I have two new o2 sensors that I was planning on changing this weekend but I just realized that I do not know which is the front and which is the rear. Anyone know the part numbers from the front and rear?
Thanks.
Thanks.
o2 sensor part numbers, which is front and back?
the_Scholar
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I have two new o2 sensors that I was planning on changing this weekend but I just realized that I do not know which is the front and which is the rear. Anyone know the part numbers from the front and rear?
Thanks.
Thanks.
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432 Posts
Front - 5C5Z-9F472-BA
Rear - 5W6Z-9G444-BA
Rear - 5W6Z-9G444-BA
there are two identical o2 sensors for the front, only difference between them is the length of the wiring. That is in fact... true.
Now... don't go and buy the AutoZone o2 sensors, buy the Ford parts, otherwise it'll void your emissions warranty. I found that out the hard way, and had to spend $800 on a new PCM that otherwise would have been covered.
For those that don't know, the emissions warranty is good for 8 years on certain parts... just because your bumper to bumper or extended warranty is expired doesn't mean you should just skimp out on parts. I ****ed up, and I am just trying to save some other poor sap from making the same mistake I did.
Now... don't go and buy the AutoZone o2 sensors, buy the Ford parts, otherwise it'll void your emissions warranty. I found that out the hard way, and had to spend $800 on a new PCM that otherwise would have been covered.
For those that don't know, the emissions warranty is good for 8 years on certain parts... just because your bumper to bumper or extended warranty is expired doesn't mean you should just skimp out on parts. I ****ed up, and I am just trying to save some other poor sap from making the same mistake I did.
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These are Ford parts but the rear o2 sensor has a different part number than what was posted. It is YS4Z-9G444-AA
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The part numbers I posted earlier were taken from an earlier thread on the subject from Steve at FORDSVTPARTS. I hope that he wasn't wrong.
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Thats a standard Zetec downstream 02 sensor, you need the 5W6Z number.the_Scholar said:
I stock them. Call me during the day and we'll hook you up.
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Thanks for posting and setting us straight, Steve.
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