Denso 3417 Spark Plugs, (Pack of 1)

Product description

• 100 percent pre-fired to ensure reliable operation
• Copper core center electrode for superior thermal conductivity
• Unique five-rib insulator reduces flashover and decreases voltage loss
• Dual copper and glass seal bonds the center electrode and insulator together for a gas-tight seal.
• Lasts up to three times as long as conventional plugs