NGK BKR6ES Spark Plug – Stock No. 3783
The NGK BKR6ES is a reliable, OE-quality spark plug for everyday driving and mild performance use. It delivers a clean, consistent spark to help your engine start easily, idle smoothly, and run efficiently.
This plug uses a copper core with a nickel alloy tip. It manages heat well and resists fouling in normal road use. It is a solid choice for standard engines and light tuning where durability and value matter.
- Stable ignition for smooth starts and steady idle
- Good heat control to reduce fouling and misfires
- Proven NGK build quality for long service life
Always check and set the gap to your vehicle’s specification. Use the site’s vehicle lookup or the Vehicle Fitment tab to confirm it suits your engine.
Technical Specifications
| Part Number | BKR6ES |
| NGK Stock Number | 3783 |
| GTIN | 087295137833 |
| Category | 686 – Spark Plug |
| Thread Diameter | 14 mm |
| Thread Pitch | 1.25 |
| Reach (Thread Length) | 19 mm |
| Hex Size | 16 mm |
| Seat Type | Flat seat with gasket |
| Resistor | Yes |
| Heat Range | 6 (NGK scale) |
| Centre Electrode | Copper core, nickel alloy tip |
| Ground Electrode | Standard single ground |
| Factory Gap | 0.8 mm (adjust as required) |
| Terminal | Standard terminal nut |
Fitment Guidance
Fits many petrol engines that use M14 x 1.25 gasket-seat plugs with 19 mm reach and 16 mm hex. Specifications must match your engine. Use the vehicle lookup to confirm, or see the Vehicle Fitment tab for full details.
The price displayed is for a single plug, please add the desired amount to your basket.


