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
2005 - 2008	Audi	A8 Quattro	L Plus
2005 - 2009	Audi	A8 Quattro	L, Plus, Base
2010	BMW	550i	Active Dynamic
2006 - 2010	BMW	550i	Base
2006 - 2009	BMW	550i	Top, Formula 1
2006 - 2010	BMW	650i	Base
2006 - 2007	BMW	750i	Base, Sport
2006 - 2007	BMW	750Li	Base, Sport
2006	BMW	X5	4.4i Lujo, 4.8is, 4.4i, 4.4i Formula 1, 4.4i Top Line, 3.0i
2007	BMW	X5	4.8i Premium, 4.8i, 3.0si
2010	BMW	X5	xDrive35d, xDrive30i M Sport, xDrive48i M Sport, xDrive30i, xDrive48i, M
2010	BMW	X6	xDrive35i, xDrive50i, xDrive35iA, xDrive50iA, ActiveHybrid, M
2007	Chrysler	Aspen	Limited
2004	Dodge	Dakota	Base, Sport Plus, SLT Plus
2009 - 2010	Dodge	Dakota	Big Horn, Lone Star
2005 - 2010	Dodge	Dakota	Laramie, ST
2004 - 2008	Dodge	Dakota	Sport
2004 - 2010	Dodge	Dakota	SXT, SLT
2008	Dodge	Dakota	TRX
2008 - 2010	Dodge	Dakota	TRX4
2006 - 2008	Dodge	Durango	Adventurer
2000 - 2007	Dodge	Durango	Base
2004 - 2009	Dodge	Durango	Limited
2009	Dodge	Durango	Limited Hybrid, SE
2000 - 2003	Dodge	Durango	R/T, Sport
2000 - 2009	Dodge	Durango	SLT
2000 - 2008	Dodge	Durango	SLT Plus
2004 - 2005	Dodge	Durango	ST
2003 - 2008	Dodge	Durango	SXT
2007 - 2008	Dodge	Nitro	ATX
2009 - 2011	Dodge	Nitro	Base
2010 - 2011	Dodge	Nitro	Detonator, Shock, Heat
2007	Dodge	Nitro	MTX, SLT Premium
2008 - 2011	Dodge	Nitro	SE
2007 - 2009	Dodge	Nitro	SLT, R/T
2007 - 2011	Dodge	Nitro	SXT
2011	Dodge	Nitro	SXT Premium
2002	Dodge	Ram 1500	Custom
2003 - 2010	Dodge	Ram 1500	Laramie
2004 - 2006	Dodge	Ram 1500	SRT-10
2002 - 2010	Dodge	Ram 1500	ST, SLT
2008	Dodge	Ram 1500	SXT
2009 - 2010	Dodge	Ram 1500	TRX
2006 - 2010	Dodge	Ram 1500	TRX4, Sport
1994 - 2002	Dodge	Ram 2500	Base
1995 - 2002	Dodge	Ram 2500	Custom
1996 - 2003	Dodge	Ram 2500	Laramie
1995 - 1998	Dodge	Ram 2500	Lujo, Limited
1995 - 1997	Dodge	Ram 2500	Runner
1999 - 2003	Dodge	Ram 2500	SLT
2003	Dodge	Ram 2500	ST
1994 - 2002	Dodge	Ram 3500	Base
1995 - 2002	Dodge	Ram 3500	Custom
2003	Dodge	Ram 3500	Laramie, ST
1999 - 2003	Dodge	Ram 3500	SLT
1996	Honda	Accord	25th Anniversary Edition
1998 - 2000	Honda	Accord	Coupe
1996 - 2002	Honda	Accord	LX, Value Package, DX, EX, EX-R
1997 - 2002	Honda	Accord	SE
1998	Honda	Civic	CX, EX-R
1998 - 2005	Honda	Civic	GX, LX, DX, EX, HX, Si
2003 - 2005	Honda	Civic	Hybrid
2005	Honda	Civic	LX Special Edition, Reverb, EX Special Edition
2002 - 2004	Honda	Civic	SiR
2004 - 2005	Honda	Civic	Value Package
1999 - 2001	Honda	CR-V	LX, EX
2000 - 2001	Honda	CR-V	SE
1997 - 2001	Honda	Prelude	Base, Type SH
1995	Honda	Prelude	SE
1992 - 1994	Honda	Prelude	Si 4WS
1992 - 1996	Honda	Prelude	Si, S
1993 - 1996	Honda	Prelude	VTEC
2006	Jeep	Commander	65 Aniversario, 65th Anniversary Edition
2006 - 2007	Jeep	Commander	Base
2006 - 2010	Jeep	Commander	Limited Premium, Limited
2007 - 2009	Jeep	Commander	Overland
2007 - 2010	Jeep	Commander	Sport
2006	Jeep	Grand Cherokee	65th Anniversary Edition
1999 - 2010	Jeep	Grand Cherokee	Laredo, Limited
2005 - 2010	Jeep	Grand Cherokee	Limited Premium
2002 - 2009	Jeep	Grand Cherokee	Overland
2010	Jeep	Grand Cherokee	S Limited, North Edition, SRT
2004	Jeep	Grand Cherokee	SE, Special Edition
2002	Jeep	Grand Cherokee	Sport
2006 - 2010	Jeep	Grand Cherokee	SRT8
2002	Jeep	Liberty	Base
2012	Jeep	Liberty	Jet, Limited Edition
2011 - 2012	Jeep	Liberty	Limited Jet
2002 - 2012	Jeep	Liberty	Limited, Sport
2008 - 2012	Jeep	Liberty	North Edition
2002 - 2011	Jeep	Liberty	Renegade
2005	Jeep	Liberty	Rocky Mountain Edition
2008 - 2009	Jeep	Liberty	Sky Slider
2006	Jeep	Liberty	Sport 65 Aniversario, 65th Anniversary Edition
2007	Jeep	Liberty	Sport Edicion Especial
2010	Jeep	Wrangler	Islander, Unlimited Mountain, Unlimited Sport, Sport
2009 - 2010	Jeep	Wrangler	Unlimited X, Sahara, X, Unlimited Sahara, Unlimited Rubicon, Rubicon
2009	Jeep	Wrangler	X-S
2000 - 2001	Mazda	Millenia	Base
2000	Mazda	Millenia	Millennium Edition, S
2000	Mazda	Protege	ES, LX, DX
2006 - 2007	Mitsubishi	Raider	DuroCross
2006 - 2009	Mitsubishi	Raider	LS
2007	Mitsubishi	Raider	SE
2006	Mitsubishi	Raider	XLS
2012	Ram	1500	Express, Tradesman HD
2011 - 2012	Ram	1500	Laramie, Sport, Laramie Longhorn, Big Horn, ST, Tradesman, SLT, Outdoorsman
2011	Ram	1500	SXT
2011	Ram	Dakota	Laramie, Big Horn, TRX, ST, SXT, TRX4, SLT
2004 - 2006	Volkswagen	Phaeton	V8, W12