NGK - Laser Iridium Spark Plug for Mariner, Mercury, Jeep (IZFR5G) Option:IZFR5G Increased sidewall strength offers superior

Increased sidewall strength offers superior stability and puncture protection

Manufacturer Part#:CST-578-16-2

Stator/Generator side: 3mm thick HDPE plastic

Excellent visibility- SAE spec convex lens

Creates a protective barrier which prevents dirt adhesion

NGK - Laser Iridium Spark Plug for Mariner, Mercury, Jeep (IZFR5G) Option:IZFR5G Increased sidewall strength offers superiorLaser welded Platinum or Iridium center electrode tip Platinum disc welded to backside of ground electrode provides long life Trivalent Metal Plating provides superior anti corrosion and anti seizing properties Faster starts and quicker acceleration Better fuel economy and lower emissions Best spark plug available in their category Original Equipment Manufacturer approved design