NGK Racing Series Spark Plug
NGK Racing Series plugs are engineered to withstand the harshest engine conditions. Fine wire iridium tipped center electrode improves ignitability, increases durability and enhances anti-fouling capabilities. 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 | Gasket |
| Reach | 19mm (3/4") |
| Hex Size | 5/8" (16mm) |
| Terminal Type | Solid |
| Overall Height | JIS |
| Gap | .028" (0.7mm) |
| Center Electrode | |
| Material | Iridium |
| Type | Fine Wire |
| Size | 1.0mm |
| Projection | Projected |
| Ground Electrode | |
| Material | Nickel |
| Type | Standard |
| Shape | Taper Cut |
| Quantity | 1 |
| Specifications | |
| Resistor | Yes |
| Resistor Value | 5k Ohm |
| Heat Range | 8 |
| Torque Specs | Cast Iron: 18–25.3 lb. ft. / Aluminum: 18–21.6 lb. ft. |
| Part Information | |
| Brand | NGK/NTK |