NGK BPR6EKN Spark Plug – Dual Ground Electrode, Resistor (Stock No. 1128)
The NGK BPR6EKN is a durable copper-core spark plug with two ground electrodes. It gives a reliable spark, resists fouling, and offers longer service life in engines that specify a twin-ground design. The projected insulator helps cold starts and stable idle. The built-in resistor reduces radio interference and protects sensitive electronics.
Use this plug where the vehicle manufacturer specifies a 14 mm, 19 mm reach, gasket-seat, projected resistor plug with twin ground electrodes. Always confirm fitment with the vehicle lookup or the Vehicle Fitment tab.
- Consistent ignition under varied loads and temperatures
- Twin ground electrodes for longer life and stable performance
- Resistor design to minimise electrical noise
| Part Number | BPR6EKN |
| NGK Stock Number | 1128 |
| GTIN | 087295111284 |
| Category | 686 – Spark Plug |
| Thread Diameter | 14 mm |
| Thread Reach | 19 mm (E) |
| Hex Size | 20.8 mm (13/16 in) |
| Seat Type | Flat seat with gasket |
| Heat Range | 6 (NGK scale) |
| Resistance | Yes (R) |
| Insulator Projection | Projected tip (P) |
| Centre Electrode | Nickel alloy with copper core |
| Ground Electrodes | 2 (twin ground – K) |
| Factory Gap | Approx. 0.8 mm (check and set to vehicle spec) |
| Terminal | Solid post with detachable SAE nut |
| Tightening Torque | 20-30 Nm (14 mm gasket seat into aluminium head) |
| Tightening Angle (new gasket) | 1/2 – 2/3 turn after finger tight |
Note: Do not force-gap twin ground plugs. Minor adjustment is possible, but follow the vehicle specification. Always install on a cold engine and use a torque wrench.
The price displayed is for a single plug, please add the desired amount to your basket.


