NGK Laser Iridium Spark Plug Box of 4 (IMR8C-9H)

The Iridium alloy in the center electrode has an extremely high melting point, which is key for today's high-tech engines. These NGK Laser Iridium spark plugs are built to last, offering a combination of performance and longevity. They are designed as an OE equivalent replacement, meaning they meet the same standards as the original plugs your Honda CRF250X came with.

The pure alumina silicate ceramic insulator helps with heat transfer and provides superior strength, while the trivalent metal plating on the exterior helps prevent corrosion and seizing. For vehicles with distributorless ignition systems, most Laser Iridium plugs also feature a platinum pad on the ground electrode for even wear. The fine wire center electrode ensures a consistently stable spark, which is important for reliable starts and smooth running.

This set includes four spark plugs, as your CRF250X uses four. The copper core aids in removing heat from the combustion chamber, and triple seals are used to prevent any leakage. If your vehicle originally came with fine wire iridium alloy plugs, these are a direct replacement.