I was going off info i'd read peviously:
http://www.thenissanpath.com/viewtopic. ... f7fe4e0897
Per smj's comments, though, nissan has never officially stated which (if any) rad PNs are fixed.
If you are concerned, you could bypass the rad. I ran my 05 for 4 years like that, now have 305k kms on it. Replaced rad 2yrs ago with a spectra premium for $200 Canadian. Not bypassed anymore.