Yea I got it on amazon. Yeah I didn't get that Koyo/TYC stickers/box maybe that's why. I tried to contact the seller, but by that time I said screw it, let's make it fit.
Radiators - Koyo vs The REST
- Thread starter shadow247
- Start date
Yea I got it on amazon. Yeah I didn't get that Koyo/TYC stickers/box maybe that's why. I tried to contact the seller, but by that time I said screw it, let's make it fit.
Jowenbrown
New member
Full Disclosure - I used to work here:
Call 1-800-Radiator. They'll have Denso and Koyo in stock and depending on where you live, they'll even deliver. Price-wise they can usually beat internet prices. You can also get it same day and if you have problems, they'll swap it out instead of having you ship it back.
Call 1-800-Radiator. They'll have Denso and Koyo in stock and depending on where you live, they'll even deliver. Price-wise they can usually beat internet prices. You can also get it same day and if you have problems, they'll swap it out instead of having you ship it back.
flyinbrick
New member
Another data point here for the Denso. I was looking for Koyo several months ago, but the Denso was $105 at JC Whitney and the cheapest Koyo was $150 at FRSport so I went with the Denso. Like Badattitude, my first radiator had a broken overflow nipple which I attribute to bad packaging. After jumping through some hoops with JC Whitney, a second one arrived which I installed with no problems. The quality seems comparable with OEM. The only difference I saw was that the OEM unit had weld nuts while the Denso had nutserts - but still worked. The drain is also a simpler design and not compatible.
Note: when replacing the radiator, get some extra grille clips or use zip ties in place of broken ones. They get brittle and crack with age.
Note: when replacing the radiator, get some extra grille clips or use zip ties in place of broken ones. They get brittle and crack with age.
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Ugghhh, cannot decide! TYC, Koyo, Denso, or OEM Denso!??
TYC: http://www.amazon.com/TYC-1998-Alum...DNU4S43&colid=3Q160AN2IC321&tag=vglnk-c565-20
Koyo: Koyorad OEM Replacement Radiator Toyota 4Runner 3.4L V6 AT 96-02
Denso: http://www.amazon.com/Denso-221-0508-Radiator/dp/B0096B9PC8/ref=cm_cr_pr_product_top?ie=UTF8
OEM Denso: Amazon.com: Genuine Toyota Parts 16410-YZZAJ Radiator for Toyota 4Runner: Automotive
TYC: http://www.amazon.com/TYC-1998-Alum...DNU4S43&colid=3Q160AN2IC321&tag=vglnk-c565-20
Koyo: Koyorad OEM Replacement Radiator Toyota 4Runner 3.4L V6 AT 96-02
Denso: http://www.amazon.com/Denso-221-0508-Radiator/dp/B0096B9PC8/ref=cm_cr_pr_product_top?ie=UTF8
OEM Denso: Amazon.com: Genuine Toyota Parts 16410-YZZAJ Radiator for Toyota 4Runner: Automotive
DustinJoints
New member
Which one did you get ?
I am really glad I found this 4runner forum. Will be buying Denso radiator as preventative maintenance.
Interesting thing though, I recently replaced radiator in Camry. It was a stock Denso and had a hairline crack across top. Looked online and found this was acommon problem with this radiator. Would be nice if they would stop using plastic when designing these. Is the KOYO all aluminum or like the Denso part plastic?
Interesting thing though, I recently replaced radiator in Camry. It was a stock Denso and had a hairline crack across top. Looked online and found this was acommon problem with this radiator. Would be nice if they would stop using plastic when designing these. Is the KOYO all aluminum or like the Denso part plastic?
Disregard question on whether KOYO uses plastic. Just looked at from link. Another question though. Denso transmission lines look to be aluminium while KOYO looks to be brass or steel. Wouldnt this be better and does anyone know if same material passing through radiator or just connection at opening. Was thinking if not aluminum, might last longer.
hungwin jza80
New member
Has anyone investigated the difference between the radiators offered by Toyota? Is the YZZAJ Made in Taiwan/Thailand and the other Made in Japan?
Manufacturer: Toyota
Part Number: 16410-YZZAJ
Part: RADIATOR ASSY
Replaces: 16400-75160, 16400-75180
Part Notes: 3.4 LITER, SERVICE, AUTO TRANS
PARTS: Warranty and Service radiators are included in a special Toyota program.
$199.63 ($289.32 List)
Manufacturer: Toyota
Part Number: 16400-75181
Part: RADIATOR ASSY
Part Notes: 3.4 LITER, WARRANTY, AUTO TRANS
PARTS: Warranty and Service radiators are included in a special Toyota program.
$278.31 ($402.55 List)
Manufacturer: Toyota
Part Number: 16410-YZZAJ
Part: RADIATOR ASSY
Replaces: 16400-75160, 16400-75180
Part Notes: 3.4 LITER, SERVICE, AUTO TRANS
PARTS: Warranty and Service radiators are included in a special Toyota program.
$199.63 ($289.32 List)
Manufacturer: Toyota
Part Number: 16400-75181
Part: RADIATOR ASSY
Part Notes: 3.4 LITER, WARRANTY, AUTO TRANS
PARTS: Warranty and Service radiators are included in a special Toyota program.
$278.31 ($402.55 List)
wrw4runner
New member
Aftermarket radiator
Can anyone give me a long term report on how their koya or denso aftermarket radiators have held up? Are they as good as the factory radiator?
Can anyone give me a long term report on how their koya or denso aftermarket radiators have held up? Are they as good as the factory radiator?
just installed a Denso, as well as thermostat and hoses.
fit is simple and exact and yes the drain is not as good as original, but works
but packaging sucks, I ordered a week in advance of doing the work as I had read so many times about broken units on arrival
well I lucked out, even though the radiator was rattling around in the box it had no damage, well a few bent fins
so I would advise people , order will in advance so you can get it , inspect it and get a replacement if needed
fit is simple and exact and yes the drain is not as good as original, but works
but packaging sucks, I ordered a week in advance of doing the work as I had read so many times about broken units on arrival
well I lucked out, even though the radiator was rattling around in the box it had no damage, well a few bent fins
so I would advise people , order will in advance so you can get it , inspect it and get a replacement if needed
Sean K.
New member
Long story....
I am converting my '99 to solid axle so I wanted a radiator mounted flush with the bottom of the frame rail. My truck came with the largest radiator. I was told erroneously that the middle sized radiator for these trucks would fit and you could raise it about 1.5" to get it flush. I bought the Denso. It appears to be well made, but as others noted, it uses nutzerts, not welded nuts like the factory radiator did. Not a big deal at all....but you'd need longer bolts to run it.
Since the mid-sized Denso didn't fit flush and you couldn't raise it more than 1/4" without the cap hitting the bottom side of the hood, I started searching for the smallest radiator for these trucks....
I did a lot more research and found a company on Rock Auto called OSC. The interesting thing about OSC is that they use larger cores than factory and are reasonably priced (and they used welded nuts). So, IIRC....the smallest radiator uses a 16mm thick core. The one from OSC I got was 22mm.
I wouldn't hesitate to buy another OSC radiator over a factory OEM supplier. Just based on the size and quality specs they go over in their videos....I'd say it's better than the Denso.
I am converting my '99 to solid axle so I wanted a radiator mounted flush with the bottom of the frame rail. My truck came with the largest radiator. I was told erroneously that the middle sized radiator for these trucks would fit and you could raise it about 1.5" to get it flush. I bought the Denso. It appears to be well made, but as others noted, it uses nutzerts, not welded nuts like the factory radiator did. Not a big deal at all....but you'd need longer bolts to run it.
Since the mid-sized Denso didn't fit flush and you couldn't raise it more than 1/4" without the cap hitting the bottom side of the hood, I started searching for the smallest radiator for these trucks....
I did a lot more research and found a company on Rock Auto called OSC. The interesting thing about OSC is that they use larger cores than factory and are reasonably priced (and they used welded nuts). So, IIRC....the smallest radiator uses a 16mm thick core. The one from OSC I got was 22mm.
I wouldn't hesitate to buy another OSC radiator over a factory OEM supplier. Just based on the size and quality specs they go over in their videos....I'd say it's better than the Denso.
Long term report
I bought this radiator 4 years / 60,000 miles ago https://www.amazon.com/TYC-1998-Aluminum-Replacement-Radiator/dp/B000IYSH9O/ref=pd_sbs_263_3?_encoding=UTF8&pd_rd_i=B000IYSH9O&pd_rd_r=W34CVV05V6QWXDYBVQRS&pd_rd_w=1DGF2&pd_rd_wg=t8BsJ&psc=1&refRID=W34CVV05V6QWXDYBVQRS
Its the TYC 1998, now the top of the radiator where the plastic black top cap meets the metal is leaking all around the top, there is pink dried up coolant almost all the way around it. I have washed it and it comes back in 4-5 days, not much is leaking but i am going to be replacing it soon as i have a big road trip coming up.
I bought this radiator 4 years / 60,000 miles ago https://www.amazon.com/TYC-1998-Aluminum-Replacement-Radiator/dp/B000IYSH9O/ref=pd_sbs_263_3?_encoding=UTF8&pd_rd_i=B000IYSH9O&pd_rd_r=W34CVV05V6QWXDYBVQRS&pd_rd_w=1DGF2&pd_rd_wg=t8BsJ&psc=1&refRID=W34CVV05V6QWXDYBVQRS
Its the TYC 1998, now the top of the radiator where the plastic black top cap meets the metal is leaking all around the top, there is pink dried up coolant almost all the way around it. I have washed it and it comes back in 4-5 days, not much is leaking but i am going to be replacing it soon as i have a big road trip coming up.
SURF RUNNER
Senior Member
I didn't read the entire post (and many of you already know this), but Champion makes an all aluminum direct fit factory replacement radiator. Other than the higher price, I don't know why this wouldn't be the #1 choice for a factory replacement. No plastic parts to break plus the cool factor of an all aluminum radiator should be something to seriously consider.
I thought about this, but cant find any definitive advantage over the OEM Denso plastic. I know aluminum will handle the wear and tear more, but with proper maintenance the plastic ones can go well over 150k. So why drop the extra 150 bucks? I still haven't purchased yet so I could flip flop.
I just looked at mine and the letters are worn off, but there's a faint "Toyota" and some part numbers on the top. Seems to be OEM or at least replaced with OEM. It's a 2002 so if it is OEM it's doing great! no cracks or signs of plastic wear. Hoses are nice and supple too. They've had to be replaced.
I just looked at mine and the letters are worn off, but there's a faint "Toyota" and some part numbers on the top. Seems to be OEM or at least replaced with OEM. It's a 2002 so if it is OEM it's doing great! no cracks or signs of plastic wear. Hoses are nice and supple too. They've had to be replaced.
Beaumont67
New member
My brother had 2 Champion aluminum rads, in his 2000 Jeep Wrangler / never off roaded >> their rads were garbage.
- first one replaced (leaking) on exchange / after 2nd one leaked, he got a full refund...all in 14 months time.
While I didn't find a rad for our gen3, in the Koyo alum tank brand / only gen2.
Gen2 T4R
KOYO ALUMINUM RADIATOR TOYOTA PICKUP 84-95 22R 22RE 4RUNNER 84-88 HH012827 Brand New $295.00
https://www.ebay.com/itm/KOYO-ALUMI...ash=item259ca202ad:g:68sAAOSw6aVUo07R&vxp=mtr
- Koyo HH Series Radiators are built to fit like OEM. They provide improved cooling with OEM size and thickness. The radiator is fully polished to a mirror finish and has a 48mm core. All Koyo aluminum radiators are made from aircraft quality aluminum with heli-arc welded cores that are NOCOLOK-brazed. They are built to handles high revving, high performance motors, and is perfect for turbocharged, supercharged, and nitrous oxide equipped engines
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audiness
Senior Member
I just got the denso from Amazon , Took me two tries to get one that wasn't damaged upon arrival . Packaging is a joke and the over flow nipple was broken off Second one that arrived was slightly damaged on the side but I was able to make it work . Hope this thing holds up .
