SKU:
Osculati-47.558.21
€ 14,87
1-2 weeks delivery time
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High-performance NGK BPZ8HN-10 spark plug (Osculati 47.558.21) designed for optimal combustion and long service life in outboard engines. Commonly used on Yamaha, Mercury, Mariner, Suzuki, Tohatsu, Selva, and Honda motors. Cross-compatible with Champion QL78YC. Thread size: M14 × 1.25 mm, reach: 19 mm, hex size: 20.8 mm, gap: 1.0 mm. Ideal for 2-stroke and 4-stroke marine engines.
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Osculati 47.558.21 – NGK BPZ8HN-10 Marine Spark Plug
The NGK BPZ8HN-10 (Osculati 47.558.21) is a high-performance spark plug engineered for marine outboard engines. Designed to deliver reliable ignition, superior anti-fouling performance, and excellent heat dissipation, it ensures smooth operation even in demanding marine conditions. The plug features a solid copper core, triple-sealed insulator, and a nickel alloy electrode to resist corrosion and wear.
Key Features:
- High ignitability and improved throttle response
- Resistor-type spark plug with suppressed electromagnetic interference
- Corrosion-resistant materials for marine environment
- 1.0 mm preset spark gap for optimal combustion
- Compatible with a wide range of outboard motors
Technical Specifications:
Attribute Value Model NGK BPZ8HN-10 Osculati Code 47.558.21 Thread Size M14 × 1.25 mm Hex Size 20.8 mm Reach 19 mm Heat Range 8 Gap 1.0 mm Electrode Material Nickel Alloy Resistor Yes
Manufacturer Compatibility:
- Yamaha
- Mercury
- Mariner
- Suzuki
- Tohatsu
- Selva
- Honda
Cross Reference:
Brand Model NGK BPZ8HN-10 Champion QL78YC
This spark plug is a reliable OEM-grade replacement, trusted by professional marine mechanics for both 2-stroke and 4-stroke applications. Its build quality and thermal performance ensure stable engine operation in saltwater and freshwater environments alike.
Documents
Osculati Catalogue 2025 - page 874 Size: 150,5 Kb -
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