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NGK Iridium IX Spark Plug Box of 4 (BR7HIX)

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 their tapered cut ground electrode, NGK Iridium IX spark plugs offer improved starting, idling, and throttle response. The iridium fine wire center electrode is six times harder than platinum, ensuring exceptional durability.

  • Recommended for modified or high-performance applications
  • Upgrade to OE nickel alloy spark plugs
  • Extreme ignitability and exceptional anti-fouling

This product fits more vehicles than loaded. Please select your vehicle to see all fits.

Make Model Year Type
Honda EZ90 Cub 1991 Base
Honda EZ90 Cub 1992 Base
Honda EZ90 Cub 1993 Base
Honda EZ90 Cub 1994 Base
Honda EZ90 Cub 1995 Base
Honda EZ90 Cub 1996 Base
Subaru 360 1968 Base
Subaru 360 1968 Base
Subaru 360 1968 Base
Suzuki 292 Nomad 1974 Base
Suzuki 340 Nomad 1974 Base
Suzuki 340 Nomad 1974 Base
Suzuki DS185 1978 Base
Suzuki GT185 1973 Base
Suzuki GT185 1973 Base
Suzuki GT185 1973 Base
Suzuki GT185 1973 Base
Suzuki GT185 1973 Base
Suzuki GT500 1976 Base
Suzuki GT500 1976 Base
Suzuki RM50 1978 Base
Suzuki RM50 1978 Base
Suzuki RV125 1973 Base
Suzuki RV125 1973 Base
Suzuki RV125 1973 Base
Suzuki RV125 1973 Base
Suzuki RV125 1973 Base
Suzuki T250 1969 Base
Suzuki T250 1969 Base
Suzuki T250 1969 Base
Suzuki T250 1969 Base
Suzuki T350 1971 Base
Suzuki T350 1971 Base
Suzuki TC185 1974 Base
Suzuki TC185 1975 Base
Suzuki TC185 1976 Base
Suzuki TC185 1977 Base
Suzuki TM75 1974 Base
Suzuki TM75 1974 Base
Suzuki TM75 1974 Base
Suzuki TS185 1971 Base
Suzuki TS185 1972 Base
Suzuki TS185 1973 Base
Suzuki TS185 1974 Base
Suzuki TS185 1975 Base
Suzuki TS185 1976 Base
Suzuki TS185 1977 Base
Suzuki TS185 1978 Base
Suzuki TS185 1979 Base
Suzuki TS75 1975 Base
Suzuki TS75 1975 Base
Suzuki TS75 1975 Base
Suzuki XR400 1974 Base
Suzuki XR400 1974 Base
Suzuki XR440 1974 Base
Suzuki XR440 1974 Base
Yamaha CY50 Jog 1992 Base
Yamaha CY50 Jog 1992 Base
Yamaha CY50 Jog 1992 Base
Yamaha CY50 Jog 1992 Base
Yamaha CY50 Jog 1992 Base
Yamaha CY50 Jog 1992 Base
Yamaha CY50 Jog 1992 Base
Yamaha CY50 Jog 1992 Base
Yamaha CY50 Jog 1992 Base
Yamaha CY50 Jog 1992 Base
Yamaha DT80 1981 Base
Yamaha DT80 1981 Base
Yamaha DT80 1981 Base
Yamaha EL433 1973 Base
Yamaha EW433 1972 Base
Yamaha EW433 1972 Base
Yamaha G6S 1970 Base
Yamaha G6S 1970 Base
Yamaha G7S 1972 Base
Yamaha GP396 1971 Base
Yamaha GS340 1976 Base
Yamaha GS340 1976 Base
Yamaha GT1 1973 Base
Yamaha GT80 1976 Base
Yamaha GT80 1976 Base
Yamaha GT80 1976 Base
Yamaha GT80 1976 Base
Yamaha GT80 1976 Base
Yamaha GTMX 1973 Base
Yamaha GTMX 1973 Base
Yamaha GTMX 1973 Base
Yamaha GTMX 1973 Base
Yamaha GTMX 1973 Base
Yamaha GTMX 1973 Base
Yamaha GTMX 1973 Base
Yamaha JT1 1971 Base
Yamaha JT1L 1971 Base
Yamaha JT2 1972 Base
Yamaha JT2MX 1972 Base
Yamaha LS2 1972 Base
Yamaha MX80 1980 Base
Yamaha MX80 1981 Base
Yamaha MX80 1982 Base
Yamaha RA700 WaveRaider 1997 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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