NGK MAR8B-JDS Spark Plug – Stock No. 8765
The NGK MAR8B-JDS is a high-quality spark plug designed for strong ignition and stable performance under heat and load. It delivers a clean, consistent spark to help your engine start quickly, idle smoothly, and pull hard through the rev range.
Built with NGK’s precise heat control and a resistor core to reduce electrical noise, it helps prevent misfires and keeps ECU signals clean. The fine-wire centre electrode focuses the spark for reliable combustion, even in demanding, high-compression engines.
Use it as a performance-focused replacement when you want dependable firing, good throttle response, and long service life without fuss.
- Reliable ignition under high heat and pressure
- Resistor design reduces electrical interference
- Fine-wire centre electrode for a strong, efficient spark
| Part Number | MAR8B-JDS |
|---|---|
| NGK Stock Number | 8765 |
| Category | 686 – Spark Plug |
| GTIN | 87295187654 |
| Heat Range | 8 (NGK scale) |
| Resistor | Yes (R) |
| Electrode Design | Fine-wire centre electrode |
| Gap | Factory set – do not adjust unless specified by the manufacturer |
| Terminal | Fixed terminal nut |
| Seat Type | Tapered seat (application dependent) |
| Pack Size | 1 plug |
Important: Always match heat range and plug design to your engine. Check the Vehicle Fitment tab or use our vehicle lookup to confirm this is correct for your application.
The price displayed is for a single plug, please add the desired amount to your basket.


