PaulB said:
Since this is a Durango, Jerome may be right (although that would be a 1st) and Jegs or Summit may heve them.
Hey now! /images/graemlins/laughing.gif
Think about all it does. It just feeds a signal back saying all is ok downstream of the cat. If you get the correct one, proper number of wires and in the correct order it will just feed back what is should read with a properly functioning cat.
Just call up or e-mail the companies who make them and ask which one you need. Or call up Jegs or Summit.I have done it before for other cars.
The Durango is OBD2 and should have downstream O2's and will need sims. No biggie.