Oxygen Sensor 13772/234-4349 Downstream O2 Sensor 2 for 2004 2005 2006 2007 2008 Mazda RX-8 R2 1.3L, for 2009 2010 2011 Mazda RX-8 Auto Trans R2 1.3L COMPATIBLE WITH OEM: N3H318861B9U, N3H3-18-861B9U, 13772, 13772, 2344349, 234-4349, 22506, 10990900 Length (Sensor to Lead): 300 mm ( 11.81 inch). Wires: 4 Oxygen Sensor O2 Downstream 234-4349 13772 for 2004-2008 Mazda RX-8 Downstream Oxygen Sensor 13772 234-4349 for 2004-2008 Mazda RX-8 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.