NGK BPR6EY Spark Plug – Stock No. 6427
The NGK BPR6EY is a reliable, everyday performance spark plug with a projected tip and built-in resistor. It offers clean ignition, stable idle, and dependable starts. The Y-type ground electrode helps the spark form easily, improving combustion under light and heavy load.
Use it as a quality replacement when your engine calls for a 14 mm thread, 19 mm reach, gasket seat, projected tip, resistor plug in NGK heat range 6. It suits many petrol engines of this type. Use the vehicle lookup to confirm fitment, or check the Vehicle Fitment tab.
- Clean, consistent spark for smoother running and better throttle response
- Resistor design reduces electrical noise that can affect radios and ECUs
| Part number | NGK BPR6EY |
| NGK stock number | 6427 |
| GTIN | 087295164273 |
| Category | 686 – Spark Plug |
| Thread diameter | 14 mm |
| Thread reach | 19.0 mm |
| Hex size | 20.8 mm (13/16 in) |
| Seat type | Flat gasket |
| Projected tip | Yes (P) |
| Resistor | Yes (R) |
| Heat range | 6 (NGK scale) |
| Electrode design | Single ground, Y-type for easier sparking |
| Core/electrodes | Copper core with nickel alloy electrodes |
| Gap | Pre-gapped – check and set to the vehicle specification |
Tip: Always check and set the plug gap and torque to your vehicle’s specification for best results.
The price displayed is for a single plug, please add the desired amount to your basket.


