IRI Series Iridium Spark Plug 7178 for 4-Wheeled Vehicles

[NGK IRITOP9 Iri-Series Iridium Spark Plug 7178 for 4-Wheeled Vehicles ngk iritop9-7178]
The Iri-Series spark plug is an iridium plug with excellent ignitability and acceleration, designed for high-heat-value tuning engines.
The insulator shape has been renewed with three bands in the corrugation, and the metal shell also uses corrosion-resistant plating.
Terminal shape: Punch crimp type
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