Application:For 2002-2003 Jeep Liberty V6 3.7L Description:100% Brand New and High QualityQuantity??4Warranty??1 YearBetter Fuel Economy4 wire configurationDirect Plug-In Replacement.Built and tested to strict quality control standards Package Include:4 x Oxygen Sensor as pictured(1xUpstream Left&1xUpstream Right&1xDownstream Left&1xDownstream Right?? Note: Please check pictures for more detail Please check the part number on your old part housing before purchase. If you are not sure whether or not a part in our store will fit your vehicle, please feel free to contact us.