OEM Upstream Oxygen Sensor for 2011-2012 Nissan Frontier models equipped with the VQ40DE powertrain.

This sensor is installed before the catalytic converter 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: There is a total of 2 upstream sensors on the VQ40DE powertrain.

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

Fits:

• 2011-2012 Nissan Frontier (VQ40DE)