OEM Downstream Oxygen Sensor for 2007-2012 Nissan Altima models equipped with the QR25DE powertrain.

This Sensor is installed after the catalytic converter on the exhaust. It often proves to be extremely difficult to remove, without destroying the threads, when installing an aftermarket set of headers or forced induction setup. These sensors are also referred to as a "Air-Fuel Ratio Sensor" by Nissan.

Sold Individually.

Fits:

• 2007-2012 Nissan Altima
  • 2.5L QR25DE equipped models only

NOTE: This is the California compliant variant. Z1 recommends the usage of an anti-seize compound on the threads of the oxygen sensor to make future servicing much easier.