IRIDIUM POWER Spark Plugs IW24 (6-pack) for Porsche 356 / 911 / 964 Turbo / 924

Ultrafine Electrode By harnessing the power of Iridium, DENSO has been able to reduce the surface area of the center electrode – the critical component of a spark plug. Unlike a typical platinum spark plug with a 1.1 mm diameter center electrode, DENSO Iridium Power spark plugs have the world's smallest center electrode with a diameter of 0.4 mm. This means that voltage requirements are reduced and ignition performance is significantly improved. Manufacturer: Denso.

• Porsche 924 (1979–1981)
• Porsche 924 Carrera GT (1955–1959)
• Porsche 924 Turbo (1979–1981)

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