Denso EPR-U 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
1997 - 1999	Audi	A8	Base
1997 - 1999	Audi	A8 Quattro	Base
1990 - 1994	Audi	V8 Quattro	Base
1986 - 1988	Cadillac	Cimarron	Base
1986	Cadillac	Cimarron	d'Oro
1990	Chevrolet	Camaro	RS, Iroc-Z
1987	Chevrolet	Cavalier	CS
1988 - 1990	Chevrolet	Cavalier	VL
1987 - 1990	Chevrolet	Cavalier	Z24, Base, RS
1991 - 1995	Chevrolet	Lumina	Base
1995	Chevrolet	Lumina	LS
1991 - 1994	Chevrolet	Lumina	Z34, Euro
1995	Chevrolet	Monte Carlo	LS, Z34
1975 - 1976	Chevrolet	Vega	Base, Cosworth
1976	Chevrolet	Vega	Estate, GT, Sport
1975	Chevrolet	Vega	LX, Panel Express, Estate Wagon
1981 - 1983	DeLorean	DMC 12	Base
1990 - 1992	Dodge	Monaco	ES, LE
1988 - 1989	Eagle	Medallion	DL, LX
1990 - 1992	Eagle	Premier	ES Limited
1988 - 1992	Eagle	Premier	LX, ES
1986 - 1987	Ford	Aerostar	Base, XLT, XL
1992 - 1994	Ford	Crown Victoria	LX, S, Base
1993 - 1994	Ford	Crown Victoria	Police Interceptor
1992	Ford	Crown Victoria	Touring Sedan
1981 - 1990	Ford	Escort	Base
1981 - 1988	Ford	Escort	GL
1981 - 1983	Ford	Escort	GLX
1982 - 1990	Ford	Escort	GT
1984 - 1985	Ford	Escort	GT Turbo
1981 - 1986	Ford	Escort	L
1983 - 1990	Ford	Escort	LX
1990	Ford	Escort	LX Sport
1986 - 1990	Ford	Escort	Pony
1981	Ford	Escort	SS
1983 - 1988	Ford	EXP	Base, Luxury
1983	Ford	EXP	GT, HO
1986 - 1988	Ford	EXP	Sport
1984 - 1985	Ford	EXP	Turbo
2006	Ford	Explorer	XLS
2010	Ford	Explorer	XLT Base
2006 - 2010	Ford	Explorer	XLT, Limited, Eddie Bauer
2007 - 2010	Ford	Explorer Sport Trac	Limited, XLT, Base
1999	Ford	F-150	Austera, Lariat, Base
1995	Ford	F-150	Eddie Bauer, Special
1993 - 1999	Ford	F-150	Lightning, XLT, XL
1978 - 1980	Ford	Fiesta	Base
1980 - 1984	Ford	LTD	Base, Crown Victoria, Country Squire
1983 - 1984	Ford	LTD	Brougham
1980	Ford	LTD	S
1979 - 2010	Ford	Mustang	Base
2008 - 2009	Ford	Mustang	Bullitt, Shelby GT500KR
1981	Ford	Mustang	Cobra
1994	Ford	Mustang	Convertible
1979 - 1981	Ford	Mustang	Ghia
1983	Ford	Mustang	GL, GLX, Turbo GT
1983 - 2010	Ford	Mustang	GT
2006 - 2008	Ford	Mustang	GT Base
2006 - 2009	Ford	Mustang	GT Equipado
1984	Ford	Mustang	GT-350 20th Anniversary
1995	Ford	Mustang	GTS
1983 - 1984	Ford	Mustang	L
2007 - 2009	Ford	Mustang	Lujo
1984 - 1993	Ford	Mustang	LX
2008 - 2010	Ford	Mustang	Shelby
2007 - 2008	Ford	Mustang	Shelby GT
2007 - 2010	Ford	Mustang	Shelby GT500
1984 - 1986	Ford	Mustang	SVO
1993 - 1995	Ford	Mustang	SVT Cobra, SVT Cobra R
1990 - 1992	Ford	Probe	LX, GT, GL
1991 - 1992	Ford	Probe	SE, Base
1989 - 1992	Ford	Ranger	Custom
2009	Ford	Ranger	FX4
1989	Ford	Ranger	GT
2009 - 2010	Ford	Ranger	Limited
1984 - 1992	Ford	Ranger	S
1990	Ford	Ranger	S Plus
1993	Ford	Ranger	Splash
1991 - 2011	Ford	Ranger	Sport
1989 - 1993	Ford	Ranger	STX
1983 - 1984	Ford	Ranger	XLS
1983 - 2011	Ford	Ranger	XLT, XL, Base
1988 - 1991	Ford	Taurus	Base
1986 - 1991	Ford	Taurus	L
1986 - 1994	Ford	Taurus	LX, GL
1986 - 1988	Ford	Taurus	MT5
1989 - 1994	Ford	Taurus	SHO
1987	Ford	Tempo	AWD, Sport
1985 - 1986	Ford	Tempo	GLX, Base
1985 - 1987	Ford	Tempo	L, GL, LX
1983 - 1995	Ford	Thunderbird	Base, LX
1984 - 1986	Ford	Thunderbird	Elan
1985	Ford	Thunderbird	Equipado
1984 - 1985	Ford	Thunderbird	Fila
1983	Ford	Thunderbird	Heritage
1983 - 1986	Ford	Thunderbird	Sport, Turbo
1994 - 1995	Ford	Thunderbird	Super Coupe
1994	Ford	Thunderbird	V8
1981 - 1992	Jaguar	XJS	Base
1986 - 1988	Jaguar	XJS	C
1990 - 1991	Jaguar	XJS	Classic Collection
1989 - 1990	Jaguar	XJS	Collection Rouge
2006	Land Rover	LR3	Base
2005 - 2006	Land Rover	LR3	HSE, SE
1993 - 1995	Lincoln	Mark VIII	Base
1995	Lincoln	Mark VIII	LSC
1991 - 1994	Lincoln	Town Car	Cartier, Touring Edition, Base, Executive, Cypress, Signature
1993	Lincoln	Town Car	Jack Nicklaus
1994	Lincoln	Town Car	Tournament Edition
2003	Mazda	6	S, i
1994 - 1997	Mazda	B2300	Base, SE
1994 - 2002	Mazda	B3000	Base
2001 - 2003	Mazda	B3000	DS
1994 - 2003	Mazda	B3000	SE
2000	Mazda	B3000	SX
1999 - 2000	Mazda	B3000	Troy Lee
1994 - 1996	Mazda	B4000	SE, LE
1992 - 1994	Mazda	Navajo	DX
1991 - 1994	Mazda	Navajo	LX
1986 - 1993	Mercedes-Benz	190E	2.3
1986 - 1987	Mercedes-Benz	190E	2.3-16
1987 - 1993	Mercedes-Benz	190E	2.6
1983	Mercury	Capri	Crimson Cat, Black Magic, Base, L
1983 - 1984	Mercury	Capri	GS, RS
1984	Mercury	Capri	RS Turbo
1984 - 1986	Mercury	Cougar	Base, LS
1984 - 1995	Mercury	Cougar	XR-7
1992 - 1994	Mercury	Grand Marquis	GS, LS
1983	Mercury	LN7	RS, Grand Sport, Sport, Base
1983 - 1986	Mercury	Lynx	Base
1983 - 1985	Mercury	Lynx	GL
1983 - 1987	Mercury	Lynx	GS
1985 - 1987	Mercury	Lynx	L, XR3
1983 - 1984	Mercury	Lynx	LS, RS, LTS
2007 - 2010	Mercury	Mountaineer	Base, Premier
1986 - 1987	Mercury	Sable	GS, LS
1984 - 1987	Mercury	Topaz	Base, LS, GS
1987	Mercury	Topaz	Sport, Sport AWD, GS AWD, LS AWD, XR5
1994 - 1996	Mercury	Tracer	LS, Trio, Base, LTS
1985 - 1989	Merkur	XR4Ti	Base
1991 - 1995	Oldsmobile	Cutlass Supreme	Base, SL
1991 - 1993	Oldsmobile	Cutlass Supreme	International
1992 - 1994	Oldsmobile	Cutlass Supreme	S
1985 - 1986	Oldsmobile	Firenza	Cruiser LX
1985	Oldsmobile	Firenza	Cruiser SX, ES, Brougham LX, Brougham SX
1985 - 1987	Oldsmobile	Firenza	GT, Base
1986 - 1987	Oldsmobile	Firenza	S, Cruiser, LX, LC
1987 - 1989	Peugeot	505	Base, STX, S
1988 - 1989	Peugeot	505	DL
1987	Peugeot	505	GL, Liberte
1988	Peugeot	505	GLX, D
1987 - 1988	Peugeot	505	STI, GLS
1989	Peugeot	505	SW8
1977 - 1979	Peugeot	604	Base
1980	Peugeot	604	SL
1989	Pontiac	Firebird	Trans Am GTA SE
1989 - 1990	Pontiac	Firebird	Trans Am GTA, Formula, Trans Am, Base
1992 - 1995	Pontiac	Grand Prix	GTP
1991 - 1993	Pontiac	Grand Prix	LE, STE
1991 - 1995	Pontiac	Grand Prix	SE, GT
1984 - 1985	Renault	Fuego	Base
1984	Renault	Fuego	Turbo
1984 - 1986	Renault	R18i	Sportwagon
1980	Volvo	262	Base
1978 - 1979	Volvo	262	C
1976 - 1981	Volvo	262	GL
1976 - 1981	Volvo	264	GL
1980 - 1982	Volvo	264	GLE
1976	Volvo	265	Base
1977 - 1979	Volvo	265	GL
1980 - 1981	Volvo	265	GLE
1985 - 1990	Volvo	760	Base
1983 - 1990	Volvo	760	GLE
1987 - 1990	Volvo	780	Base