Tune Up Kit for 2002-2003 Jeep KJ Liberty w/ 3.7L Engine Crown AutomotiveTune Up Kit for 2002 2003 Jeep KJ Liberty w 3. 7L Engine, Includes Air Filter, Oil Filter, Fuel Filter and Spark Plugs Features and Benefits: 12 Month Warranty For Models w 3. 7L Engine Includes Air Filter, Oil Filter, Fuel Filter and Spark Plugs Spark Plugs Are Not Pre Gapped Use Existing Hardware Details: Material: See Components Hardware Included: Use Existing Hardware Interchange: TK 41 Application: 2002 2003 Jeep KJ Liberty w 3. 7L Engine Crown