SKU:
Osculati-47.558.75
€ 8,20
1-2 weeks delivery time
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NGK BR9ES (Osculati 47.558.75) is a cold-range, long-reach resistor spark plug with M14 × 1.25 mm thread, 19 mm reach, 20.8 mm hex, and factory-set 0.7 mm gap. Designed for high-RPM 2-stroke marine engines by Yamaha, Suzuki, Mercury, Tohatsu, Selva, Honda, and Mariner. The built-in resistor protects onboard electronics from EMI. No direct Champion equivalent.
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Osculati 47.558.75 – NGK BR9ES Marine Spark Plug
The NGK BR9ES (Osculati 47.558.75) is a premium marine-grade spark plug developed for high-performance 2-stroke outboards that operate at high speeds and temperatures. It features a cold heat range (9), long thread reach (19 mm), and a built-in resistor to minimize electromagnetic interference. Its robust design ensures stable ignition and reduced fouling, even under demanding marine conditions.
Key Features:
- Cold heat range (9) for high-revving 2-stroke marine engines
- Long 19 mm reach allows secure fitment in deeper combustion chambers
- Resistor-equipped to suppress RFI/EMI in sensitive marine electronics
- Nickel alloy electrodes for corrosion resistance and durability
- Wide compatibility with performance-focused 2-stroke outboards
Technical Specifications:
Attribute Value Model NGK BR9ES Osculati Code 47.558.75 Thread Diameter M14 × 1.25 mm Reach 19 mm Hex Size 20.8 mm Heat Range 9 (cold) Gap 0.7 mm Electrode Type Standard Resistor Yes
Manufacturer Compatibility:
- Yamaha
- Suzuki
- Mercury
- Tohatsu
- Selva
- Honda
- Mariner
Cross Reference:
Brand Model NGK BR9ES Champion –
The NGK BR9ES is ideal for marine service technicians working with aggressive 2-stroke outboards operating under load or at high RPM. Its cold range and robust structure make it resistant to pre-ignition, electrode wear, and saltwater-induced degradation, making it a solid choice for performance and reliability.
Documents
Osculati Catalogue 2025 - page 874 Size: 150,5 Kb -
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