NGK R5671A-9 Racing Plug

*Image for representation purposes, and may not be 100% Accurate to product*

Thread x Hex x Reach

14mm x 16mm x 19mm

The NGK Racing Spark Plug is designed to withstand severe mechanical and thermal shock associated with these high-revving, high-compression race engines.

NGK Racing Spark Plugs feature precious metals such as platinum or gold/palladium for greater durability and lower voltage requirements. To withstand the severe conditions that occur in racing engines,

NGK Racing Spark Plugs feature electrode materials and configurations as follows:

• Electrode materials - Many use precious metals such as platinum or gold/palladium for greater durability and lower voltage requirements.
• Electrode configurations - Fine-wire center electrodes provide better sparking and enhanced ignitability. Fine-wire ground electrodes further improve the ignitability of the plug.
• Insulator configurations - Special configurations are used for the insulator noses to improve throttle response.