Oxygen O2 Sensor 234-4309 Downstream For 2002 2003 Nissan Sentra L4 2.5L, for 2002 2003 Nissan Altima L4 2.5L COMPATIBLE WITH OEM: 2344296, 226902A000, 226902A010, 226908J001, 226908J010, 226918U000 Length (Sensor to Lead): 500 mm. Wires: 4 Downstream oxygen sensor 2 for 2002 2003 Nissan Sentra L4 2.5L Post-cat oxygen sensor for 2002 2003 Nissan Altima L4 2.5L downstream Please check the description or use the year/make/model drop down bar and interchangeable part numbers to confirm the compatibility before purchase. Warranty: 1 year unlimited miles.