Denso's patented U-Groove spark plug enables complete combustion by allowing the spark to fill the gap created by the "U" shape. The ball of fire created in the U-Groove develops a larger and hotter flash front that virtually eliminates excessive fouling and erratic starts caused by poor fuel mixtures.
Specifications and Options
|Spark Plug Number
||W24ESR-U, W27ESR-U, X22EPR-U9, X24EPR-U9, X24ESR-U