My old 2003 Outlander CHECK Engine light is on, dealer said the "Primary" and "Secondary" O2 sensors are both dead.

Are these sensors same? Does anybody know the PN for the sensors?

Thanks.

 

If you have a 2.4L, here are the listings for oxygen sensors at RockAuto.com

http://www.rockauto.com/catalog/rafr...&parttype=5132

 

I would purchase the sensors directly from a retailer such as pepboys or kragen--I've had friends install aftermarket sensors and it did not work well with their cars. At least if you bought them directly from the store, the return would be much easier. Good luck.