I just confirmed that the center cap from a 2003 sedan 17" 6 spoke wheel fit in a 2005 coupe 19" 10 spoke forged rays wheel

 

Thanks for confirming DVG.

I was online the other day and noticed that Japanparts.com sells the original 17" 5 spoke Sport Wheels as an aftermarket item from Rays.





It appears that the center cap says Nissan vs, the standard Infiniti logo. There is also a Rays decal that goes on the wheel. Nice look.

I also found this guy on ebay and he claims to have flat/chrome center caps specifically for the OEM sport wheels (the caps are different between the two OEM 17" wheels, 3" across for sport vs. 2 1/8" for non-sport). I will ask if he has any pictures of the caps installed on the wheel.

 

​​​​​​Can you help me with my 03 g35 Sedan? I have the 17 inch rims with the raised 3 inch center caps and one of mine just went missing when I took it too a shop and they said they are not responsible, anyway now I can't find a replacement can you help me?

 

Nissan part number 40342-AL000

Best bet will probably be ebay, there's a lot of websites that sell hubcaps though so you should do some googling.