NGK PFR6U-11G Laser Platinum Spark Plug (Stock No. 5874)
The NGK PFR6U-11G is a long-life, Laser Platinum spark plug designed for reliable ignition and smooth running. It uses a fine platinum centre electrode and a platinum-tipped ground electrode to maintain a strong spark over a long service interval.
Platinum resists wear, so the gap stays stable. This helps cold starts, idle quality and throttle response, especially on tuned or high-mileage engines.
Use the site’s vehicle lookup or see the Vehicle Fitment tab to confirm compatibility for your car.
| Part Number | PFR6U-11G |
| NGK Stock Number | 5874 |
| GTIN | 087295158746 |
| Category | 686 – Spark Plug |
| Thread Diameter | 14 mm |
| Thread Reach | 19 mm |
| Hex Size | 16 mm |
| Seat Type | Gasket |
| Heat Range | 6 (NGK scale) |
| Resistor | Yes |
| Centre Electrode | Laser Platinum fine wire |
| Ground Electrode | Platinum pad, U-groove |
| Factory Gap | 1.1 mm (-11) |
- Strong, consistent spark for clean combustion and smooth idle.
- Long service life thanks to dual-platinum design.
- Stable gap helps reduce misfires under load and at high RPM.
- Built-in resistor reduces electrical noise for reliable ECU signals.
Note: Supplied pre-gapped at 1.1 mm. Check gap and torque to your vehicle manufacturer’s specification. Use the vehicle lookup to confirm fitment.
The price displayed is for a single plug, please add the desired amount to your basket.


