Article no.:
97382
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NGK Iridium IX Spark Plug Box of 4 (GR4IX)
Take your vehicle's performance to the next level with the NGK Iridium IX Spark Plug Box of 4. Designed for the performance enthusiast, these spark plugs provide outstanding acceleration, high fuel efficiency, and durability.
With its tapered cut ground electrode, the NGK Iridium IX Spark Plug offers improved starting, idling, and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum, making it perfect for today's engines.
- Extreme ignitability and exceptional anti-fouling
- Tapered cut ground electrode for improved starting, idling, and throttle response
- 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
This product fits more vehicles than loaded. Please select your vehicle to see all fits.
| Make | Model | Year | Type |
|---|---|---|---|
| American Motors | Ambassador | 1965 | 990 |
| American Motors | Ambassador | 1965 | Base |
| American Motors | Ambassador | 1966 | 990 |
| American Motors | Ambassador | 1966 | Base |
| American Motors | Ambassador | 1966 | DPL |
| American Motors | Ambassador | 1967 | 990 |
| American Motors | Ambassador | 1967 | Base |
| American Motors | Ambassador | 1967 | DPL |
| American Motors | Ambassador | 1968 | Base |
| American Motors | Ambassador | 1968 | DPL |
| American Motors | Ambassador | 1968 | SST |
| American Motors | Ambassador | 1969 | Base |
| American Motors | Ambassador | 1969 | DPL |
| American Motors | Ambassador | 1969 | SST |
| American Motors | Ambassador | 1970 | Base |
| American Motors | Ambassador | 1970 | DPL |
| American Motors | Ambassador | 1970 | SST |
| American Motors | Ambassador | 1971 | Brougham |
| American Motors | Ambassador | 1971 | DPL |
| American Motors | Ambassador | 1971 | SST |
| American Motors | Ambassador | 1972 | Brougham |
| American Motors | Ambassador | 1972 | SST |
| American Motors | Ambassador | 1973 | Brougham |
| American Motors | Ambassador | 1974 | Brougham |
| American Motors | American | 1964 | 440H |
| American Motors | American | 1964 | Base |
| American Motors | American | 1965 | 440 |
| American Motors | American | 1965 | Base |
| American Motors | American | 1966 | 440 |
| American Motors | American | 1966 | Base |
| American Motors | American | 1967 | 440 |
| American Motors | American | 1967 | Base |
| American Motors | American | 1967 | Rogue |
| American Motors | American | 1968 | 440 |
| American Motors | American | 1968 | Base |
| American Motors | American | 1968 | Rogue |
| American Motors | AMX | 1968 | Base |
| American Motors | AMX | 1969 | Base |
| American Motors | AMX | 1970 | Base |
| American Motors | AMX | 1978 | Base |
| American Motors | AMX | 1979 | Base |
| American Motors | Classic | 1964 | 770 |
| American Motors | Classic | 1964 | Base |
| American Motors | Classic | 1965 | 660 |
| American Motors | Classic | 1965 | 770 |
| American Motors | Classic | 1965 | Base |
| American Motors | Classic | 1966 | 770 |
| American Motors | Classic | 1966 | Base |
| American Motors | Concord | 1978 | Base |
| American Motors | Concord | 1979 | Base |
| American Motors | Concord | 1979 | DL |
| American Motors | Concord | 1979 | Limited |
| American Motors | Gremlin | 1970 | Base |
| American Motors | Gremlin | 1971 | Base |
| American Motors | Gremlin | 1972 | Base |
| American Motors | Gremlin | 1973 | Base |
| American Motors | Gremlin | 1974 | Base |
| American Motors | Gremlin | 1975 | Base |
| American Motors | Gremlin | 1976 | Base |
| American Motors | Gremlin | 1976 | Custom |
| American Motors | Gremlin | 1977 | Base |
| American Motors | Gremlin | 1977 | Custom |
| American Motors | Hornet | 1970 | Base |
| American Motors | Hornet | 1970 | SST |
| American Motors | Hornet | 1971 | Base |
| American Motors | Hornet | 1971 | SC/360 |
| American Motors | Hornet | 1971 | Sportabout |
| American Motors | Hornet | 1971 | SST |
| American Motors | Hornet | 1972 | Sportabout |
| American Motors | Hornet | 1972 | SST |
| American Motors | Hornet | 1973 | Base |
| American Motors | Hornet | 1973 | Sportabout |
| American Motors | Hornet | 1974 | Base |
| American Motors | Hornet | 1974 | Sportabout |
| American Motors | Hornet | 1975 | Base |
| American Motors | Hornet | 1975 | Sportabout |
| American Motors | Hornet | 1976 | Base |
| American Motors | Hornet | 1976 | Sportabout |
| American Motors | Hornet | 1977 | AMX |
| American Motors | Hornet | 1977 | Base |
| American Motors | Hornet | 1977 | Sportabout |
| American Motors | Javelin | 1968 | Base |
| American Motors | Javelin | 1968 | SST |
| American Motors | Javelin | 1969 | Base |
| American Motors | Javelin | 1969 | SST |
| American Motors | Javelin | 1970 | Base |
| American Motors | Javelin | 1970 | SST |
| American Motors | Javelin | 1970 | SST Mark Donohue |
| American Motors | Javelin | 1970 | SST Trans Am |
| American Motors | Javelin | 1971 | AMX |
| American Motors | Javelin | 1971 | Base |
| American Motors | Javelin | 1971 | SST |
| American Motors | Javelin | 1972 | AMX |
| American Motors | Javelin | 1972 | Base |
| American Motors | Javelin | 1972 | SST |
| American Motors | Javelin | 1973 | AMX |
| American Motors | Javelin | 1973 | Base |
| American Motors | Javelin | 1974 | AMX |
| American Motors | Javelin | 1974 | Base |
| American Motors | Marlin | 1965 | Base |
NGK manufactures spark plugs and spark plug wires, as well as glow plugs for diesel applications. Their range of spark plugs cover everything from OEM replacement to Ultimate Performance plugs, and are available as traditional copper, platinum, or iridium tips. NGK’s reputation as an OEM supplier for many car manufacturers makes them a top choice for spark plugs. Few brands can make that claim and have the quality to back it up.
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