NGK BR6ES Spark Plug – Stock No. 4922
The NGK BR6ES is a reliable copper-core, nickel-tipped spark plug for everyday performance and easy starting. It uses a resistor to reduce radio interference and protect sensitive electronics. It suits many classic petrol engines and small-capacity motorcycles that require a 14 mm, gasket-seat plug with 19 mm reach and NGK heat range 6.
This plug helps maintain stable combustion, smooth idle, and consistent throttle response. It is a solid, cost-effective choice for standard and mildly tuned engines.
Always match thread size, reach, seat type, and heat range to your engine. Set the gap to your vehicle’s spec.
Key Benefits
- Stable spark for smooth running and easy starts
- Copper core aids heat transfer for reliable performance
- Resistor design reduces electrical noise
| Part Number | BR6ES |
| NGK Stock Number | 4922 |
| GTIN | 087295149225 |
| Category | 686 – Spark Plug |
| Thread Diameter | 14 mm |
| Thread Reach | 19 mm (3/4 in) |
| Hex Size | 21 mm (13/16 in) |
| Seat Type | Gasket |
| Heat Range (NGK) | 6 |
| Resistor | Yes |
| Centre Electrode | Copper core, nickel alloy tip |
| Ground Electrode | Standard single ground |
| Projected Tip | No |
| Terminal Type | Solid terminal |
| Factory Gap | Typically 0.7 – 0.8 mm (adjust to spec) |
Fitment Guidance
Use the site’s vehicle lookup to confirm fitment, or check the Vehicle Fitment tab for full details. Ensure the plug’s size, reach, seat, and heat range match your engine’s requirements.
The price displayed is for a single plug, please add the desired amount to your basket.


