NGK BP8ES Spark Plug – Stock No. 2912
The NGK BP8ES is a cold heat range, projected-nose spark plug designed for consistent ignition under high load and high temperature. It suits engines that specify a 14 mm thread, 19 mm reach plug with a gasket seat and a standard nickel electrode.
It is a good choice for tuned or hard-worked engines that need a colder plug to help prevent knock and reduce the risk of pre-ignition. The projected insulator improves flame kernel growth for cleaner combustion and better throttle response.
| Part number | BP8ES |
| NGK stock number | 2912 |
| GTIN | 087295129128 |
| Category | 686 – Spark Plug |
| Thread diameter | 14 mm |
| Thread reach | 19 mm |
| Hex size | 20.8 mm (13/16 in) |
| Seat type | Flat seat with gasket |
| Heat range | 8 (cold) |
| Resistor | No |
| Insulator design | Projected nose |
| Centre electrode | Nickel alloy, copper core |
| Ground electrode | Standard J-type |
| Gap | Typically 0.7-0.8 mm – set to vehicle spec |
| Terminal | Removable nut (stud beneath) – check cap type |
Why choose BP8ES
- Cold heat range handles higher temperatures in tuned or hard-driven engines.
- Projected tip helps reliable ignition and reduces fouling in everyday use.
- Durable nickel electrode for long service life with stable spark.
Fitment guidance
– Commonly specified for many classic motorcycles and older performance engines that require a 14 mm, 19 mm reach, gasket-seat plug with a cold heat range.
– Use our vehicle lookup to confirm fitment, or see the Vehicle Fitment tab for full details.
Important: Always set the spark plug gap to the engine manufacturer’s specification and tighten to the correct torque to avoid damage.
The price displayed is for a single plug, please add the desired amount to your basket.


