Need part number for upstream 02 socket!!!
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Junior Member

Joined: May 2014
Posts: 48
Likes: 1
From: Gilbert,AZ
Year: 1997
Model: Cherokee
Engine: 4.0
I have a 1997 jeep cherokee 4.0 and I need a upstream 02 sensor socket. Where can I find one. Thanks
CF Veteran




Joined: Jun 2009
Posts: 2,607
Likes: 446
From: Michigan
Year: 1987 MJ, 1973 J2000, 1986 XJ, 08 JK
Model: Comanche (MJ)
Engine: 4.0L H.O
I haven't had the greatest luck with multiple O2 sensor sockets soo i won't recommend any of the ones I've come across but what i would advise on is the removal.
Cut the wires off the old/stock sensor, grab the appropriately sized combo wrench (7/8" iirc) using the closed end or a deep well 6pt socket and some pre heat to the threaded bung and not the sensor - give it some removal pressure.
Cut the wires off the old/stock sensor, grab the appropriately sized combo wrench (7/8" iirc) using the closed end or a deep well 6pt socket and some pre heat to the threaded bung and not the sensor - give it some removal pressure.
Senior Member




Joined: Dec 2018
Posts: 835
Likes: 433
From: Harrisburg,Pa.
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0L
I haven't had the greatest luck with multiple O2 sensor sockets soo i won't recommend any of the ones I've come across but what i would advise on is the removal.
Cut the wires off the old/stock sensor, grab the appropriately sized combo wrench (7/8" iirc) using the closed end or a deep well 6pt socket and some pre heat to the threaded bung and not the sensor - give it some removal pressure.
Cut the wires off the old/stock sensor, grab the appropriately sized combo wrench (7/8" iirc) using the closed end or a deep well 6pt socket and some pre heat to the threaded bung and not the sensor - give it some removal pressure.
Senior Member

Joined: Jul 2012
Posts: 793
Likes: 104
From: Aldie, VA
Year: 1999
Model: Cherokee
Engine: 4.0
If a wrench fails, typically get the rental set from my local auto store. Those typically come with a a couple fo different sockets. The cheaper ones will typically spin off.
Senior Member




Joined: Sep 2016
Posts: 970
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From: North East USA
Year: 2000
Model: Cherokee (XJ)
Engine: 4.0
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Senior Member




Joined: Dec 2018
Posts: 835
Likes: 433
From: Harrisburg,Pa.
Year: 1999
Model: Cherokee (XJ)
Engine: 4.0L
Well, ok but not necessarily... MOPAR does have part numbers for their tools...And while "socket" is correct "connector" could have been used for clarification...Anyhow is the socket/connector a serviceable part on it's own ??? That kind of stuff is a boneyard item for me most of the time...
Last edited by Corky; Nov 29, 2025 at 08:09 PM.
CF Veteran




Joined: Jun 2009
Posts: 2,607
Likes: 446
From: Michigan
Year: 1987 MJ, 1973 J2000, 1986 XJ, 08 JK
Model: Comanche (MJ)
Engine: 4.0L H.O
It's been 5 days... must not be that important
If your talking the jeep harness side of the connector - junkyard snip and pocket or someone's partout. If you happen to be talking about the lead end of the o2 sensor then you should prolly just replace the o2 completely
If your talking the jeep harness side of the connector - junkyard snip and pocket or someone's partout. If you happen to be talking about the lead end of the o2 sensor then you should prolly just replace the o2 completely
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