NGK Racing Series plugs are engineered to withstand the harshest engine conditions.
- Fine wire center and ground electrodes provide enhanced ignitability
- Gold palladium center electrode and platinum tipped ground 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
- MPN: R6252K-105
Specifications
| Warranty |
1 Year |
| Torque Specs |
Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft. |
| Brand |
NGK |
| Heat Range |
10.5 |
| Longevity |
30k Miles |
| Resistor |
Yes |
Shell
| Thread Size |
14mm |
| Thread Pitch |
1.25mm |
| Seat Type |
Gasket |
| Resistor Value |
5K Ohm |
| Reach |
19mm (3/4") |
| Hex Size |
13/16" (21mm) |
| Terminal Type |
Solid |
| Overall Height |
ISO |
| Gap |
.031" (0.8mm) |
Center Electrode
| Material |
Nickel |
| Type |
Standard |
| Size |
2.5mm |
| Projection |
Non-Projected |
Ground Electrode
| Material |
Nickel |
| Type |
Slant |
| Quantity |
1 |
