Denso R-L11 Resistor U-Groove Spark Plug

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.

Even DENSO's "standard" spark plug is something special. The innovative design that helped to make DENSO spark plugs famous, the U-groove plug employs a unique, channeled ground electrode designed to generate a larger spark nucleus at the point of ignition. Greater spark energy than ordinary plugs means improved flame travel, producing more complete, consistent, and efficient combustion.

Vehicle Fitments:

Year	Make	Model	Submodel
1992 - 1999	Honda	Civic	CX, EX, LX, DX, Si
1997 - 1999	Honda	Civic	EX-R
1998 - 1999	Honda	Civic	GX
1996 - 1999	Honda	Civic	HX
1999	Honda	Civic	Value Package, EX-R SIR
1992 - 1995	Honda	Civic	VX