NGK 4717 PMR9B Laser Platinum Spark Plug

• Laser Platinum spark plugs provide high ignitability and longer service life
• Dual platinum surfaces ensure slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions
• Laser welded Platinum center electrode tip creates faster starts and quicker acceleration while the platinum disc welded to backside of ground electrode provides long life
• Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
• Triple gasket seal eliminates combustion gas leakage
• Designed to operate over a much wider heat range than ordinary plugs
• Resists carbon buildup and pre-ignition
• High alumina ceramics for better heat transfer and electrical insulation
• Solid copper core and nickel tipped electrode provide a longer plus life
• Patented triple gasket sealing process eliminates the possibility of combustion gas leakage

NGK Spark Plugs are designed to operate over a much wider heat range than ordinary plugs. They resist carbon buildup and pre-ignition. Each features high alumina ceramics for better heat transfer and electrical insulation. A patented triple gasket sealing process eliminates the possibility of combustion gas leakage, and a longer insulator nose prevents fouling and misfiring. A solid copper core and its nickel tipped electrode provide a longer plus life.