Osculati 47.558.34 – NGK BPR6ES Marine Spark Plug
The NGK BPR6ES (Osculati 47.558.34) spark plug is engineered for marine engines requiring consistent spark delivery, corrosion resistance, and long-lasting ignition performance. With a projected insulator tip and resistor core, it minimizes the risk of fouling and electromagnetic interference, making it suitable for modern electronic marine ignition systems.
Key Features:
- Built-in resistor for reduced radio frequency interference (RFI)
- Nickel alloy electrodes provide high durability in marine environments
- Projected tip insulator improves cold start and burn characteristics
- Standard 14 mm thread with long 19 mm reach
- OEM-level reliability for a wide range of 2-stroke and 4-stroke engines
Technical Specifications:
| Attribute | Value |
|---|---|
| Model | NGK BPR6ES |
| Osculati Code | 47.558.34 |
| Thread Diameter | M14 × 1.25 mm |
| Reach | 19 mm |
| Hex Size | 20.8 mm |
| Heat Range | 6 |
| Gap | 0.9 mm |
| Electrode Type | Standard with projected tip |
| Resistor | Yes |
Manufacturer Compatibility:
- Yamaha
- Mercury
- Mariner
- Suzuki
- Tohatsu
- Selva
- Honda
Cross Reference:
| Brand | Model |
|---|---|
| NGK | BPR6ES |
| Champion | RN9YC |
This spark plug is a trusted, long-service-life component used by boat owners and marine professionals alike. Its reliable performance, anti-fouling design, and EMI protection make it ideal for both recreational and professional marine applications.
