Bank 1 Sensor 1=Upstream(right/rear), bank 2 sensor 1=Upstream(left/front), bank 1 sensor 2=Downstream(right/rear), bank 2 sensor 2=Downstream(left/front), please check the plug and the length of the sensor.
Compatible OEM part number:234-4296,2344296
Downstream Oxygen O2 Sensor Fits for:
Compatible with Nissan:
Altima L4-2.5L 2002 - 2006(Downstream)
Altima V6-3.5L 2005 2006(Downstream)
Sentra L4-2.5L 2002- 2006(Downstream)
X-Trail L4-2.5L 2005 2006(Downstream)
Maxima V6-3.5L 2004 - 2008(Downstream)
Murano V6-3.5L 2003 - 2007(Downstream)
Quest V6-3.5L 2004 - 2009(Downstream)
Compatible with Infiniti:
Q45 V8-4.5L 2002 - 2006(Downstream)
M45 V8-4.5L 2003 2004(Downstream)
FX45 V8-4.5L 2003 2004 2005 2006(Downstream)