Specifications: TypeOxygen Sensor Length (Sensor to Lead)380mm,400mm Wires: 4 Interchange Part Number: 234-4301,234-5060Fitment for: 2004.From 01/04-2006 Nissan Altima 3.5L Upstream+Downstream,Requires 4 Sensors 2004-2006 Nissan Maxima 3.5L Manual Trans Upstream+Downstream,Requires 4 Sensors 2007-2008 Nissan Maxima 3.5L Upstream+Downstream,Requires 4 Sensors 2004-2007 Nissan Murano 3.5L Upstream+Downstream,Requires 4 Sensors 2004 Nissan Quest 3.5L Upstream Front+Downstream Front 2005-2006 Nissan Quest SE 3.5L Upstream Front+Downstream Front 2005-2006 Nissan Quest Exc. SE 3.5L Upstream+Downstream,Requires 4 Sensors 2007-2009 Nissan Quest 3.5L Upstream Front+Downstream FrontPackage Includes: 4 pcs Oxygen Sensor Note :Before buying, please check the note, color, position, year make model. Please make sure to match the exact part numbers between this part and the part that you are replacing. Contact your mechanics, or send us a message to make sure it matches exactly in case of doubt before purchasing. If one does not match, please do not buy it. Return Policy All of our items come with a 30-day free return policy. If you need to return, please contact us, let us know the detailed problem and send us some pictures for confirmation. We reserve the right to refuse any returns for objective reasons. Shipping Policy All of our items are shipped free with tracking numbers. Orders will be shipped within 3 working days upon receipt of payment. Most orders will be shipped within 1 working day. In most cases, shipping takes 8-12 working days.