Ntk upstream o2 sensor discontinued

mech5378887

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Joined
Jun 8, 2023
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Location
Illinois
Can anyone tell me if there is other brands of O2 sensors that work fine in Jeeps im needing an upstream for my 2.5l 2000 Tj and ngk o2 sensor I need says it has been discontinued
 
The upstream sensor p/n is NTK 23506.

An alternate is the Denso (OE equivalent) 2344077. I just switched to a Denso to see if it would solve my lean condition I've been chasing for years. So far, it looks promising. I had to edit my response after finding out your 2000 is different from the 2001's (different part numbers).
 
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I'm running into the same problem with my kids XJ. I can find the NTK upstream, but the downstream looks to be discontinued. I may try Denso.