I'm a noob here. I bought a new o2 housing. I'm about to install it but when I took my old o2 I noticed that it had some sort donut ring around the base. My new doesn't have one. My question is if it's ok to install it just like that or if I need some sort of ring around the base of the new one too. It's where the o2 and dp meet. Any help would be great. I think it's like a gasket of some sort. I'm probably wrong

 

It's actually called a donut gasket. You do need it but it should be reusable. Someone correct me if I'm wrong. Link below for image.

http://www.streettunedmotorsports.co...nut_gasket.htm

 

If you are careful not to crumble it when removing it could be reused.

 

Save yourself some aggravation. Replace it. Not an expensive part to replace..

 

I can be reused but its worth the 20 bucks from the dealer not to have it leak right after you put it together.

 

thanks you guys. Close thread