NGK BCPR5ES-11 Spark Plug (Stock No. 3524)
A reliable copper-core spark plug for everyday driving and mild performance use. It delivers consistent ignition, smooth idle, and good fuel burn. The projected tip helps cold starts and throttle response. The built-in resistor reduces electrical noise that can affect the ECU and radio.
- Stable spark and strong cold-start performance
- Durable nickel alloy with copper core for good heat transfer
- Projected tip design for cleaner combustion
| Part number | BCPR5ES-11 |
| NGK stock number | 3524 |
| Category | 686 – Spark Plug |
| GTIN | 087295135242 |
| Thread diameter | 14 mm |
| Thread pitch | 1.25 mm |
| Thread reach | 19 mm (E) |
| Hex size | 20.8 mm (13/16 in) |
| Seat type | Gasket seat (with crush washer) |
| Heat range | 5 (NGK scale) |
| Firing end | Projected insulator tip (P), standard ground strap (J-type) |
| Resistor | Yes, approx. 5 k? (R) |
| Centre electrode | Copper core, nickel alloy (S) |
| Factory gap | 1.1 mm (-11) |
| Terminal | Fixed SAE terminal |
| Typical applications | Petrol engines requiring 14 mm x 1.25, 19 mm reach, gasket seat, projected tip |
Fitment guidance
Common on many older Japanese petrol engines and small-capacity European units that specify a 14 mm, 19 mm reach gasket-seat plug with a projected tip and 1.1 mm gap. Use the vehicle lookup to confirm fitment or check the Vehicle Fitment tab for full details.
Note: Always set the gap and torque to the vehicle manufacturer’s specification.
The price displayed is for a single plug, please add the desired amount to your basket.


