8 NGK Spark Plugs – For Mariner 200 1997-1999 Outboard Motor

The NGK spark plug is a critical ignition component designed to initiate the combustion process within the cylinders of a 1997-1999 Mariner 200 outboard motor. In high-performance marine engines, the spark plug must withstand extreme thermal cycling and high-pressure environments while maintaining a consistent electrical arc to ignite the compressed air-fuel mixture. The plug functions as a heat-transfer device, drawing heat away from the combustion chamber and dissipating it through the cylinder head, a process governed by the plug’s “heat range.”