DENSO SPARK PLUGS

The Original U-Groove

DENSO’s patented U-Groove spark plug enables complete combustion by allowing the spark to � ll the gap created by the U shape. The ball of � re created in the U-Groove develops a larger and hotter � ash front that virtually eliminates excessive fouling and erratic starts caused by poor fuel mixtures.

Double Platinum

DENSO pioneered the use of platinum in spark plug manufac-turing. To maximize the longevity and durability of the spark plug, DENSO applied platinum to both the center and ground electrodes. Platinum o� ers superior resistance to erosion and corrosion enabling DENSO to create a spark plug capable of consistent, extended operation in excess of 60,000 miles.

Iridium Long Life

The DENSO Iridium Long Life plug is the standard for today’s high-tech engines. The proper-ties of DENSO’s patented iridi-um alloy have broken through the spark plug technology bar-rier. Employing a revolutionary new 360° laser-welding process, DENSO has created a spark plug unlike anything on the market today.