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:
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1994 | Dodge | Ram 3500 | Base |
| 1966-1974 | Ford | Bronco | Base |
| 1980-1986 | Ford | Bronco | Custom |
| 1985-1986 | Ford | Bronco | Eddie Bauer |
| 1980-1981 | Ford | Bronco | Ranger XLT |
| 1968-1969 | Ford | Bronco | Roadster |
| 1968-1973 | Ford | Bronco | Wagon |
| 1982-1983 | Ford | Bronco | XLS |
| 1984-1986 | Ford | Bronco | XLT |
| 1982-1983 | Ford | Bronco | XLT Lariat |
| 1955-1959 | Ford | Club | Base |
| 1962-1965,1967 | Ford | Club Wagon | Base |
| 1967 | Ford | Club Wagon | Custom |
| 1963,1967 | Ford | Club Wagon | Deluxe |
| 1955-1974 | Ford | Country Sedan | Base |
| 1955-1974 | Ford | Country Squire | Base |
| 1955-1960 | Ford | Courier Sedan Delivery | Base |
| 1957,1964-1972 | Ford | Custom | Base |
| 1958-1960 | Ford | Custom 300 | Base |
| 1964-1974 | Ford | Custom 500 | Base |
| 1955-1956 | Ford | Customline | Base |
| 1957-1958 | Ford | Del Rio Wagon | Base |
| 1969-1982 | Ford | E-100 Econoline | Base |
| 1975-1982 | Ford | E-100 Econoline | Chateau |
| 1969-1974 | Ford | E-100 Econoline | Club Wagon |
| 1975-1983 | Ford | E-100 Econoline | Custom |
| 1975-1978 | Ford | E-100 Econoline | Northland |
| 1983 | Ford | E-100 Econoline | XL |
| 1975-1982 | Ford | E-100 Econoline Club Wagon | Base |
| 1975-1982 | Ford | E-100 Econoline Club Wagon | Chateau |
| 1975-1983 | Ford | E-100 Econoline Club Wagon | Custom |
| 1975-1978 | Ford | E-100 Econoline Club Wagon | Northland |
| 1983 | Ford | E-100 Econoline Club Wagon | XL |
| 1975-1982,1984-1986 | Ford | E-150 Econoline | Base |
| 1975-1982 | Ford | E-150 Econoline | Chateau |
| 1975-1983 | Ford | E-150 Econoline | Custom |
| 1975-1978 | Ford | E-150 Econoline | Northland |
| 1983-1986 | Ford | E-150 Econoline | XL |
| 1975-1982,1984-1986 | Ford | E-150 Econoline Club Wagon | Base |
| 1975-1982 | Ford | E-150 Econoline Club Wagon | Chateau |
| 1975-1983 | Ford | E-150 Econoline Club Wagon | Custom |
| 1975-1978 | Ford | E-150 Econoline Club Wagon | Northland |
| 1983-1986 | Ford | E-150 Econoline Club Wagon | XL |
| 1984-1986 | Ford | E-150 Econoline Club Wagon | XLT |
| 1969-1974 | Ford | E-200 Econoline | Base |
| 1971-1972 | Ford | E-200 Econoline | Chateau Wagon |
| 1969-1974 | Ford | E-200 Econoline | Club Wagon |
| 1970-1974 | Ford | E-200 Econoline | Custom Wagon |
| 1975-1982,1984-1986 | Ford | E-250 Econoline | Base |
| 1975-1982 | Ford | E-250 Econoline | Chateau |
| 1975-1983 | Ford | E-250 Econoline | Custom |
| 1975-1978 | Ford | E-250 Econoline | Northland |
| 1983-1986 | Ford | E-250 Econoline | XL |
| 1977-1980,1984-1986 | Ford | E-250 Econoline Club Wagon | Base |
| 1977-1980 | Ford | E-250 Econoline Club Wagon | Chateau |
| 1977-1980,1983 | Ford | E-250 Econoline Club Wagon | Custom |
| 1977-1978 | Ford | E-250 Econoline Club Wagon | Northland |
| 1983-1986 | Ford | E-250 Econoline Club Wagon | XL |
| 1984-1986 | Ford | E-250 Econoline Club Wagon | XLT |
| 1969-1974 | Ford | E-300 Econoline | Base |
| 1970-1974 | Ford | E-300 Econoline | Chateau Wagon |
| 1969-1974 | Ford | E-300 Econoline | Club Wagon |
| 1971-1972 | Ford | E-300 Econoline | Custom Wagon |
| 1975-1982,1984-1986 | Ford | E-350 Econoline | Base |
| 1975-1982 | Ford | E-350 Econoline | Chateau |
| 1975-1983 | Ford | E-350 Econoline | Custom |
| 1975-1978 | Ford | E-350 Econoline | Northland |
| 1983-1986 | Ford | E-350 Econoline | XL |
| 1977-1982,1984-1986 | Ford | E-350 Econoline Club Wagon | Base |
| 1977-1982 | Ford | E-350 Econoline Club Wagon | Chateau |
| 1977-1983 | Ford | E-350 Econoline Club Wagon | Custom |
| 1977-1978 | Ford | E-350 Econoline Club Wagon | Northland |
| 1983-1986 | Ford | E-350 Econoline Club Wagon | XL |
| 1984-1986 | Ford | E-350 Econoline Club Wagon | XLT |
| 1961-1967 | Ford | Econoline | Base |
| 1961-1974,1976-1978,1983 | Ford | F-100 | Base |
| 1975-1982 | Ford | F-100 | Custom |
| 1975-1978 | Ford | F-100 | Northland |
| 1975-1981 | Ford | F-100 | Ranger |
| 1978-1981 | Ford | F-100 | Ranger Lariat |
| 1975-1981 | Ford | F-100 | Ranger XLT |
| 1982-1983 | Ford | F-100 | XL |
| 1982-1983 | Ford | F-100 | XLS |
| 1977 | Ford | F-100 | XLT |
| 1982-1983 | Ford | F-100 | XLT Lariat |
| 1976-1978,1983-1986 | Ford | F-150 | Base |
| 1975-1982 | Ford | F-150 | Custom |
| 1975-1978 | Ford | F-150 | Northland |
| 1975-1981 | Ford | F-150 | Ranger |
| 1978-1981 | Ford | F-150 | Ranger Lariat |
| 1975-1981 | Ford | F-150 | Ranger XLT |
| 1982-1986 | Ford | F-150 | XL |
| 1982-1983 | Ford | F-150 | XLS |
| 1977,1983-1984 | Ford | F-150 | XLT |
| 1982,1985-1986 | Ford | F-150 | XLT Lariat |
| 1961-1974,1976-1978,1983-1986 | Ford | F-250 | Base |
| 1975-1982 | Ford | F-250 | Custom |
| 1975-1978 | Ford | F-250 | Northland |
| 1975-1981 | Ford | F-250 | Ranger |
| 1978-1981 | Ford | F-250 | Ranger Lariat |
| 1975-1981 | Ford | F-250 | Ranger XLT |
| 1982-1986 | Ford | F-250 | XL |
| 1982-1983 | Ford | F-250 | XLS |
| 1977,1983-1984 | Ford | F-250 | XLT |
| 1982,1985-1986 | Ford | F-250 | XLT Lariat |
| 1961-1974,1976-1978,1983-1986 | Ford | F-350 | Base |
| 1975-1982 | Ford | F-350 | Custom |
| 1975-1978 | Ford | F-350 | Northland |
| 1975-1981 | Ford | F-350 | Ranger |
| 1978-1981 | Ford | F-350 | Ranger Lariat |
| 1975-1981 | Ford | F-350 | Ranger XLT |
| 1982-1986 | Ford | F-350 | XL |
| 1982-1983 | Ford | F-350 | XLS |
| 1977,1983-1984 | Ford | F-350 | XLT |
| 1982,1985-1986 | Ford | F-350 | XLT Lariat |
| 1975-1977 | Ford | F-500 | Custom |
| 1957-1962,1964-1970 | Ford | Fairlane | 500 |
| 1966-1967 | Ford | Fairlane | 500XL |
| 1955-1969 | Ford | Fairlane | Base |
| 1978-1982 | Ford | Fairmont | Base |
| 1978-1983 | Ford | Fairmont | Futura |
| 1981,1983 | Ford | Fairmont | S |
| 1960-1970 | Ford | Falcon | Base |
| 1962 | Ford | Falcon | Deluxe |
| 1963-1970 | Ford | Falcon | Futura |
| 1963-1965 | Ford | Falcon | Futura Sprint |
| 1961-1965 | Ford | Falcon Sedan Delivery | Base |
| 1959-1967 | Ford | Galaxie | Base |
| 1961 | Ford | Galaxie | Club Victoria |
| 1960 | Ford | Galaxie | Special |
| 1961 | Ford | Galaxie | Starliner |
| 1961 | Ford | Galaxie | Sunliner |
| 1961 | Ford | Galaxie | Town Victoria |
| 1968-1974 | Ford | Galaxie 500 | Base |
| 1968-1970 | Ford | Galaxie 500 | XL |
| 1972-1974 | Ford | Gran Torino | Base |
| 1973-1974 | Ford | Gran Torino | Brougham |
| 1974 | Ford | Gran Torino | Elite |
| 1972-1974 | Ford | Gran Torino | Sport |
| 1972-1974 | Ford | Gran Torino | Squire |
| 1975-1980 | Ford | Granada | Base |
| 1978-1980 | Ford | Granada | ESS |
| 1975-1980 | Ford | Granada | Ghia |
| 1981-1982 | Ford | Granada | GL |
| 1981-1982 | Ford | Granada | GLX |
| 1981-1982 | Ford | Granada | L |
| 1965-1974,1983 | Ford | LTD | Base |
| 1970-1974,1983 | Ford | LTD | Brougham |
| 1971,1973 | Ford | M-400 | Base |
| 1974 | Ford | M-450 | Base |
| 1955-1956 | Ford | Mainline | Base |
| 1970-1977 | Ford | Maverick | Base |
| 1975-1977 | Ford | Maverick | Grabber |
| 1964-1973,1979-1981 | Ford | Mustang | Base |
| 1970-1971 | Ford | Mustang | Boss 302 |
| 1979-1981 | Ford | Mustang | Ghia |
| 1982 | Ford | Mustang | GL |
| 1982 | Ford | Mustang | GLX |
| 1970-1973 | Ford | Mustang | Grande |
| 1982 | Ford | Mustang | L |
| 1970-1973 | Ford | Mustang | Mach 1 |
| 1965-1970 | Ford | Mustang | Shelby GT-350 |
| 1966 | Ford | Mustang | Shelby GT-350H |
| 1968-1970 | Ford | Mustang | Shelby GT-500 |
| 1968 | Ford | Mustang | Shelby GT-500KR |
| 1965-1966 | Ford | P-100 | Base |
| 1965-1974,1976 | Ford | P-350 | Base |
| 1975 | Ford | P-350 | Custom |
| 1975-1976 | Ford | P-400 | Base |
| 1975-1976 | Ford | P-400 | Custom |
| 1975-1977 | Ford | P-500 | Base |
| 1975-1977 | Ford | P-500 | Custom |
| 1956 | Ford | Park Lane Wagon | Base |
| 1971-1974 | Ford | Pinto | Base |
| 1955-1974 | Ford | Ranch Wagon | Base |
| 1970 | Ford | Ranch Wagon | Police Cruiser |
| 1967-1974 | Ford | Ranchero | 500 |
| 1967 | Ford | Ranchero | 500 XL |
| 1957-1971 | Ford | Ranchero | Base |
| 1966 | Ford | Ranchero | Custom |
| 1968-1974 | Ford | Ranchero | GT |
| 1970-1974 | Ford | Ranchero | Squire |
| 1955-1959 | Ford | Skyliner | Base |
| 1963-1964 | Ford | Sprint | Base |
| 1960 | Ford | Starliner | Base |
| 1955-1960 | Ford | Sunliner | Base |
| 1955-1973,1980-1982 | Ford | Thunderbird | Base |
| 1981-1982 | Ford | Thunderbird | Heritage |
| 1980 | Ford | Thunderbird | Silver Anniversary |
| 1980-1982 | Ford | Thunderbird | Town Landau |
| 1971 | Ford | Torino | 500 |
| 1968-1974 | Ford | Torino | Base |
| 1970-1971 | Ford | Torino | Brougham |
| 1969-1971 | Ford | Torino | Cobra |
| 1968-1971 | Ford | Torino | GT |
| 1969-1971 | Ford | Torino | Squire |
| 1970-1971 | Ford | Torino | Super Cobra Jet |
| 1955-1960 | Ford | Victoria | Base |
| 1952-1959 | Lincoln | Capri | Base |
| 1958-1972 | Lincoln | Continental | Base |