Radiator options

jsilva

jsilva

Greenie N00B Member
Greenie Member
I’m trying to find a low-cost (but not totally sucky) replacement radiator for my Speed6. I have a leak which I think is along the metal/plastic lower seam so a temporary repair is elusive for me. I had considered using K-Seal since some people claim it doesn’t gum anything up but I feel apprehensive about it.

I saw this an Amazon and they claim it fits the Speed6:

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There is also a CSF (3192) radiator on RockAuto that seems decent and is $81.

Any advice would be appreciated.
 
I would just get the rock auto one as I would have more confidence that it actually fits. I wouldn't expect a significant difference in quality from any of the stock replacement ones.

Can you just jb weld the old one from the outside?
 
Easter Bunny said:
I would just get the rock auto one as I would have more confidence that it actually fits. I wouldn't expect a significant difference in quality from any of the stock replacement ones.

Can you just jb weld the old one from the outside?
Click to expand...

Thanks!

I have never repaired a radiator so I’m not sure what the best way to do it is. I’m sort of guessing the leak source because it’s really difficult to see it (even with a pressure tester).
 
Rock auto also has koyo rads, they're a known brand. I agree with bunny I'd just go the rock auto route and call it a day. If anything broke also replay your thermostat at the same time
 
Likely you have ordered it already. My rock auto speed 6 radiator did fit as OEM. My issue was my fan shroud had different ears on bottom "slip into socket" so had to modify my shroud to fit new radiator sockets. AC condenser was fine, was just the shroud.
 
Thanks Cfoldone. I did order the CSF one and it should arrive tomorrow. My plan is to install on Thurs. Hopefully I won’t have to modify but we’ll see. Thanks for the tip.
 
I finally installed the CSF 3192 radiator. It was basically a perfect fit. No issues, and I am quite pleased to not see pools of coolant underneath the car anymore.

Performance seems very good. Though the air temperature has gotten quite a bit colder here.
 
Awafrican said:
Rock auto also has koyo rads, they're a known brand. I agree with bunny I'd just go the rock auto route and call it a day. If anything broke also replay your thermostat at the same time
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I just joined and saw this thread. I'm looking into the KOYORADS, but I can't find a part number that lines up. Any suggestions or help for this?
 
TYCO said:
I just joined and saw this thread. I'm looking into the KOYORADS, but I can't find a part number that lines up. Any suggestions or help for this?
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did you try google? because I see many results... including results on one of our form vendors webpages
https://www.google.com/search?client=firefox-b-d&q=koyorad+mazdaspeed

MS6
https://damondmotorsports.com/produ...eX9Pf8HleB08vKbY8eYQDwQPLidLwEctmISbkro06bb1M
gen1 MS3
https://damondmotorsports.com/produ...turbo-mt-radiator?_pos=2&_sid=d247e2190&_ss=r
gen2 MS3
https://damondmotorsports.com/produ...-2-5l-i4-radiator?_pos=3&_sid=d247e2190&_ss=r
even a dedicated thread with PNs listed
https://mazdaspeeds.org/index.php?threads/koyo-radiator.8654/
 
Awafrican said:
did you try google? because I see many results... including results on one of our form vendors webpages
https://www.google.com/search?client=firefox-b-d&q=koyorad+mazdaspeed

MS6
https://damondmotorsports.com/produ...eX9Pf8HleB08vKbY8eYQDwQPLidLwEctmISbkro06bb1M
gen1 MS3
https://damondmotorsports.com/produ...turbo-mt-radiator?_pos=2&_sid=d247e2190&_ss=r
gen2 MS3
https://damondmotorsports.com/produ...-2-5l-i4-radiator?_pos=3&_sid=d247e2190&_ss=r
even a dedicated thread with PNs listed
https://mazdaspeeds.org/index.php?threads/koyo-radiator.8654/
Click to expand...
I did. I found multiple websites that had KoyoRads. And several of them had matching part numbers but others had different ones. I reached out because I was working and got a call from the shop saying the previous owner "repaired" the current radiator and I was trying to find an answer on the fly. Thank you for responding with options.
 
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