NGK Spark Plug Racing - R5673-10 FD642 The internal switching design utilises

The internal switching design utilises the high beam circuit to trigger

improving fuel economy and horsepower

Nulon SYN75W90 is formulated from hydrofinished base oils with superior additive packages to enhance wear protection

without transferring to your finger

with reinforced stitching for long-lasting durability

NGK Spark Plug Racing - R5673-10 FD642 The internal switching design utilisesNGK Racing Series Spark Plug NGK Racing Series plugs are engineered to withstand the harshest engine conditions. Special insulator nose configurations improve throttle response. Corrugated ribs prevent flashover. Pure alumina silicate ceramic insulator provides superior strength and better heat transfer. Copper core aids in heat removal. Triple seals prevent leakage. Product Specifications Shell Thread Diameter 14mm Thread Pitch 1. 25mm Seat Type