NGK V-Power Spark Plug ZFR6F-11G (6 Pack) Compatible with JEEP LIBERTY LIMITED 2002-2012 3.7L/226

ZFR6F-11G V-Powerª Performance Spark Plug (6987) by NGK¨. NGK spark plugs offer higher performance compared to standard plugs. NGK spark plugs feature a V-groove center electrode and concave ground electrode that lowers ignition voltage requirements while guiding the spark to occur between the sharper outside edges of the electrodes for improved ignitability and performance.