NTK 23142 Oxygen Sensor

Had a Bank 2 Sensor 2 Downstream code P0161 code on my 2003 Jeep Liberty. The part came in earlier than expected from seller. I've driven the car a little over 100 miles since replacement and No Codes thus far... The night before replacing the sensor I drove home from work then got under the car in my driveway and sprayed the old sensor down with PB Blaster while exhaust was still hot and let it sit overnight. Next day I used the special 7/8th inch O2 sensor wrench with an 18 inch breaker bar and the old sensor broke free very easily. I spun the old sensor in and out slowly so as to not mar the threads. I then cleaned the area and threads. Put the new sensor in using a little more Anti-Sieze on the threads than what was supplied on the sensor (very little supplied on it). Torqued it down till the crush washer seated... Time will tell how long it lasts but Allll good so far...

Outstanding, perfect fit for plugs and wire length.

It’s an oxygen sensor that worked on my 2003 4.0 Wrangler.

It has been said online that TJ O2 sensors from cheaper manufacturers will give the computer readings that it does not like. This is a factory part and so it makes the ECU happy.

Exact fit for 2001 jeep wrangler 4.0

This fit perfectly in my 2003 Jeep Wrangler X (4.0 I6), even came with anti-seize on the threads already. There are (4) O2 sensors and this one is for the downstream (after the catalytic converter). It's the sensor towards the front (shorter wire). If you need the downstream O2 sensor towards the rear you want the NGK 23141 (longer wire).

I had check engine light for rear bank oxygen sensor. I went ahead and replaced all 4 oxygen sensors(192,000 miles).Replaced flange bolts @ cat converter (leak there probably caused light to begin with).Light went out. 2002 Jeep Wrangler TJ 4.0 L a/tIf you get a OBD code for small vacuum leak, check you gas cap. Often times gasket ring inside cap is worn out.Sometimes people lose caps and replace with what they think is a fitting cap.Replace as needed. It can save you hours looking for a leak under the hood....when it was that darn cap the whole time.Keep in mind, it only has to be a small leak to set off a code.Keep on Jeeping

I buy certain things from the stealership, that is Jeep, when it comes to servicing my vehicle. One of which has always been O2 sensors, but when they tried to charge me $100 per sensor I nearly laughed. I found out that NGK is the OEM manufacturer for Jeep and found these to work flawlessly. Thank you Amazon and NGK.