NGK ES racing plugs are available in 8, 9 & 10 heat ranges. The pure alumina silicate ceramic insulator nose is designed for heat transfer and strength. The corrugated ribs prevent flashover and the copper core aids in heat removal.
- thread size 14mm, thread pitch 1.25mm
- reach 19mm
- gap 0.8mm
- centre electrode 2.5mm fine wire nickel non-projected