NGK R6918C-9 5196 Spark Plug Racing R6918C9

The NGK R6918C-9 is a discontinued spark plug that is no longer manufactured. Where a current equivalent exists it is shown in the alternatives below.NGK Laser Platinum is an original-equipment long-life plug with platinum on both the centre and ground electrodes. Platinum's high melting point and resistance to erosion mean the gap barely grows over the service interval, so the plug keeps its factory ignition performance until the scheduled change. Designed to be fitted as the direct replacement where the manufacturer specifies this part number, especially on engines with distributorless or waste-spark ignition where the ground electrode wears as fast as the centre.