I have an '01 and just ran through a ton of trouble with my O2 sensors....here is what I learned....
Bosch sensors are hit or miss....they may work, they may not
I was buying the universal plugs so I spliced the wires together
I did buy 1 plug and play and worked ok
the consensus on these boards is don't waste your money with Bosch
spend the extra $20 and get the right one from Jeep and change it once....just make sure you know the ones you need...each one has a different price at Jeep