O2 Sensor replacement on 2001 QX4...

[Jack1944]

No big deal on replacing both rears?...

Easily replaced?...

Any tricks in unscrewing, I guess...

Just plug and play?...

Replacement brands...Bosch - Walker - Thoughts on best for replacing...

Thanks......

[Transtek]

Just done this myself.First things first, buy original Nissan sensors to be on the safe side and avoid issues other forum members have had with other makes.Secondly, ask a friend to give you a hand feeding the new sensors down from above, and thirdly, I hope you have long fingers as some of the clips are a real beetch to get Out/in (getting them out just use brute force as the new sensors come with all the necessary clips).Time taken: about an hour to do both! Money saved: probably about 200 dollars compared to taking it to a dealership!