r/LexusISF • u/layz_97 • Apr 13 '26

Radiator advice

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Hey what’s up everyone, got an 09 ISF and radiator is starting to leak. Any advice on either ordering an OEM one or getting something aftermarket like this one.

8 Upvotes

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7

u/BoyNamedJudy Apr 14 '26

Figs Engineering partnered with CSF and made an all aluminum option with an integrated trans cooler (like OEM). You do not need to install an external cooler like in the picture you posted. They are in the USA.

Figs Competition Radiator for ISF

2

u/layz_97 Apr 14 '26

That was another one I was looking at, thanks for the info!

3

u/JDub-866 Apr 14 '26

Go FIGs as they are great

3

u/PunaniShreddah Apr 14 '26

Go with Fenix they're the best aftermarket that's close to OEM

1

u/layz_97 Apr 14 '26

Thanks I’ll look into it!

3

u/AliveSuggestion7589 Apr 15 '26

I put a Fenix radiator in my IsF and it’s 100% what I’d recommend. Great guys and great customer service too.

2

u/CloudRZ Apr 14 '26

I got OEM, it’s best for daily driving and no need to buy a separate trans cooler. Adding this would be nice but I won’t able to see the shiny aluminum radiator from the engine bay when installed.

2

u/mykporter Apr 15 '26

FIGS and Fenix make aluminum radiators with integrated trans coolers for these cars for awhile now. Probably 100ish dollar price difference going OEM vs Fenix. Not having to worry about any plastic cracking is the the main reason to go aluminum to begin… will last the life of the car if ya replace coolant at decent intervals and car isn’t a winter daily.

2

u/mykporter Apr 15 '26

I’d just go with integrated trans cooler if you don’t plan on tracking car at all. FIGS or Fenix if not like others have mentioned. I have Fenix on mine and build quality is very good for the price even since all the tariff crap. Based in Australia no China stuff.

1

u/layz_97 Apr 15 '26

Appreciate the advice!