SKU:
Osculati-47.558.87
€ 28,41
1-2 weeks delivery time
-
+
NGK ITR4A15 (Osculati 47.558.87) is a premium iridium spark plug featuring M14 × 1.25 mm thread, 19 mm reach, 16 mm hex, and an extended 1.5 mm factory-set gap. Designed for 4-stroke marine engines from Yamaha, Suzuki, Mercury, Honda, Tohatsu, Selva, and Mariner, this plug offers exceptional ignition precision, corrosion resistance, and lifespan. No Champion cross-reference available.
- Description
- Ask a Question
-
Osculati 47.558.87 – NGK ITR4A15 Iridium Marine Spark Plug
The NGK ITR4A15 (Osculati 47.558.87) is a high-performance marine spark plug equipped with an iridium center electrode, providing ultra-fine spark precision and enhanced durability. With a factory-set gap of 1.5 mm and projected tip design, it is particularly suited for modern 4-stroke outboards using electronic fuel injection and advanced ignition control systems.
Key Features:
- Iridium center electrode – high melting point and superior longevity
- 1.5 mm spark gap – promotes efficient ignition in lean-burn EFI systems
- Built-in resistor – prevents EMI interference with marine electronics
- Projected insulator tip – improves fuel burn and throttle response
- Engineered for 4-stroke EFI and high-compression outboard engines
Technical Specifications:
Attribute Value Model NGK ITR4A15 Osculati Code 47.558.87 Thread Diameter M14 × 1.25 mm Reach 19 mm Hex Size 16 mm Heat Range 4 (warm) Gap 1.5 mm Electrode Type Iridium center, projected tip Resistor Yes
Manufacturer Compatibility:
- Yamaha
- Suzuki
- Mercury
- Honda
- Tohatsu
- Selva
- Mariner
Cross Reference:
Brand Model NGK ITR4A15 Champion –
The NGK ITR4A15 is ideal for marine engine applications where precision ignition and extended plug life are critical. It is especially recommended for modern 4-stroke outboards with EFI, providing optimal spark efficiency and corrosion resistance in harsh saltwater environments.
Documents
Osculati Catalogue 2025 - page 874 Size: 150,5 Kb -
Ask a Question
Popular products
