NGK BPR5FS-11 Spark Plug (Stock No. 2924)
This NGK spark plug is built for reliable cold starts, smooth idle, and consistent combustion. It uses a projected, resistor design to improve ignition quality and reduce electrical noise that can affect the ECU and radio. The -11 suffix means it comes pre-gapped to 1.1 mm.
It suits many petrol engines that use a 14 mm thread, gasket seat, and short-reach plug. Always confirm fitment with the vehicle lookup on our site or check the Vehicle Fitment tab.
- Improves throttle response and starting, especially on older or high-mileage engines.
- Resistor design helps protect electronics by cutting radio frequency interference.
| Part Category | 686 – Spark Plug |
| Part Number | BPR5FS-11 |
| NGK Stock Number | 2924 |
| GTIN | 087295129241 |
| Thread Diameter | 14 mm |
| Thread Reach | Approx. 11.2 mm (short reach – F type) |
| Seat Type | Flat seat with gasket |
| Hex Size | 20.8 mm (13/16 in) |
| Heat Range | NGK 5 (medium-hot) |
| Resistor | Yes (R) |
| Insulator Projection | Projected tip (P) |
| Factory Gap | 1.1 mm (-11) |
| Centre Electrode | Nickel alloy with copper core |
Installation Notes
– Check and adjust the gap to your engine spec if needed. Factory gaps can shift in transit.
– Fit to a clean, cold engine and torque to the manufacturer’s setting.
– Replace as a set for even performance across cylinders.
The price displayed is for a single plug, please add the desired amount to your basket.

