I changed the radiator on my 2014 Infiniti qx50 with an Ultra spectre premium radiator from rock auto and it was defective; it was leaking from the threads on the outlet leading to the transmission cooler line. Would anyone recommend any other brands from rockauto or any other radiators? I am looking for one with oem fitment; Does anyone know if radiators for G37s have the same fitment as my 2014 qx50 3.7L??

 

CSF and Mishimoto make aftermarket performance radiators, but I'm not sure I'd leverage one of them as I've seen a few folks with issues.

The cost is about the same as a new OEM one from Z1: https://www.z1motorsports.com/radiat...c-p-10176.html

I'd call Z1 and see what they recommend.