SKU:
Osculati-47.558.68
€ 42,49
1-2 weeks delivery time
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NGK IZFR5G (Osculati 47.558.68) is a premium iridium spark plug with M14 × 1.25 mm thread, 19 mm reach, 16 mm hex, and factory-set 1.1 mm gap. Its ultra-fine iridium center electrode and projected tip ensure precise ignition in 4-stroke EFI outboards from Yamaha, Mercury, Suzuki, Honda, Tohatsu, Selva, and Mariner. Built for long service life and reliability under marine load cycles. No Champion equivalent.
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Osculati 47.558.68 – NGK IZFR5G Iridium Marine Spark Plug
The NGK IZFR5G (Osculati 47.558.68) is a high-performance iridium spark plug engineered for the demands of modern 4-stroke marine engines. Its ultra-fine iridium-tipped center electrode requires less voltage to generate a strong spark, improving ignition reliability even during cold starts or under extreme load. With a long reach, projected tip, and EMI-suppressing resistor, it’s ideal for engines with electronic ignition and multi-coil setups.
Key Features:
- Ultra-fine iridium center electrode for enhanced ignition and longevity
- Projected insulator tip improves combustion efficiency and throttle response
- Long 19 mm reach ensures correct seating in deep plug wells
- Built-in resistor for radio interference suppression (EMI/RFI)
- 1.1 mm preset gap ideal for modern electronic ignition systems
- Exceptional corrosion resistance for harsh saltwater conditions
Technical Specifications:
Attribute Value Model NGK IZFR5G Osculati Code 47.558.68 Thread Diameter M14 × 1.25 mm Reach 19 mm Hex Size 16 mm Heat Range 5 Gap 1.1 mm Electrode Type Iridium center, projected tip Resistor Yes
Manufacturer Compatibility:
- Yamaha
- Mercury
- Mariner
- Suzuki
- Honda
- Tohatsu
- Selva
Cross Reference:
Brand Model NGK IZFR5G Champion –
The NGK IZFR5G is the spark plug of choice for high-efficiency marine outboards where precise ignition, long service life, and resistance to marine fouling are critical. Its iridium-enhanced core ensures consistent combustion and improved fuel efficiency, even after hundreds of hours in salt-heavy conditions.
Documents
Osculati Catalogue 2025 - page 874 Size: 150,5 Kb -
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