Osculati 47.558.26 – NGK BPR6EFS Marine Spark Plug
The NGK BPR6EFS (Osculati 47.558.26) is a high-quality resistor-type marine spark plug designed for modern 2-stroke and 4-stroke outboard engines. Its projected insulator nose helps resist fouling, while the integrated resistor eliminates radio frequency interference with electronic equipment. Built with a solid copper core and durable nickel alloy electrode, the plug ensures consistent ignition in marine environments.
Key Features:
- Built-in resistor for RFI suppression
- Projected insulator nose for enhanced anti-fouling characteristics
- Nickel alloy electrode for corrosion resistance
- Designed for quick cold starting and steady combustion
- OEM fitment for a wide range of outboards
Technical Specifications:
| Attribute | Value |
|---|---|
| Model | NGK BPR6EFS |
| Osculati Code | 47.558.26 |
| 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 | BPR6EFS |
| Champion | RS12YC |
This spark plug is ideal for boat owners and marine technicians requiring dependable ignition, especially in saltwater environments. Its extended insulator design makes it suitable for applications where cold fouling may be an issue, while the resistor ensures compatibility with sensitive marine electronics.
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