- Description
- Ask a Question
-
Osculati 47.558.44 – NGK IZFR6F-11 Iridium Marine Spark Plug
The NGK IZFR6F-11 (Osculati 47.558.44) is a high-end iridium spark plug built for marine 4-stroke engines that demand maximum ignition precision and long service life. Its ultra-fine iridium center electrode improves spark efficiency while maintaining exceptional durability under high-load and high-RPM conditions. This plug also includes an internal resistor to prevent electromagnetic interference with sensitive marine electronics.
Key Features:
- Fine-wire iridium center electrode for extended life and improved spark
- 1.1 mm factory-set gap for optimized combustion in high-efficiency engines
- Built-in resistor for EMI and RFI suppression
- Long reach (19 mm) and narrow 16 mm hex for recessed plug wells
- Outstanding anti-fouling performance and cold start reliability
Technical Specifications:
Attribute Value Model NGK IZFR6F-11 Osculati Code 47.558.44 Thread Diameter M14 × 1.25 mm Reach 19 mm Hex Size 16 mm Heat Range 6 Gap 1.1 mm Electrode Type Iridium with projected tip Resistor Yes
Manufacturer Compatibility:
- Yamaha
- Mercury
- Mariner
- Suzuki
- Tohatsu
- Selva
- Honda
Cross Reference:
Brand Model NGK IZFR6F-11 Champion –
The NGK IZFR6F-11 is ideal for marine professionals and high-demand users requiring long-life, high-performance spark plugs with precise ignition and minimal maintenance. Its iridium technology ensures reliable combustion and smoother engine operation, especially in modern 4-stroke outboards with tight tolerances and advanced electronic systems.
Documents
Osculati Catalogue 2025 - page 874 Size: 150,5 Kb -