New Off the Shelf Aluminum Radiator - Koyo N-Flo

JONBOY345

New member
Just wanted to share/link a new product for our trucks that looks like a promising upgrade over OEM:
Koyo Radiator 4Runner GX470

Note that this requires an external transmission cooler as they've removed the transmission cooling portion of the radiator entirely.
 
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I would be interested if I lived in a predominately warm climate but I don't so I like the trans cooler in rad, it helps warm the trans in winter. Go this way and need to be ready to do an external cooler at same time, as you pointed out.
 
I mean, I'm not sure I 100% get the point. I live in a warmer climate, and the stock cooling system is more than sufficient. It was keeping it cool even when the coolant level was low do to a blown radiator cap off road.
 
I mean, I'm not sure I 100% get the point. I live in a warmer climate, and the stock cooling system is more than sufficient. It was keeping it cool even when the coolant level was low do to a blown radiator cap off road.

It's not top of the list of me, but if I ever need to replace my radiator, I'll go this route vs OEM. Buy once, cry once. I just wanted to post it here for awareness of the community.

Aluminum would be more robust, and the triple-pass would mean better cooling thus may make a dual eFan conversion possible.

A user here swears it's not possible to convert to an eFan with the OEM radiator, while there's another that is using a Mercedes eFan with his OEM radiator.
 
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It's not top of the list of me, but if I ever need to replace my radiator, I'll go this route vs OEM. Buy once, cry once. I jut wanted to post it here for awareness of the community.

Aluminum would be more robust, and the triple-pass would mean better cooling thus may make a dual eFan conversion possible.

A user here swears it's not possible to convert to an eFan with the OEM radiator, while there's another that is using a Mercedes eFan with his OEM radiator.

That's fair. I'm with you on the buy once cry once, I just tend to prefer to keep things close to OEM where it works well. I had the stock radiator work when it was down 3 qts of coolant in the back country due to a failed radiator cap so it has earned my respect, rightfully or not xD
 
I live in a cooler climate in the Rocky Mountains of Colorado and considering this. My trans temp going over mountain passes this past summer, I was just over 230 degrees and normally stabilizes around 195-200. Cooler climate or not, this sounds like a better option than OEM.

I mean, I'm not sure I 100% get the point. I live in a warmer climate, and the stock cooling system is more than sufficient. It was keeping it cool even when the coolant level was low do to a blown radiator cap off road.
 

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