HRC Spark Plugs NGK R0451J-10

HRC Racing Spark Plug (31911-NLT-000 / NGK R0451J-10)

The HRC Racing Spark Plug is a genuine Honda Racing Corporation component developed for maximum performance in high-RPM competition engines. Manufactured by NGK as the R0451J-10, this racing-grade spark plug delivers exceptional ignition reliability, improved combustion efficiency, and consistent performance under extreme track conditions. Ideal for HRC-equipped race bikes and serious competition applications where every horsepower counts.

• The spark plugs improve output by 0.4% and drivability throughout the RPM range over 6000 RPM compared to ones fitted as standard.
• SOLD EACH OR AS SET OF 4.

IMPORTANT PURCHASING INFORMATION

• Valid race license required for purchase.
• Race license must be emailed to CJRPerformanceLLC@gmail.com following checkout for race-use verification.
• Customers must complete the HRC Parts Customer Order Form prior to order approval:
  https://cameronjonesracing.com/pages/hrc-parts-customer-order-form
• Orders will not be processed until all required documentation has been received and verified.
• Please allow 1-3 business days for order review and processing. Special-order HRC components may require additional lead time.
• HRC parts are intended for closed-course competition use only and are not eligible for return once installed, modified, or used.
• Availability of HRC parts is subject to Honda Racing Corporation inventory and may change without notice.

COMPETITION USE ONLY

HRC Racing components are designed and manufactured exclusively for competition motorcycles. These products are not intended for use on public roads, highways, or other public lands and are not covered by any Honda motorcycle warranty program unless otherwise specified by Honda Racing Corporation.

All specifications, pricing, and availability are subject to change without notice.

CALIFORNIA EMISSIONS DISCLAIMER

LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES WHICH MAY NEVER BE USED, REGISTERED, OR LICENSED FOR USE UPON A HIGHWAY.

This product is legal for closed-course competition use only and is intended solely for racing vehicles not operated on public highways. This product does not conform to U.S. EPA or California CARB emissions requirements for highway vehicles and may not be used on pollution-controlled vehicles operated on public roads.

PROPOSITION 65 WARNING

WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov