Did I buy the right O2 sensor?

[Miko1]

Hello Jeepers

I’m hoping you can help.

I changed out the O2 sensors down stream and I bought NTK sensors as replacements. But the one sensor I had in there originally is different from the one I got in the mail. The sensor that was in there is a Bosch, for the Bank1 Sensor2 and looks bigger and different. The one from NTK 23142 is smaller. My question is, the NTK 23142 is it the right one or do I need to go buy the Bosch O2 sensor. It’s for my 2003 Jeep Wrangler Sahara 4.0 it takes 4 sensors. The 2 up stream are good. Thank you kindly

 

[Moglocker]

Hello Jeepers

I’m hoping you can help.

I changed out the O2 sensors down stream and I bought NTK sensors as replacements. But the one sensor I had in there originally is different from the one I got in the mail. The sensor that was in there is a Bosch, for the Bank1 Sensor2 and looks bigger and different. The one from NTK 23142 is smaller. My question is, the NTK 23142 is it the right one or do I need to go buy the Bosch O2 sensor. It’s for my 2003 Jeep Wrangler Sahara 4.0 it takes 4 sensors. The 2 up stream are good. Thank you kindly

View attachment 357938

View attachment 357939

Where is the new one

 

[Jerry Bransford]

Hello Jeepers

I’m hoping you can help.

I changed out the O2 sensors down stream and I bought NTK sensors as replacements. But the one sensor I had in there originally is different from the one I got in the mail. The sensor that was in there is a Bosch, for the Bank1 Sensor2 and looks bigger and different. The one from NTK 23142 is smaller. My question is, the NTK 23142 is it the right one or do I need to go buy the Bosch O2 sensor. It’s for my 2003 Jeep Wrangler Sahara 4.0 it takes 4 sensors. The 2 up stream are good. Thank you kindly

View attachment 357938

View attachment 357939

NTK's 23142 is the correct downstream O2 sensor for cylinders 1-3. NTK 23141 is the correct downstream sensor for cylinders 4-6.

Bosch is not the correct sensor even though some guides say it is. It's set up for a different bias voltage than what the TJ provides.

 

[Miko1]

Where is the new one

I installed it

 

[Miko1]

NTK's 23142 is the correct downstream O2 sensor for cylinders 1-3. NTK 23141 is the correct downstream sensor for cylinders 4-6.

Bosch is not the correct sensor even though some guides say it is. It's set up for a different bias voltage than what the TJ provides.

View attachment 357950

Thank you Jerry. Really appreciate it.

NTK's 23142 is the correct downstream O2 sensor for cylinders 1-3. NTK 23141 is the correct downstream sensor for cylinders 4-6.

Bosch is not the correct sensor even though some guides say it is. It's set up for a different bias voltage than what the TJ provides.

View attachment 357950

Thank you Jerry. Really appreciate it