NTK O2 Sensor Backorder For 99 TJ 4.0

YonderNorthwest

TJ Enthusiast
Supporting Member
Joined
Dec 29, 2020
Messages
158
Location
Portland Oregon
Hey all. I've got a 99 Sahara that's got dwindling MPG and occasional missfires. Time to replace the original 225k mile old o2 sensors. Placed an order on ngk.com and quickly got a response that the parts are "on national back order with no ETA". Did some googling to find mopar or resell alternatives. Found the downstream sensor (NGK 23099) on ebay for $55. No luck yet on an upstream (NGK 23151) option.

I checked out Chris's thread about o2 sensors and it seems going with any other brand is a no go. Any suggestions?

Thanks
 
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