NGK Iridium IX Spark Plug Box of 4 (UR55IX)

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
1984-1992	Buick	Century	Custom
1984	Buick	Century	Estate
1985-1989	Buick	Century	Estate Wagon
1984-1992	Buick	Century	Limited
1984	Buick	Century	Olympia Limited
1991-1992	Buick	Century	Special
1990-1991	Buick	Skylark	Base
1983-1991	Buick	Skylark	Custom
1990-1991	Buick	Skylark	Gran Sport
1983-1989	Buick	Skylark	Limited
1990-1991	Buick	Skylark	Luxury Edition
1986-1987	Buick	Somerset	Custom
1986-1987	Buick	Somerset	Limited
1986	Buick	Somerset	T-Type
1985	Buick	Somerset Regal	Base
1985	Buick	Somerset Regal	Limited
1985-1990	Chevrolet	Astro	Base
1985	Chevrolet	Astro	CL
1985	Chevrolet	Astro	CS
1984-1986	Chevrolet	Camaro	Sport
1984-1990	Chevrolet	Celebrity	Base
1989	Chevrolet	Celebrity	CL
1985	Chevrolet	Celebrity	Classic
1985-1987	Chevrolet	Celebrity	Estate
1984-1990	Chevrolet	Celebrity	Eurosport
1984-1985	Chevrolet	Citation II	Base
1984-1985	Chevrolet	Citation II	X-11
1987-1993	Chevrolet	LLV	Base
1990-1992	Chevrolet	Lumina	Base
1978	Chevrolet	Monza	2+2
1978	Chevrolet	Monza	2+2 Sport
1978	Chevrolet	Monza	2+2 Spyder
1978	Chevrolet	Monza	Base
1978	Chevrolet	Monza	S
1978	Chevrolet	Monza	Sport
1985-1993	Chevrolet	S10	Base
1985-1990	Chevrolet	S10	Durango
1992-1993	Chevrolet	S10	EL
1985-1989	Chevrolet	S10	Sport
1985-1992	Chevrolet	S10	Tahoe
1985-1988	Chevrolet	S10 Blazer	Base
1987-1988	Chevrolet	S10 Blazer	High Country
1985-1988	Chevrolet	S10 Blazer	Sport
1985-1988	Chevrolet	S10 Blazer	Tahoe
1975	Chevrolet	Vega	Base
1975	Chevrolet	Vega	Estate Wagon
1975	Chevrolet	Vega	LX
1975	Chevrolet	Vega	Panel Express
1985-1990	GMC	S15	Base
1987	GMC	S15	EL
1986-1988	GMC	S15	Gypsy
1985-1990	GMC	S15	High Sierra
1985-1990	GMC	S15	Sierra Classic
1985-1988	GMC	S15 Jimmy	Base
1985-1988	GMC	S15 Jimmy	Gypsy
1985	GMC	S15 Jimmy	High Sierra
1985-1988	GMC	S15 Jimmy	Sierra Classic
1988	GMC	S15 Jimmy	Timberline
1985-1990	GMC	Safari	Base
1985	GMC	Safari	SL
1985	GMC	Safari	SLE
1985	GMC	Safari	SLX
1991-1993	GMC	Sonoma	Base
1991-1993	GMC	Sonoma	SLE
1993	GMC	Sonoma	SLS
1985	Oldsmobile	Calais	500
1985-1987	Oldsmobile	Calais	Base
1986	Oldsmobile	Calais	ES
1986-1987	Oldsmobile	Calais	GT
1985-1987	Oldsmobile	Calais	Supreme
1988-1991	Oldsmobile	Cutlass Calais	Base
1988-1991	Oldsmobile	Cutlass Calais	GT
1989-1991	Oldsmobile	Cutlass Calais	S
1988-1989	Oldsmobile	Cutlass Calais	SL
1988-1992	Oldsmobile	Cutlass Ciera	Base
1984-1988	Oldsmobile	Cutlass Ciera	Brougham
1984-1985	Oldsmobile	Cutlass Ciera	Cruiser LS
1985-1986	Oldsmobile	Cutlass Ciera	ES
1986-1987	Oldsmobile	Cutlass Ciera	GT
1985-1986	Oldsmobile	Cutlass Ciera	Holiday
1984-1988	Oldsmobile	Cutlass Ciera	LS
1986-1988,1990-1991	Oldsmobile	Cutlass Ciera	S
1986-1990	Oldsmobile	Cutlass Ciera	SL
1989-1990	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
1984	Oldsmobile	Omega	Base
1984	Oldsmobile	Omega	Brougham
1984	Oldsmobile	Omega	ES
1978	Oldsmobile	Starfire	Base
1978	Oldsmobile	Starfire	Firenza
1978	Oldsmobile	Starfire	GT
1978	Oldsmobile	Starfire	SX
1984-1989	Pontiac	6000	Base
1984-1991	Pontiac	6000	LE
1975	Pontiac	Astre	Base
1975	Pontiac	Astre	Custom
1975	Pontiac	Astre	GT
1975	Pontiac	Astre	GT Safari
1975	Pontiac	Astre	S
1975	Pontiac	Astre	S Safari
1975	Pontiac	Astre	Safari
1975	Pontiac	Astre	SJ
1975	Pontiac	Astre	SJ Safari
1984-1985	Pontiac	Fiero	Base
1984-1987	Pontiac	Fiero	SE
1984-1988	Pontiac	Fiero	Sport
1986-1988	Pontiac	Fiero	Value Leader
1984-1986	Pontiac	Firebird	Base
1984	Pontiac	Firebird	S/E
1985-1988	Pontiac	Grand Am	Base
1985-1991	Pontiac	Grand Am	LE
1987	Pontiac	Grand Am	SE
1991	Pontiac	Grand Am	Value Leader
1978,1984	Pontiac	Phoenix	Base
1984	Pontiac	Phoenix	LE
1978	Pontiac	Phoenix	LJ
1978	Pontiac	Phoenix	SJ
1978	Pontiac	Sunbird	Base
1978	Pontiac	Sunbird	Safari