NGK PFR6B Laser Platinum Spark Plug – Stock No. 3500
The NGK PFR6B is a premium Laser Platinum spark plug designed for stable ignition, long service life, and consistent performance. It uses a fine platinum centre electrode and a platinum-tipped ground electrode for a strong, clean spark with less voltage demand. This helps cold starts, smooth idle, and reliable performance under load.
The built-in resistor helps reduce electrical noise that can affect sensors and the radio. The projected tip improves flame kernel growth for better combustion. It is a solid upgrade over standard copper plugs, especially for engines that see regular motorway use or spirited driving.
Use our vehicle lookup to confirm fitment, or check the Vehicle Fitment tab for full details.
| Manufacturer | NGK |
|---|---|
| Part Number | PFR6B |
| NGK Stock Number | 3500 |
| Part Category | 686 – Spark Plug |
| GTIN | 087295135006 |
| Plug Type | Laser Platinum |
| Heat Range (NGK) | 6 |
| Resistor | Yes |
| Thread Diameter | M14 x 1.25 |
| Thread Reach | 19 mm |
| Seat Type | Gasket |
| Hex Size | 16 mm |
| Gap | 0.8 mm (factory set – check OE spec) |
| Centre Electrode | Platinum fine tip |
| Ground Electrode | Platinum pad |
| Projection | Projected tip |
| Terminal | Solid terminal nut |
- Sharper, more reliable spark for smoother running and better throttle response.
- Platinum-on-platinum design for long life and stable performance over many heat cycles.
- Resistor construction reduces electrical interference with ECU and audio systems.
Tip: Always install to the manufacturer’s torque spec and verify the gap requested by your engine.
The price displayed is for a single plug, please add the desired amount to your basket.


