OEM Upstream Oxygen Sensor for 2005-2012 Nissan Frontier models equipped with the QR25DE powertrain.

This sensor is installed before the catalytic converters on the exhaust manifold, these sensors often prove 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.

Note: This sensor only fits the 2005-2012 Frontiers with the QR25DE powertrain.

Z1 recommends the usage of an anti-seize compound on the threads of the oxygen sensor to make future servicing much easier.

Fits:

• 2005-2012 Nissan Frontier (QR25DE)