SKU:
Osculati-47.558.39
€ 12,69
1-2 weeks delivery time
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NGK LFR6A-11 (Osculati 47.558.39) is a long-reach, resistor-type marine spark plug with M14 × 1.25 mm thread, 19 mm reach, 16 mm hex, and a 1.1 mm preset gap. Commonly installed in 4-stroke outboards from Yamaha, Mercury, Mariner, Suzuki, Tohatsu, Selva, and Honda. It provides clean combustion and EMI suppression for engines with advanced ignition systems. No direct Champion equivalent.
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Osculati 47.558.39 – NGK LFR6A-11 Marine Spark Plug
The NGK LFR6A-11 (Osculati 47.558.39) is a premium-quality spark plug built for modern 4-stroke marine engines. With a long 19 mm reach, resistor core, and projected tip, it ensures stable combustion, cold start reliability, and low electromagnetic interference in sensitive marine electronics. Designed for high-RPM and high-load conditions common in outboard engine operation.
Key Features:
- Resistor-type spark plug for reduced EMI
- Long reach (19 mm) and compact 16 mm hex for deep plug access
- 1.1 mm factory-set gap for optimal spark performance
- Nickel alloy electrode with solid copper core for better heat control
- Designed for advanced 4-stroke marine engines
Technical Specifications:
Attribute Value Model NGK LFR6A-11 Osculati Code 47.558.39 Thread Diameter M14 × 1.25 mm Reach 19 mm Hex Size 16 mm Heat Range 6 Gap 1.1 mm Electrode Type Standard with projected tip Resistor Yes
Manufacturer Compatibility:
- Yamaha
- Mercury
- Mariner
- Suzuki
- Tohatsu
- Selva
- Honda
Cross Reference:
Brand Model NGK LFR6A-11 Champion –
NGK LFR6A-11 is a high-performance spark plug used by OEMs for high-compression 4-stroke outboard engines. Its EMI-resistant construction and reliable ignition performance make it ideal for marine applications requiring consistent spark under demanding conditions.
Documents
Osculati Catalogue 2025 - page 874 Size: 150,5 Kb -
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