NGK Spark Plug BMR4A

NGK Spark Plug BMR4A




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By using a copper electrode, NGK have been able to produce a spark plug with a much wider, more efficient cathode. The plugs do not overheat under high operating loads and can therefore ignite fuel without burning their electrodes. Ribs eliminate flashover. New ceramic insulator provides better heat dissipation, higher electrical insulation and greater resistance against thermal shock. More gaskets and special powder sealing prevent gas leakage and provide uniform heat range. Copper electrode core deeply inserted inside the nickel tip greatly improves heat dissipation and prevents dangerous overheating. Larger space between insulator nose and metal shell reduces fouling and misfiring keeps plug cleaner. Thick, anti-corrosive nickel tip resists overheating and extends spark plug life.

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