หัวเทียน NGK Nickel Surface Gap Plug

| ชนิดหัวเทียน : | Nickel Surface Gap Plug |
| Thread Size : | 14 mm |
| Thread Pitch : | 1.25 mm |
| Resistor : | Yes (5K Ohm) |
| Reach : | 19 mm (3/4") |
| Hex Size : | 21 mm |
| Gap : | 1.4 mm |
| Torque Specs : | Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft. |
| Center Electrode : | Nickel 2.5mm , non-projected |


















