Ngkr5724 - Ngk Spark Plug

NGK R5724-8 - 14mm - 5/8" Hex - Tapered - .708 Reach - (602/604 Crate)

All 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.