NGK Iridium IX Spark Plug Box of 4 (TR4IX)

NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.

This Part Fits:

Year	Make	Model	Submodel
1987-1989,1993	Buick	Century	Custom
1987-1988	Buick	Century	Estate Wagon
1987-1989,1993	Buick	Century	Limited
1993	Buick	Century	Special
2009-2011	Buick	Lucerne	CX
2009-2011	Buick	Lucerne	CXL
2010	Buick	Lucerne	CXL Special Edition
1988-1993	Buick	Regal	Custom
1989	Buick	Regal	Gran Sport
1988-1993	Buick	Regal	Limited
1987-1989	Buick	Skyhawk	Custom
1987	Buick	Skyhawk	Limited
1988-1989	Buick	Skyhawk	SE
1987	Buick	Skyhawk	Sport
1987	Buick	Skyhawk	T-Type
2006-2007	Buick	Terraza	CX
2006-2007	Buick	Terraza	CXL
1987-1988	Cadillac	Cimarron	Base
1987-1993	Chevrolet	Beretta	Base
1989-1993	Chevrolet	Beretta	GT
1991-1993	Chevrolet	Beretta	GTZ
1990	Chevrolet	Beretta	Indianapolis 500 Pace Car
1987-1990	Chevrolet	Cavalier	Base
1987	Chevrolet	Cavalier	CS
1987-1994	Chevrolet	Cavalier	RS
1988-1993	Chevrolet	Cavalier	VL
1987-1994	Chevrolet	Cavalier	Z24
1987-1990	Chevrolet	Celebrity	Base
1989	Chevrolet	Celebrity	CL
1987	Chevrolet	Celebrity	Estate
1987-1990	Chevrolet	Celebrity	Eurosport
1987-1989	Chevrolet	Corsica	Base
1987-1988,1990-1993	Chevrolet	Corsica	LT
1989-1990,1992	Chevrolet	Corsica	LTZ
2008	Chevrolet	Impala	50th Anniversary Edition
2006-2011	Chevrolet	Impala	LS
2006-2011	Chevrolet	Impala	LT
2006-2011	Chevrolet	Impala	LTZ
2006-2011	Chevrolet	Impala	Police
1990-1994	Chevrolet	Lumina	Base
1990-1994	Chevrolet	Lumina	Euro
2008	Chevrolet	Malibu	Classic LS
2008	Chevrolet	Malibu	Classic LT
2007-2010	Chevrolet	Malibu	LS
2007,2009	Chevrolet	Malibu	LT
2007	Chevrolet	Malibu	LTZ
2007	Chevrolet	Malibu	Maxx LS
2007	Chevrolet	Malibu	Maxx LT
2007	Chevrolet	Malibu	Maxx LTZ
2006-2007	Chevrolet	Malibu	Maxx SS
2006-2007	Chevrolet	Malibu	SS
2006-2007	Chevrolet	Monte Carlo	LS
2006-2007	Chevrolet	Monte Carlo	LT
2006	Chevrolet	Monte Carlo	LTZ
2007-2008	Chevrolet	Uplander	Base
2007-2008	Chevrolet	Uplander	LS
2006-2008	Chevrolet	Uplander	LT
1988-1989,1993	Oldsmobile	Cutlass Ciera	Base
1987-1988	Oldsmobile	Cutlass Ciera	Brougham
1987	Oldsmobile	Cutlass Ciera	GT
1987-1988	Oldsmobile	Cutlass Ciera	LS
1987-1988,1993	Oldsmobile	Cutlass Ciera	S
1987-1989	Oldsmobile	Cutlass Ciera	SL
1989	Oldsmobile	Cutlass Cruiser	Base
1987	Oldsmobile	Cutlass Cruiser	Brougham
1988	Oldsmobile	Cutlass Cruiser	Brougham LS
1987-1988	Oldsmobile	Cutlass Cruiser	LS
1988-1989	Oldsmobile	Cutlass Cruiser	SL
1988-1993	Oldsmobile	Cutlass Supreme	Base
1988	Oldsmobile	Cutlass Supreme	Indy 500 Pace Car
1988-1993	Oldsmobile	Cutlass Supreme	International
1992-1993	Oldsmobile	Cutlass Supreme	S
1988-1991	Oldsmobile	Cutlass Supreme	SL
1987-1988	Oldsmobile	Firenza	Base
1987-1988	Oldsmobile	Firenza	Cruiser
1987	Oldsmobile	Firenza	GT
1987	Oldsmobile	Firenza	LC
1987	Oldsmobile	Firenza	LX
1987	Oldsmobile	Firenza	S
1987-1988	Pontiac	6000	Base
1987-1991	Pontiac	6000	LE
1987-1988	Pontiac	6000	SE
1989-1991	Pontiac	6000	Special Edition
1987-1989	Pontiac	6000	STE
2007-2010	Pontiac	G6	Base
2007-2010	Pontiac	G6	GT
2006	Pontiac	G6	GTP
1988-1989	Pontiac	Grand Prix	Base
1991-1993	Pontiac	Grand Prix	GT
1988-1993	Pontiac	Grand Prix	LE
1988-1993	Pontiac	Grand Prix	SE
1990-1993	Pontiac	Grand Prix	STE
2006	Pontiac	Montana	SV6
1991-1994	Pontiac	Sunbird	GT
1991,1994	Pontiac	Sunbird	LE
1993	Pontiac	Sunbird	LE Value Leader
1991-1994	Pontiac	Sunbird	SE
2007-2008	Saturn	Aura	XE
2007	Saturn	Relay	1
2007	Saturn	Relay	2
2006-2007	Saturn	Relay	3
2008-2010	Saturn	Vue	XE