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NGK Premium RX Spark Plugs

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Quick Overview

NGK RX PREMIUM are the extended version of the NGK IRIDIUM MAX.


These series combine a Ruthenium center electrode of 0.6mm diameter with a ground electrode whose design has been completely revised.
The ground electrode has the particularity to integrate a platinum extension that aims to greatly improve the electrical conductivity and the combustion quality while ensuring an extremely reduced electrode wear.
These spark plugs also feature a brass terminal nut with very low impedance (Ohm), in the same way as Iridium Racing series (IRI-Series NGK and most IRIDIUM MAX).
RX PREMIUM spark plugs insulator has been also completely revised to provide greater heat dissipation and leave more space for the propagation of combustion.


Price Includes (1) Spark Plug

Availability: In stock

$23.75

Estimated Shipping Date
6/28/2017 - 7/10/2017