Bolt spark with nickel electrode from manufacturer NGK.
Product description:
- spark plug JR8C from NGK;
- key opening: 18mm;
- thread length: 19mm;
- spark plug: 2-electrode ground, with flat sealing seat, nickel electrode;
- thread size: M12x1.25mm;
- with resistor: yes;
- resistor value: 5KOhm;
- gap between electrodes: 0.7mm;
- coupling technique: M4;
- NGK code: 5139.
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