Spark Plug
NGK Iridium IX Spark Plug
IRIDIUM ALLOY CENTER ELECTRODE: Iridium's density (6x that of platinum) and extremely high melting point is perfect for modern high efficiency engines
RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
SINGLE IRIDIUM TIP: Fine wire 0.6 millimeter iridium tip center electrode ensures high durability and a consistently stable spark
SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
TAPERED CUT GROUND ELECTRODE: Reduced quenching design produces outstanding ignitability, improved acceleration, fuel efficiency and durability
TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
NGK Iridium IX Spark Plug
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.
NGK Iridium IX Plug
Iridium IX Spark Plug: Single Iridium Fine Wire, GR5IX
1961 Pontiac Parisienne
1961-1969 Chevrolet Bel Air
1961-1969 Chevrolet Biscayne
1961-1969 Chevrolet Impala
1964 Plymouth Fury
1965-1969 Chevrolet Corvette
1966 Dodge Polara
1966 Plymouth Belvedere
1966 Plymouth Fury
1966 Plymouth Satellite
1966-1967 Chevrolet Malibu
1966-1969 Chevrolet Caprice
1966-1970 Chevrolet Chevelle
1966-1970 Chevrolet El Camino
1966-1971 Dodge Coronet
1967 Dodge Charger
1967-1969 Chevrolet Camaro
1968 Chevrolet Chevy II
1968 GMC K15/K1500 Suburban
1968 GMC K25/K2500 Suburban
1968-1969 Chevrolet C10 Pickup
1968-1969 Chevrolet C10 Suburban
1968-1969 Chevrolet C20 Pickup
1968-1969 Chevrolet C20 Suburban
1968-1969 Chevrolet C30 Pickup
1968-1969 Chevrolet K10 Pickup
1968-1969 Chevrolet K10 Suburban
1968-1969 Chevrolet K20 Pickup
1968-1969 Chevrolet K30 Pickup
1968-1969 GMC C15/C1500 Pickup
1968-1969 GMC C15/C1500 Suburban
1968-1969 GMC C25/C2500 Pickup
1968-1969 GMC C25/C2500 Suburban
1968-1969 GMC C35/C3500 Pickup
1968-1969 GMC K15/K1500 Pickup
1968-1969 GMC K25/K2500 Pickup
1968-1969 GMC K35/K3500 Pickup
1970 Chevrolet Nova
1970-1971 Plymouth Cuda
1971 Plymouth Barracuda
1971-1973 Ford Pinto
1972 International M1100
1972 International M1200
1972 International M800 Post Office
1972-1973 International 1010
1972-1973 International 1110
1972-1973 International 1210
1972-1973 International 1310
1972-1974 International MS1210
1972-1979 Ford Courier
1974 International 100
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1974 International MHC1310
1974-1976 Ford Mustang II
1975-1976 Ford Pinto
1981 Ford Courier
1982 Buick Skyhawk
1982-1983 Pontiac J2000
1982-1985 Chevrolet S10
1982-1985 GMC S15
1983-1984 Chevrolet S10 Blazer
1983-1984 GMC S15 Jimmy
1984-1985 Pontiac J2000 Sunbird
1985-1988 Chevrolet Sprint
1985-1988 Pontiac Firefly
1986-1990 Pontiac Sunbird
1987 Buick Skyhawk
1987-1989 Pontiac Grand Am
1992-1994 Pontiac Sunbird