SKU:
Osculati-47.558.42
€ 9,06
1-2 weeks delivery time
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NGK DPR6EB-9 (Osculati 47.558.42) is a precision resistor-type spark plug featuring a 14 mm thread, 19 mm reach, compact 18 mm hex, and a 0.9 mm preset gap. Commonly used in 4-stroke marine engines by Yamaha, Mercury, Mariner, Suzuki, Tohatsu, Selva, and Honda. Optimized for electronic ignition systems. Interchangeable with Champion RA8HC.
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Osculati 47.558.42 – NGK DPR6EB-9 Marine Spark Plug
The NGK DPR6EB-9 (Osculati 47.558.42) is a marine spark plug designed for modern 4-stroke outboard engines requiring long-reach, compact-profile plugs. It includes an internal resistor for radio frequency interference (RFI) suppression and a projected insulator tip to prevent fouling under low-temperature or stop-start conditions. The slim 18 mm hex allows for easy installation in recessed plug wells common in modern marine engines.
Key Features:
- Resistor-type plug reduces EMI/RFI for compatibility with onboard electronics
- Projected insulator for stable combustion and reduced fouling
- Compact 18 mm hex ideal for modern engine designs with limited clearance
- Solid copper core for superior conductivity and heat transfer
- Factory-set 0.9 mm gap for clean ignition under marine loads
Technical Specifications:
Attribute Value Model NGK DPR6EB-9 Osculati Code 47.558.42 Thread Diameter M14 × 1.25 mm Reach 19 mm Hex Size 18 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 DPR6EB-9 Champion RA8HC
The NGK DPR6EB-9 is a professional-grade spark plug for marine applications that require long-reach performance, electronic interference protection, and a narrow profile. It is widely used in 4-stroke engines that demand reliable ignition even during low idle or extended trolling conditions.
Documents
Osculati Catalogue 2025 - page 874 Size: 150,5 Kb -
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