 and replace it yourself. Watch a YouTube video on how to do it and save yourself a bunch of coin.

Pros: save yourself coin

Vehicle: Toyota 4runner

KOYORAD › Engine radiator

rearwindowpup 3 Oct 2025, 17:28

Rating 5.0

Overheating:

I've had a Koyorad in my 97 for 5 years now and it's been great.

Pros: great performance, 5 years durability

Vehicle: Toyota 4runner

Denso › Engine radiator

_chanimal_ 23 Aug 2025, 15:58

Rating 4.5

I swapped my original radiator at 230k with a denso replacement. Denso/oem parts have always been g2g for me.

Pros: reliable, good quality

Vehicle: Toyota 4runner

Denso › Engine radiator

Do_Worrk 19 Aug 2025, 14:15

Rating 4.0

Just swapped my OEM at 313k for a Denso, so far so good. Fit very snug, almost thought it wouldn’t fit, so that’s good for surface area at least!

Pros: good fit, good surface area

Vehicle: Toyota 4runner

Koyo › Engine radiator

1testaccount1 19 Aug 2025, 04:34

Rating 4.5

Overheating:
Leaks:

I looked at what I bought like 165k and it was KOYO Radiator A1998 for $175 and I'm like 100k miles later and it still looks good. I just wanna change it for preventative maintenance since I'm gonna have my mechanic add the external cooler

Pros: still looks good, long lasting

Vehicle: Toyota 4runner

Mileage: 160934 km

Part number: A1998

KOYORAD › Engine radiator

dlaguerta 19 Aug 2025, 03:50

Rating 4.5

Overheating:

The Koyorad full aluminum radiator is the one to have. Paired to your Hayden 698 since it doesn’t have a section to cool the trans fluid, however definitely worth it for durability as the next alternative over OEM replacement rad.

Pros: excellent durability

Cons: no integrated trans cooler

Vehicle: Toyota 4runner

Denso › Engine radiator

Waychill83 3 Dec 2025, 12:11

Rating 3.0

I just installed this Denso 7 years ago, won't pay for that again.

Vehicle: Toyota 4runner

KOYORAD › Engine radiator

AZ_BikesHikesandGuns 19 Apr 2022, 23:49

Rating 1.0

Overheating:
Leaks:

When I ordered a koyorad I didn’t get this in the box. I sent back what I got from them it was all dented and didn’t fit.

Cons: dented, didn't fit

Vehicle: Toyota 4runner

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Top manufacturers of engine radiator for Toyota 4runner

This part for Toyota 4runner is made around the world. We have reviews for engine radiator manufacturers from countries such as: Japan .

In March 2026, the ranking of engine radiator for Toyota 4runner on PartReview included 4 manufacturers. It is based on 18 reviews and 55 votes.

Which engine radiator to choose for Toyota 4runner?

Last month, PartReview users preferred Denso. 54% of positive votes went to this manufacturer.

In second place: engine radiator KOYORAD — 16%.

Third place: Koyo with 5% of the votes.

In the overall ranking of engine radiator, which aggregates opinions of owners of different car makes and models, these brands hold the following positions:

Denso ranked 4, PR Score — 82. Based on 39 reviews and 120 votes.
KOYORAD ranked 2, PR Score — 94. Based on 41 review and 125 votes.
Koyo — rank 1, PR Score — 92. Based on 57 reviews and 173 votes.

Other parts for Toyota 4runner

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