10 Packs Genuine NGK 5921 BM6A (7421 BMR6A) Spark Plug Trimmer Edger Copper Core

10 Packs Genuine NGK 5921 BM6A (7421 BMR6A) Spark Plug Trimmer Edger Copper Core

• NGK standard plugs are constructed for longer life and optimum performance.
• Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
• Corrugated ribs prevent Flashover
• Pure alumina silicate ceramic Insulator, provides superior strength and better heat transfer
• Copper Core aids in heat removal
• Triple seals prevent leakage