SKU:
Osculati-47.558.19
€ 8,87
1-2 weeks delivery time
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Osculati 47.558.19 – NGK DR7EA is a resistor-type spark plug with a 12 mm thread, 19 mm (3/4") reach, and 18 mm hex, ideal for modern 4-stroke marine engines. It offers clean combustion, RFI suppression, and durability in Yamaha, Mercury, Suzuki, Honda, Tohatsu, Selva, and Mariner engines. Champion equivalent: RA8HC.
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Osculati 47.558.19 – NGK DR7EA Spark Plug
The Osculati 47.558.19 includes the NGK DR7EA spark plug, engineered for 4-stroke marine engines requiring a resistor-type plug with high thermal performance and electronic interference protection. Featuring a 12 mm thread, 19 mm (3/4") reach, and 18 mm hex, the DR7EA is compact yet robust, ideal for high-compression marine engines under continuous load.
Its copper-core center electrode provides consistent heat transfer, while the 5 kΩ resistor ensures safe compatibility with sensitive marine electronics like chartplotters, sonar systems, and VHF radios. The medium heat range (7) supports versatile performance in both cold start and long-duration operation. Equivalent to Champion RA8HC.
Main Features:
- Model: NGK DR7EA
- Thread Size: 12 mm
- Reach: 19 mm (3/4")
- Hex Size: 18 mm
- Resistor: Yes – 5 kΩ internal
- Heat Range: 7 (medium)
- Core Type: Copper core
- Champion Equivalent: RA8HC
Compatible Engine Brands:
- Yamaha
- Mercury
- Mariner
- Honda
- Suzuki
- Tohatsu
- Selva
Benefits:
- Built-in resistor protects onboard electronics from RFI
- Medium heat range for marine start-stop and high-load use
- Durable construction for saltwater environments
- Champion RA8HC equivalent for OEM-level compatibility
Technical Specifications Table:
Parameter Value Item Code 47.558.19 Model NGK DR7EA Thread Size 12 mm Reach 19 mm (3/4") Hex Size 18 mm Resistor Yes (5 kΩ) Heat Range 7 Champion Equivalent RA8HC Application 4-stroke marine outboard engines
The Osculati 47.558.19 – NGK DR7EA spark plug is a compact and durable ignition solution built for modern 4-stroke marine engines. Its electrical compatibility and stable combustion make it ideal for electronically equipped boats requiring reliable spark under all marine conditions.
Documents
Osculati Catalogue 2025 - page 874 Size: 150,5 Kb -
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