NGK Iridium IX Spark Plug Box of 4 (XR45IX)

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
1975	Buick	Apollo	Base
1975	Buick	Apollo	SR
1975-1977	Buick	Century	Base
1975-1977	Buick	Century	Custom
1975-1976	Buick	Century	Special
1977-1979	Buick	Electra	225
1980-1984	Buick	Electra	Estate Wagon
1977-1984	Buick	Electra	Limited
1978-1984	Buick	Electra	Park Avenue
1977-1983	Buick	Estate Wagon	Base
1976-1981	Buick	LeSabre	Base
1977-1978,1982-1984	Buick	LeSabre	Custom
1977	Buick	LeSabre	Custom Sport
1979-1984	Buick	LeSabre	Limited
1982	Buick	LeSabre	Limited Edition F/E
1981	Buick	LeSabre	Sport
1975-1977	Buick	Regal	Base
1976-1977	Buick	Regal	SR
1977-1984	Buick	Riviera	Base
1982	Buick	Riviera	Limited Edition
1983-1984	Buick	Riviera	Luxury
1978	Buick	Riviera	LXXV Anniversary Edition
1979-1980	Buick	Riviera	S
1981	Buick	Riviera	T-Type
1983	Buick	Riviera	XX Anniversary Edition
1975-1976	Buick	Skyhawk	Base
1975-1976	Buick	Skyhawk	S
1975-1977	Buick	Skylark	Base
1976-1977	Buick	Skylark	S
1975-1977	Buick	Skylark	SR
1979-1980	Cadillac	Eldorado	Base
1979-1980	Cadillac	Eldorado	Biarritz
1979-1980	Cadillac	Eldorado	Cabriolet
1976-1980	Cadillac	Seville	Base
1978-1980	Cadillac	Seville	Elegante
1977-1978	Cadillac	Seville	Opera
1973-1974	Oldsmobile	98	Base
1977-1981	Oldsmobile	98	Luxury
1973-1974,1977-1984	Oldsmobile	98	Regency
1982-1984	Oldsmobile	98	Regency Brougham
1973-1974,1977-1984	Oldsmobile	Custom Cruiser	Base
1975,1977	Oldsmobile	Cutlass	442
1975,1980	Oldsmobile	Cutlass	Base
1980-1981	Oldsmobile	Cutlass	Brougham
1977	Oldsmobile	Cutlass	Colonnade
1976-1977	Oldsmobile	Cutlass	Colonnade S
1980-1981	Oldsmobile	Cutlass	LS
1975-1977	Oldsmobile	Cutlass	S
1976-1979	Oldsmobile	Cutlass	Vista Cruiser
1979	Oldsmobile	Cutlass	Vista Cruiser Brougham
1978-1984	Oldsmobile	Cutlass Calais	Base
1983-1984	Oldsmobile	Cutlass Calais	Hurst
1980-1983	Oldsmobile	Cutlass Cruiser	Base
1980-1981	Oldsmobile	Cutlass Cruiser	Brougham
1979	Oldsmobile	Cutlass Salon	442
1975-1980,1985	Oldsmobile	Cutlass Salon	Base
1978-1980	Oldsmobile	Cutlass Salon	Brougham
1979	Oldsmobile	Cutlass Salon	Hurst
1975-1984	Oldsmobile	Cutlass Supreme	Base
1977-1984	Oldsmobile	Cutlass Supreme	Brougham
1976-1977	Oldsmobile	Cutlass Supreme	Colonnade
1975	Oldsmobile	Cutlass Supreme	Cruiser
1975	Oldsmobile	Cutlass Supreme	Hurst
1981	Oldsmobile	Cutlass Supreme	LS
1976	Oldsmobile	Cutlass Tiara	Base
1973-1983	Oldsmobile	Delta 88	Base
1980-1981	Oldsmobile	Delta 88	Holiday
1973-1984	Oldsmobile	Delta 88	Royale
1980-1984	Oldsmobile	Delta 88	Royale Brougham
1984	Oldsmobile	Delta 88	Royale Brougham LS
1975-1977	Oldsmobile	Omega	Base
1976-1977	Oldsmobile	Omega	Brougham
1977	Oldsmobile	Omega	Deluxe
1976-1977	Oldsmobile	Omega	F85
1975	Oldsmobile	Omega	Salon
1976-1977	Oldsmobile	Omega	SX
1975-1976	Oldsmobile	Starfire	Base
1976	Oldsmobile	Starfire	GT
1975	Oldsmobile	Starfire	S
1976	Oldsmobile	Starfire	SX
1973-1974	Oldsmobile	Toronado	Base
1973-1974,1977-1984	Oldsmobile	Toronado	Brougham
1977	Oldsmobile	Toronado	XS
1980-1981	Oldsmobile	Toronado	XSC
1977-1979	Oldsmobile	Toronado	XSR
1977-1981	Pontiac	Bonneville	Base
1977-1981	Pontiac	Bonneville	Brougham
1978-1981	Pontiac	Bonneville	Safari
1977-1981	Pontiac	Catalina	Base
1977-1981	Pontiac	Catalina	Safari
1977	Pontiac	Firebird	Base
1977	Pontiac	Firebird	Esprit
1977-1979	Pontiac	Firebird	Formula
1977-1979	Pontiac	Firebird	Trans Am
1976-1977	Pontiac	Grand LeMans	Base
1977	Pontiac	Grand LeMans	Safari
1977	Pontiac	Grand Prix	Base
1977	Pontiac	Grand Prix	LJ
1977	Pontiac	Grand Prix	SJ
1977-1978	Pontiac	Grand Safari	Base
1976-1977	Pontiac	LeMans	Base
1977	Pontiac	LeMans	Safari
1976-1977	Pontiac	LeMans	Sport
1977	Pontiac	Phoenix	Base
1976	Pontiac	Sunbird	Base
1976	Pontiac	Sunbird	SJ
1975-1977	Pontiac	Ventura	Base
1975	Pontiac	Ventura	Custom
1975	Pontiac	Ventura	S
1975-1977	Pontiac	Ventura	SJ