Description:

DENSO patented U-Groove spark plugs enables complete combustion by allowing the spark to fill the gcreated 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. Model # K20R-U11 Features: For This Item Spark Plugs Standard DENSO # 3139 -- K20R-U11 1order = 6 Pieces.