NGK PFR6B-11 Laser Platinum Spark Plug (Stock No. 4014)
This NGK Laser Platinum spark plug offers reliable ignition, stable idle, and clean combustion. The fine platinum centre and ground pads resist wear, so performance stays consistent for longer. It suits everyday driving and light performance upgrades without harshness or fuss.
- Strong spark for smoother starts and better throttle response.
- Platinum pads reduce wear for long service life.
- Resistor design cuts electrical noise that can affect the ECU and audio.
Do not force the factory-set gap. Minor checks are fine, but heavy bending can damage the fine electrodes.
| Part number | NGK PFR6B-11 |
|---|---|
| NGK stock number | 4014 |
| GTIN | 087295140147 |
| Category | 686 – Spark Plug |
| Type | Laser Platinum, resistor |
| Heat range | 6 (NGK scale) |
| Thread diameter | 14 mm |
| Thread pitch | 1.25 |
| Reach (thread length) | 19 mm |
| Hex size | 16 mm |
| Seat type | Flat seat with gasket |
| Terminal | Solid SAE |
| Gap | 1.1 mm (factory set) |
| Centre electrode | Fine wire platinum |
| Ground electrode | Nickel with platinum pad |
| Resistor value | Approx. 5 k? |
| Recommended torque | 25-30 Nm for 14 mm gasket seat in aluminium heads |
| Typical service interval | Up to 60,000 miles, use dependent |
Fitment guidance
This plug design is used across various petrol engines where a 14 mm, 19 mm reach, gasket-seat, resistor platinum plug with 1.1 mm gap is specified. Always use the site’s vehicle lookup to confirm fitment, or check the Vehicle Fitment tab for full details.
The price displayed is for a single plug, please add the desired amount to your basket.


