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 |
|---|---|---|---|
| 1994-1997 | Cobra | BM50 | Base |
| 1997-2000 | Cobra | CM50 | Base |
| 1997 | Cobra | KING | Base |
| 1967-1968 | Kawasaki | A7 Avenger | Base |
| 1967-1968 | Kawasaki | A7SS | Base |
| 1973-1975 | Kawasaki | F11 | Base |
| 1971-1975 | Kawasaki | F7 | Base |
| 1970-1971 | Kawasaki | G31M | Base |
| 1972-1975 | Kawasaki | H1 Mach III | Base |
| 1972-1975 | Kawasaki | H2 Mach IV | Base |
| 1976-1979 | Kawasaki | KD175 | Base |
| 1976 | Kawasaki | KH250 | Base |
| 1976 | Kawasaki | KH500 | Base |
| 1974 | Kawasaki | KX450 | Base |
| 1973 | Kawasaki | S1 Mach I | Base |
| 1972-1973 | Kawasaki | S2 Mach II | Base |
| 1981-1983 | Maico | 250 | Base |
| 1978-1979 | Maico | 250 Enduro | Base |
| 1981-1983 | Maico | 400 | Base |
| 1978-1979 | Moto-Ski | Nuvik | Base |
| 1978 | Ski-Doo | Citation 300 | Base |
| 1978-1979 | Ski-Doo | Everest 340 | Base |
| 1978-1979 | Ski-Doo | Everest 340E | Base |
| 1978 | Ski-Doo | Olympique 300T | Base |
| 1978 | Ski-Doo | Olympique 340 | Base |
| 1978 | Ski-Doo | Olympique 340E | Base |
| 1973 | Ski-Doo | TNT 340 | Base |
| 1972 | Yamaha | CS5 | Base |