NGK spark plugs are essential components for igniting the fuel-air mixture in marine engines, providing reliable performance under various conditions. Known for their durability and efficiency, NGK spark plugs are designed to deliver optimal combustion, resulting in smoother engine operation and better fuel economy.
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1-2 weeks delivery time Osculati 47.558.01 – NGK B7HS is a non-resistor marine spark plug designed for use in a wide range of 2-stroke outboard engines. With a 14 mm thread, 12.7 mm (1/2") reach, and 20.8 mm (13/16") hex, it provides reliable cold starts, strong spark, and excellent performance in engines from Mariner, Yamaha, Mercury, Suzuki, Tohatsu, Selva, and Honda. Equivalent to Champion L82C.
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$ 7
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1-2 weeks delivery time Osculati 47.558.02 – NGK BR7HS-10 is a resistor-type marine spark plug commonly used in 2-stroke outboards from Yamaha, Mercury, Mariner, Suzuki, Tohatsu, Selva, and Honda. With a 14 mm thread, 12.7 mm (1/2") reach, 20.8 mm (13/16") hex, and a 1.0 mm factory-set gap, it ensures strong, clean ignition and protects marine electronics via integrated RFI suppression. Equivalent to Champion L82C.
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$ 10,16
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1-2 weeks delivery time Osculati 47.558.03 – NGK B8HS is a non-resistor marine spark plug with a 14 mm thread, 12.7 mm (1/2") reach, and 20.8 mm (13/16") hex. Designed for standard use in 2-stroke outboards by Yamaha, Mercury, Mariner, Suzuki, Tohatsu, Selva, and Honda. Offers strong ignition performance and reliable combustion. Equivalent to Champion L78C.
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$ 7,06
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1-2 weeks delivery time Osculati 47.558.06 – NGK B9HS-10 is a marine-grade spark plug designed for 2-stroke outboard engines operating at high RPM. It features a 14 mm thread, 12.7 mm (1/2") reach, 20.8 mm (13/16") hex, and a factory-set 1.0 mm gap. Designed for performance and durability, it is equivalent to Champion L77JC4.
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$ 8,08
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1-2 weeks delivery time Osculati 47.558.07 – NGK BR9HS-10 is a resistor-type spark plug designed for high-RPM 2-stroke outboards from brands like Yamaha, Mercury, Suzuki, Tohatsu, Mariner, Selva, and Honda. With a 14 mm thread, 12.7 mm (1/2") reach, 20.8 mm (13/16") hex, and a 1.0 mm factory-set gap, it ensures strong, clean ignition and protects sensitive onboard electronics. Equivalent to Champion QL77JC4.
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$ 10,32
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1-2 weeks delivery time Osculati 47.558.08 – NGK B8-HS-10 is a non-resistor marine spark plug with a factory-set 1.0 mm gap. Featuring a 14 mm thread, 12.7 mm (1/2") reach, and 20.8 mm (13/16") hex, it delivers high ignition efficiency and stable combustion in 2-stroke outboards by Yamaha, Mercury, Suzuki, Mariner, Tohatsu, Selva, and Honda. Equivalent to Champion L78C.
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$ 8,51
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1-2 weeks delivery time Osculati 47.558.09 – NGK BR8-HS-10 is a resistor marine spark plug with a factory-set 1.0 mm gap, ideal for 2-stroke outboards from Yamaha, Mercury, Mariner, Suzuki, Tohatsu, Selva, and Honda. Featuring a 14 mm thread, 12.7 mm (1/2") reach, and 20.8 mm (13/16") hex, it provides stable combustion and protects marine electronics. Cross-referenced to Champion QL78C.
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$ 9,68
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1-2 weeks delivery time Osculati 47.558.10 – NGK B7HS-10 is a non-resistor spark plug with a factory-set 1.0 mm gap, built for reliable ignition in 2-stroke marine outboards by Yamaha, Mercury, Mariner, Suzuki, Tohatsu, Selva, and Honda. It features a 14 mm thread, 12.7 mm (1/2") reach, and 20.8 mm (13/16") hex. Equivalent to Champion L77JC4.
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$ 8,19
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1-2 weeks delivery time Osculati 47.558.11 – NGK BPR6HS is a resistor-type spark plug featuring a 14 mm thread, 12.7 mm (1/2") reach, 20.8 mm (13/16") hex, and a copper-core electrode. Factory-gapped for marine use, it offers stable ignition and full RFI suppression for outboards by Yamaha, Mercury, Suzuki, Mariner, Tohatsu, Selva, and Honda. Champion equivalent: RL87YC.
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$ 12,10
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1-2 weeks delivery time Osculati 47.558.12 – NGK B6HS is a non-resistor spark plug with a 14 mm thread, 12.7 mm (1/2") reach, and 20.8 mm (13/16") hex. Designed for smooth ignition and high durability in 2-stroke marine outboards from Yamaha, Mercury, Suzuki, Mariner, Tohatsu, Selva, and Honda. It corresponds to Champion L86C.
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$ 6,91
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1-2 weeks delivery time Osculati 47.558.13 – NGK BP6HS is a non-resistor, projected-tip spark plug designed for reliable marine ignition in 2-stroke and 4-stroke outboards. With a 14 mm thread, 12.7 mm (1/2") reach, 20.8 mm (13/16") hex, and a medium-hot heat range, it fits engines by Yamaha, Mercury, Suzuki, Mariner, Tohatsu, Selva, and Honda. Equivalent to Champion L87YC.
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$ 6,86
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1-2 weeks delivery time Osculati 47.558.14 – NGK BP7HS is a projected-tip, non-resistor marine spark plug with a 14 mm thread, 12.7 mm (1/2") reach, and 20.8 mm (13/16") hex. Designed for enhanced combustion in 2-stroke outboards by Yamaha, Mercury, Suzuki, Mariner, Tohatsu, Selva, and Honda. Medium heat range and excellent anti-fouling properties. Cross-reference: Champion L82YC.
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$ 7,55
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1-2 weeks delivery time Osculati 47.558.15 – NGK CR4HSB is a compact resistor-type spark plug for small-displacement marine outboards. It features a 10 mm thread, 12.7 mm (1/2") reach, 16 mm hex, and a projected-tip copper core electrode. Common in 4-stroke outboards from Yamaha, Mercury, Honda, Tohatsu, and Suzuki. No Champion equivalent.
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$ 10,63
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1-2 weeks delivery time Osculati 47.558.16 – NGK CR6E is a resistor-type spark plug with a 10 mm thread, 19 mm (3/4") reach, and 16 mm hex. It features a projected copper core electrode and is factory-gapped for 4-stroke marine outboards from Honda, Yamaha, Suzuki, Mercury, Mariner, Tohatsu, and Selva. No Champion equivalent.
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$ 17,01
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1-2 weeks delivery time Osculati 47.558.17 – NGK DR5HS is a resistor-type spark plug with a 14 mm thread, 12.7 mm (1/2") reach, and 20.8 mm (13/16") hex. Designed for smooth combustion and RFI protection in 2-stroke marine engines by Yamaha, Mercury, Suzuki, Tohatsu, Selva, Mariner, and Honda. Champion equivalent: P10Y.
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$ 10,86
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1-2 weeks delivery time Osculati 47.558.18 – NGK DR6HS is a resistor-type spark plug with a 14 mm thread, 12.7 mm (1/2") reach, and 20.8 mm (13/16") hex. Designed for 2-stroke marine outboards by Yamaha, Mercury, Mariner, Suzuki, Tohatsu, Selva, and Honda. It provides RFI protection and stable combustion with medium heat range. Champion equivalent: P8Y.
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$ 10,50
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1-2 weeks delivery time 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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$ 10,72
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1-2 weeks delivery time High-performance NGK BPZ8HN-10 spark plug (Osculati 47.558.21) designed for optimal combustion and long service life in outboard engines. Commonly used on Yamaha, Mercury, Mariner, Suzuki, Tohatsu, Selva, and Honda motors. Cross-compatible with Champion QL78YC. Thread size: M14 × 1.25 mm, reach: 19 mm, hex size: 20.8 mm, gap: 1.0 mm. Ideal for 2-stroke and 4-stroke marine engines.
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$ 17,97
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1-2 weeks delivery time NGK BP8HN-10 marine spark plug (Osculati 47.558.22) is a high-performance ignition component designed for marine outboard engines from brands like Yamaha, Mercury, Mariner, Suzuki, Tohatsu, Selva, and Honda. It features a thread size of M14 × 1.25 mm, 19 mm reach, 20.8 mm hex, and a preset gap of 1.0 mm. This plug is ideal for 2-stroke and select 4-stroke applications and corresponds to Champion L78YC.
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$ 8,65
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1-2 weeks delivery time NGK BR6FS spark plug (Osculati 47.558.25) is engineered for marine outboards from Yamaha, Mercury, Mariner, Suzuki, Tohatsu, Selva, and Honda. It features a short 12.7 mm reach, 14 mm thread diameter, 20.8 mm hex, and a 0.7–0.9 mm gap. This resistor-type spark plug suppresses radio frequency interference and corresponds to Champion RV9YC and RV8C. Ideal for 2-stroke engines in marine environments.
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$ 10,16
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How does the iridium tip on NGK spark plug enhance ignition performance?
The iridium tip on an NGK spark plug enhances ignition performance by providing a highly durable and efficient point of ignition. Iridium's high melting point and excellent conductivity ensure a precise and consistent spark, even under demanding engine conditions. This advanced design improves combustion efficiency, resulting in smoother engine operation and better fuel economy.
The NGK brand is recognized worldwide for its commitment to quality and innovation, offering a full line of ignition products and sensors, including position sensors and differential pressure sensors. With a well-trained team and a strong presence in European regions through Niterra EMEA GmbH, the company ensures fast service and expert support for both original and aftermarket applications. This dedication to premium engineering and customer satisfaction underscores NGK’s role as a trusted partner in the automotive and marine industries.
How does NGK utilize advanced sensor technology to enhance spark plug efficiency?
NGK, a leading manufacturer of spark plugs and oxygen sensors, leverages advanced sensor technology to enhance spark plug efficiency. Their NTK oxygen sensors monitor exhaust gas composition, enabling precise adjustments to the air-fuel mixture for optimal combustion. This precise control improves engine performance and reduces emissions. Additionally, NGK's integration of sensor data with ignition systems ensures that spark plugs operate under ideal conditions, further enhancing efficiency and reliability.
How does the design of this product ensure compatibility with OEM standards?
The design of NGK Marine Spark Plugs ensures compatibility with OEM standards by adhering to precise specifications for ignition parts, including coil and wire alignment. NGK, as one of the world’s largest suppliers, incorporates advanced engineering and rigorous testing to meet the technical demands of different automotive systems. This commitment guarantees a seamless fit and reliable performance, maintaining engine speed and efficiency across a wide range of applications.