NGK Racing Spark Plug Box of 4 (R0451B-8)

NGK is known worldwide for powering racing champions, and their Racing Series spark plugs are built to handle the toughest conditions you can throw at them. If you're working on a 2010-2019 Honda CRF250R or CRF250RX, these plugs are designed to keep your engine running strong when it matters most.

The center electrode on these NGK Racing plugs features special designs to ensure they hold up and ignite reliably, even under extreme engine loads. They bring ultra-high performance across a variety of heat ranges, with special configurations tailored for different racing applications. The trivalent metal plating on the exterior helps prevent corrosion and seizing, making installation and removal much easier down the road. Plus, the pure alumina silicate ceramic insulator offers superior strength and helps transfer heat away from the plug effectively.

You'll get a box of four plugs, which is what you'll need for your CRF250R. The special insulator nose configurations can also contribute to improved throttle response, giving you a more connected feel to your machine.