Hi, I'm new here. Thank you very much for your assistance in advance. I have a 350z 2005. I need a little assistance with my headlights

The rubber that goes around the border of my headlights apparently have fallen off leaving a gap between the car's body and the headlights. I wanted to know if you guys can assist me in finding out the name of this rubber (if there is any specific name) or where i can buy a replacement (links appreciated)

The other thing is that my gas door is not closing permanently, it keeps opening itself over time, ive been told that the lock was broken, again i am trying to find a replacement or a way to fix this.

I was told that the piece number is: 78850CD06A

http://www.ebay.com/itm/122326950249...%3AMEBIDX%3AIT

I also found this possible replacement

 

There isn't a separate rubber trim around the headlights, so I'm not sure what you're describing. Can you post a close-up pic?