NGK 4551 Standard Spark Plug - BR9HS-10, 2 Pack

NGK Standard Spark Plugs are treated with corrosion resistant plating to ensure ease of installation and removal. The 98% pure copper core delivers increased heat dissipation for more reliable starts and reduced risk of overheating. Cold-rolled threads prevent cross-threading and damage to cylinder heads. Trivalent plating eliminates need for anti-seize. Corrugated ribs prevent flashover. High-grade alumina silicate ceramic.

• 98% pure copper core increases heat dissipation for more reliable starts and prevents spark plug from overheating
• High-grade alumina silicate ceramic insulator for superior strength and heat transfer
• Cold-rolled threads to prevent cross-threading and damage to cylinder heads
• Trivalent plating eliminates need for anti-seize and corrugated ribs prevent flashover
• Quantity: 1 per package