NGK SILMAR9A-9S Spark Plug

Iridium spark plugs provide superior ignitability and long service life. Smallest tip diameter ensures slow wear rate providing stable idle, superior anti-fouling, improved fuel efficiency and lower emissions.

• Laser welded Iridium center electrode tip
• Platinum disc welded to backside of ground electrode provides long life
• Trivalent Metal Plating for superior anti-corrosion and anti-seizing
• Faster starts and quicker acceleration
• Better fuel economy and lower emissions
• Best OEM Iridium spark plug available
• Original Equipment Manufacturer approved design