O2 Sensor: OE brand

[yeldogt]

Anyone know the OE sensor brand? My guess is Denso .. but not sure. I'm getting an intermittent code for the one upper bank.

[atraudes]

I'm almost certain the OE was Bosch. Check out this thread before buying new sensors, though.

[barnaclebob]

Yep it was Bosch. No problems since my install which was about 9 months ago mentioned in the linked thread.

[fueler]

I thought it was Denso, went to install it and found that factory was Bosch.

I am still throwing the same O2 sensor code with the new Denso sensor, I wonder if it could be brand compatibility, or a bad cat (since this O2 sensor is downstream)?

[yeldogt]

I'm still trying to get the Bosch part numbers .. some say the rears are both the same sensor.

I have an 02 ... past the engine change over date. The early 2001 cars had the 3.3 V6 ..Nissan changed the engine mid model year.

The 3.5 is a better motor.

[barnaclebob]

The markings on my bosch downstream sensor that is the OEM replacement (bought the wrong side) from courtesy parts is "A24-871 158 3Z250" I couldn't find anything generic by that part number for the other side and didn't want to pay for the expensive OEM version so just went with the autozone bosch which looked the exact same.

The rears will be the same sensor with a slightly different wire harness length and snap fastener points.