Denso R-U11 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
1989	Daihatsu	Charade	CES
1988 - 1989	Daihatsu	Charade	CLS, CLX
1988	Daihatsu	Charade	CSX
1990 - 1992	Daihatsu	Charade	SE, SX
2002 - 2004	Hyundai	Santa Fe	Base
2001	Hyundai	Santa Fe	GL
2001 - 2004	Hyundai	Santa Fe	LX, GLS
1990 - 2004	Hyundai	Sonata	Base
1990 - 2005	Hyundai	Sonata	GLS, GL
2002 - 2005	Hyundai	Sonata	LX
2005	Hyundai	Sonata	VE, GLX
2004 - 2006	Kia	Optima	EX
2001 - 2006	Kia	Optima	LX
2001 - 2003	Kia	Optima	SE
1986 - 1994	Mazda	323	DX, Base
1988	Mazda	323	GT
1988 - 1989	Mazda	323	GTX
1986 - 1991	Mazda	323	LX
1988 - 1993	Mazda	323	SE
1990 - 1993	Mazda	B2200	LE-5, Base, SE-5
1987 - 1988	Mazda	B2600	SE-5, LX, Base
1997 - 1999	Mitsubishi	3000GT	SL, Base, VR-4
1990 - 1992	Mitsubishi	Mighty Max	1 Ton
1983 - 1994	Mitsubishi	Mighty Max	Base
1983 - 1984	Mitsubishi	Mighty Max	S
1983 - 1985	Mitsubishi	Mighty Max	SP
1986	Mitsubishi	Mighty Max	Sport
1983 - 1986	Mitsubishi	Mighty Max	SPX
1997 - 1999	Mitsubishi	Mirage	DE
1993 - 1995	Mitsubishi	Mirage	ES
1992 - 1999	Mitsubishi	Mirage	LS
1993 - 1996	Mitsubishi	Mirage	S
1992	Mitsubishi	Mirage	VL, Base, GS, SE
1983 - 1993	Mitsubishi	Montero	Base
1989 - 1994	Mitsubishi	Montero	LS
1990 - 1993	Mitsubishi	Montero	RS
1989 - 1990	Mitsubishi	Montero	SP
1984 - 1990	Mitsubishi	Montero	Sport
1992 - 1994	Mitsubishi	Montero	SR
1987 - 1988	Nissan	Pulsar NX	XE, SE
1985 - 1986	Nissan	Sentra	DX
1987 - 1988	Nissan	Sentra	GXE, E
1985 - 1988	Nissan	Sentra	SE, Base, XE