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Top 10 NGK products – best-selling models in 2026!
Ranking updated: 1 January 2026'
Discover NGK’s best-selling products. Top 10 hits loved by motorcyclists – see which models are number one in 2025!
Top 10 products
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1. NGK spark plug BR8ES
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General description
High-quality spark plug of the renowned NGK brand
ensures the proper functioning of the ignition system
reduces the risk of ignition misses
improves engine operation
reduces fuel consumption
facilitates starting in difficult conditions
made of high quality materials
type: standard
made in Japan
innovative technology
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2. NGK MR8AI9 iridium spark plug
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General description
NGK Iridium spark plugs are currently the highest quality technical solution
the iridium alloy used in the middle electrode ensures high durability and a consistently stable spark
the iridium alloy has an extremely high melting point, making it particularly resistant to spark erosion
thanks to the use of this metal, the service life is on average doubled compared to conventional spark plugs made of nickel
ceramic insulator made of pure alumina and silicate provides excellent strength and better heat transfer
copper core helps dissipate heat
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3. NGK R7435-10 racing spark plug
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General description
The ultimate in the evolution of spark plug technology and performance from the industry leader
The iridium electrode is 25% smaller than a platinum electrode, and it's just 1/4 the size of a conventional nickel electrode
Ultra-small diameter center electrode reduces voltage requirement and extends ignition system life
New metal shell plating has enhanced anti-corrosion qualities
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4. NGK R7437-9 racing spark plug
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General description
The ultimate in the evolution of spark plug technology and performance from the industry leader
The iridium electrode is 25% smaller than a platinum electrode, and it's just 1/4 the size of a conventional nickel electrode
Ultra-small diameter center electrode reduces voltage requirement and extends ignition system life
New metal shell plating has enhanced anti-corrosion qualities
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5. NGK SILMAR10C9 spark plug
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General description
Superior construction for serious power
NGK makes plugs for almost any type of application and riding style
Versatile plugs with wide operating heat ranges prevent fouling from running too cool and preignition from running too hot
Features include high-alumina ceramics for improved heat dissipation and electrical insulation, deep-seated copper core for a wider heat range and a nickel alloy tip for longer life
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6. NGK spark plug BR9ES
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General description
High-quality spark plug of the renowned NGK brand
ensures the proper functioning of the ignition system
reduces the risk of ignition misses
improves engine operation
reduces fuel consumption
facilitates starting in difficult conditions
made of high quality materials
type: standard
made in Japan
innovative technology
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7. NGK spark plug BR7ES
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General description
High-quality spark plug of the renowned NGK brand
ensures the proper functioning of the ignition system
reduces the risk of ignition misses
improves engine operation
reduces fuel consumption
facilitates starting in difficult conditions
made of high quality materials
type: standard
made in Japan
innovative technology
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8. NGK spark plug ZFR4F-11
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General description
High-quality spark plug of the renowned NGK brand
ensures the proper functioning of the ignition system
reduces the risk of ignition misses
improves engine operation
reduces fuel consumption
facilitates starting in difficult conditions
made of high quality materials
type: standard
made in Japan
innovative technology
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9. SPARK PLUG BR10ECS
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10. NGK LZMAR8AI-10 iridium spark plug
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General description
NGK Iridium spark plugs are currently the highest quality technical solution
the iridium alloy used in the middle electrode ensures high durability and a consistently stable spark
the iridium alloy has an extremely high melting point, making it particularly resistant to spark erosion
thanks to the use of this metal, the service life is on average doubled compared to conventional spark plugs made of nickel
ceramic insulator made of pure alumina and silicate provides excellent strength and better heat transfer
copper core helps dissipate heat
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