Specifications: Type:Oxygen Sensor Length (Sensor to Lead)560mm,520mm Interchange Part Number: 234-4122(Upstream),234-4621(Downstream)Fitment for: Please check fitment notes & description for accurate information. Year Make Model Engine 2001-2003 Honda Civic 1.7L 2001-2003 Acura EL 1.7L 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. Package Includes: 2pcs Oxygen Sensor 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.