SPARK PLUG NGK TR5

A highly popular, standard heat-range copper core spark plug designed as a direct stock replacement for many naturally aspirated engines, most notably GM General Motors LS-based V8 engines (such as the 4.8L, 5.3L, 5.7L, 6.0L, and 6.2L). It features a unique V-groove center electrode designed by NGK to improve ignitability, optimize fuel efficiency, and minimize spark quenching. MIN 4