Product · United States

1pcs Original NGK Iridium Spark Plug CR9EIX 3521 For NInja 400/R GSX R750 Upgrade CR9E CR9EK etc

Product no longer available. The stores we track no longer sell it; last price seen $13.38.

Price history: 5 daily prices tracked since 2026-10-19; lowest $13.35, highest $13.38.

1pcs Original NGK Iridium Spark Plug CR9EIX 3521 For NInja 400/R GSX R750 Upgrade CR9E CR9EK etc

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