NGK Spark Plug Iridium – SILMAR9A9S

NGK Laser Iridium spark plugs provide superior ignitability and long service life. Fine wire iridium tipped center electrode and fine wire platinum tipped ground electrode ensures slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions.

• Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
• Corrugated ribs prevent flashover
• Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer
• Copper core aids in heat removal
• Triple seals prevent leakage

• Shell
• Thread Diameter10mm
• Thread Pitch1.0mm
• Seat TypeGasket
• Reach26.5mm (1.04″)
• Hex Size9/16″ (14mm)
• Terminal TypeSolid
• Overall HeightISO
• Gap.035″ (0.9mm)

• Center Electrode
• MaterialIridium
• TypeFine Wire
• Size0.6mm
• ProjectionProjected

• Ground Electrode
• MaterialPlatinum
• TypeSquare
• ShapeTaper Cut
• Quantity1

• Specifications
• ResistorYes
• Resistor Value5k Ohm
• Heat Range9
• FeaturesSpecial Gasket
• Torque SpecsCast Iron: 7.2-10.8 lb. ft. Aluminum: 7.2-8.7 lb. ft.

• Part Information
• BrandNGK/NTK
• Warranty60 Days
• Longevity100k Miles