My 2003 sedan have a leak, I'm planning to purchase a replacement from Rockauto, has any members installed Denso or Spectra Premium radiator , and was it a perfect fit.. Thanks

 

Aluminum radiators are a good choice. Koyo has good quality, and I know some guys here have this radiator.

 

My radiator blew in May and I replaced it with the Denso unit from Rockauto. It was almost a perfect fit. There are 2 plastic tabs on the bottom of the radiator that hold the ac condenser in place. The Denso's tabs stuck out about 1/4" more than the OEM radiator, so I had to use a dremel to remove a little bit of the lower rad. support to make it fit. I've put about 6000 miles on it and so far so good.

 

I replaced my G35 Sedan with Spectra Premium radiator after reading from other poster negatives review about Denso unit .... the Spectra radiator from Rockauto fit perfectly with the AC condenser, I was very happy with the unit , took me 5 hrs to replaced radiator , belts and thermostat

 

If you haven't installed a new radiator yet, I'd suggest going with a Mishimoto all aluminum radiator. Worked great for me with a perfect fit when I used to have a G35.