The NGK 5238 Racing Plug (R5671A-9) from the Racing Series is engineered to excel under the toughest engine conditions, making it ideal for high-performance applications. It features special insulator nose configurations that enhance throttle response, ensuring quick and precise engine performance. Corrugated ribs on the plug prevent flashover, maintaining reliable spark ignition throughout demanding races. The pure alumina silicate ceramic insulator provides exceptional strength and facilitates efficient heat transfer, crucial for maintaining optimal operating temperatures during intense competition. A copper core further aids in heat dissipation, contributing to enhanced engine performance and reliability. Triple seals ensure a secure fit and prevent leakage, offering durability under extreme racing conditions. The NGK 5238 Racing Plug is the choice for motorsports enthusiasts seeking superior ignition performance and endurance.

Part number: R5671A-9