IRIDIUM IX Iridium Spark Plugs 4558 for 4-Wheeled Vehicles

[NGK IRIWAY7 Iri Series Iridium Spark Plug 4558 for Four-Wheeled Vehicles ngk iriway7-4558]
The Iri Series spark plugs are iridium spark plugs designed for tuned engines requiring high heat ratings, offering excellent ignitability and acceleration.
The insulator shape has been renewed with three bands on the corrugation, and the metal shell has been plated for superior corrosion resistance.
Terminal shape: Punch-crimp type
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