rick77

Should the cat assembly have 1 or 2 cats on either side for a 2010 jku rubicon. One dealer said mine is the wrong one because I have only 1 on either side.

So I'm tired of getting the run around from the dealers. I've been having rotating o2 codes. By that I mean one o2 will code then reset and a different one next and so one. Never the same one. Egg smell sometimes as well as the dam p0300 code. I figured ok I'll just replace all 4 o2 and the cat myself and be done with it. Ordered parts and bam same cat i got on now shows up. Part# 68040901ab

Also is there a gasket between the manifold and the cat assembly. I can't find one anywhere so I'm assuming no. Haven't asked the stealership yet though.

karls10jk

There is only 1 cat per side, just verified on my 2010, original owner.

I've not had my manifolds off to say if there is a gasket between the manifolds and downpipe for the cat, but I wouldn't think so.

For the jeep, I'd make sure I only use OEM Mopar o2 sensors, it doesn't like Bosch.

rick77

Sweet. Thanks Karl. I thought it was wrong. I guess I won't be going back to that dealer. I got all mopar stuff. I've read of people having problems with others.